WO2022009770A1 - 摺動部品 - Google Patents
摺動部品 Download PDFInfo
- Publication number
- WO2022009770A1 WO2022009770A1 PCT/JP2021/024944 JP2021024944W WO2022009770A1 WO 2022009770 A1 WO2022009770 A1 WO 2022009770A1 JP 2021024944 W JP2021024944 W JP 2021024944W WO 2022009770 A1 WO2022009770 A1 WO 2022009770A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- dynamic pressure
- sliding
- sliding surface
- diameter side
- side wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3404—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal
- F16J15/3408—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface
- F16J15/3412—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface with cavities
- F16J15/3416—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface with cavities with at least one continuous groove
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/04—Sliding-contact bearings for exclusively rotary movement for axial load only
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/04—Sliding-contact bearings for exclusively rotary movement for axial load only
- F16C17/045—Sliding-contact bearings for exclusively rotary movement for axial load only with grooves in the bearing surface to generate hydrodynamic pressure, e.g. spiral groove thrust bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3404—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal
- F16J15/3408—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface
- F16J15/3412—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface with cavities
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/50—Bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/50—Bearings
- F04C2240/54—Hydrostatic or hydrodynamic bearing assemblies specially adapted for rotary positive displacement pumps or compressors
Definitions
- the present invention relates to a sliding component used in a rotating machine including an eccentric mechanism.
- Machines with rotary drive used in various industrial fields include not only rotary machines that rotate while the central axis is held in place, but also rotary machines that rotate with eccentricity.
- One of the rotating machines that rotates with eccentricity is a scroll compressor, etc.
- This type of compressor has a fixed scroll with a spiral wrap on the surface of the end plate, and a spiral wrap on the surface of the end plate. It is equipped with a scroll compression mechanism consisting of a movable scroll, an eccentric mechanism that rotates the rotation axis eccentrically, etc., and by rotating the movable scroll relative to the fixed scroll with eccentric rotation, both scrolls can be used. It is a mechanism that pressurizes the fluid supplied from the low pressure chamber on the outer diameter side and discharges the high pressure fluid from the discharge hole formed in the center of the fixed scroll.
- the scroll compressor shown in Patent Document 1 includes a thrust plate that slides relative to the movable scroll on the back side of the movable scroll, and is compressed by a scroll compression mechanism in a back pressure chamber formed on the back side of the thrust plate.
- the present invention has been made focusing on such a problem, and an object of the present invention is to provide a sliding component capable of stably reducing frictional resistance between sliding surfaces accompanied by eccentric rotation.
- the sliding parts of the present invention are A sliding component with a sliding surface that slides relative to each other with eccentric rotation.
- a dynamic pressure generating groove is formed on the sliding surface, which extends in the circumferential direction and is partitioned by a side wall having a corrugated shape having an amplitude in the radial direction.
- the side wall of the dynamic pressure generating groove extends in the circumferential direction with a waveform having an amplitude in the radial direction, it is possible to secure a plurality of intersecting surfaces that generate dynamic pressure regardless of the eccentric rotation angle.
- the sliding surface can be separated from other sliding surfaces in a state where the inclination is reduced, and the frictional resistance between the sliding surfaces can be stably reduced.
- the side walls on both sides in the radial direction of the dynamic pressure generating groove may have a wave shape having an amplitude. According to this, when the sliding surface slides relative to each other with eccentric rotation, dynamic pressure can be generated at a plurality of points in the circumferential direction on both the inner diameter side side wall and the outer diameter side side wall. The sliding surfaces are separated with a small inclination.
- the dynamic pressure generation groove may be formed in an annular shape. According to this, dynamic pressure can be generated over the entire circumference of the sliding surface.
- the side wall may have a wave shape having a fixed period. According to this, the dynamic pressure can be uniformly generated over the circumferential direction of the sliding surface.
- the side wall may have a wavy shape having a curved surface. According to this, the movement of the fluid moving in the dynamic pressure generation groove becomes smooth, and the dynamic pressure can be stably generated.
- FIG. 1 It is a schematic block diagram which shows the scroll compressor to which the side seal as the sliding component of Example 1 which concerns on this invention is applied. It is a figure which shows the sliding surface of the side seal of Example 1 of this invention. It is a cross-sectional view of AA. It is a figure which shows the relative sliding of the sliding surface of the side seal of Example 1 of this invention, and the sliding surface of a thrust plate. With (a) as the starting position, (b) is 90 degrees, (c) is 180 degrees, and (d) is the sliding surface of the side seal that slides relative to each other when the rotation axis rotates eccentrically up to 270 degrees. The positional relationship with the sliding surface of the thrust plate is shown.
- the sliding component of the present invention is applied to a rotating machine including an eccentric mechanism, for example, a scroll compressor C that sucks, compresses, and discharges a refrigerant as a fluid used in an air conditioning system of an automobile or the like.
- the refrigerant is a gas, and a mist-like lubricating oil is mixed therewith.
- the scroll compressor C As shown in FIG. 1, the scroll compressor C is driven by a housing 1, a rotary shaft 2, an inner casing 3, a scroll compression mechanism 4, a side seal 7 as a sliding component, and a thrust plate 8. It is mainly composed of a motor M and.
- the housing 1 is composed of a cylindrical casing 11 and a cover 12 that closes the opening of the casing 11.
- the opening on the side opposite to the opening closed by the cover 12 in the casing 11 is closed by the drive motor M.
- a low pressure chamber 20, a high pressure chamber 30, and a back pressure chamber 50 are formed inside the casing 11.
- a low pressure refrigerant is supplied from a refrigerant circuit (not shown) through a suction port 10.
- a high pressure refrigerant compressed by the scroll compression mechanism 4 is discharged.
- the back pressure chamber 50 as an external space on the high pressure side, a part of the refrigerant compressed by the scroll compression mechanism 4 is supplied together with the lubricating oil.
- the back pressure chamber 50 is formed inside the cylindrical inner casing 3 housed inside the casing 11.
- the cover 12 is formed with a discharge communication passage 13.
- the discharge communication passage 13 communicates a refrigerant circuit (not shown) with the high pressure chamber 30.
- the cover 12 is formed with a part of the back pressure communication passage 14 connecting the high pressure chamber 30 and the back pressure chamber 50, which is branched from the discharge communication passage 13.
- the discharge communication passage 13 is provided with an oil separator 6 that separates the lubricating oil from the refrigerant.
- the inner casing 3 is fixed in a state where its axial end is in contact with the end plate 41a of the fixed scroll 41 constituting the scroll compression mechanism 4. Further, a suction communication passage 15 penetrating in the radial direction is formed on the side wall of the inner casing 3. That is, the low pressure chamber 20 is formed from the outside of the inner casing 3 to the inside of the inner casing 3 via the suction communication passage 15. The refrigerant supplied to the inside of the inner casing 3 through the suction communication passage 15 is sucked into the scroll compression mechanism 4.
- the scroll compression mechanism 4 is mainly composed of a fixed scroll 41 and a movable scroll 42.
- the fixed scroll 41 is hermetically fixed to the cover 12.
- the movable scroll 42 is housed inside the inner casing 3.
- the fixed scroll 41 is made of metal and has a spiral wrap 41b.
- the spiral wrap 41b is projected from the surface of the disk-shaped end plate 41a, that is, the end plate 41a toward the movable scroll 42.
- the fixed scroll 41 is formed with a recess 41c in which the back surface of the end plate 41a, that is, the inner diameter side of the end surface of the end plate 41a in contact with the cover 12 is recessed in the direction opposite to the cover 12.
- the high pressure chamber 30 is defined from the recess 41c and the cover 12.
- the movable scroll 42 is made of metal and has a spiral wrap 42b.
- the spiral wrap 42b is projected from the surface of the disk-shaped end plate 42a, that is, the end plate 42a toward the fixed scroll 41.
- the movable scroll 42 is formed with a boss 42c protruding from the center of the back surface of the end plate 42a.
- An eccentric portion 2a formed on the rotation shaft 2 is fitted into the boss 42c so as to be relatively rotatable.
- the eccentric portion 2a of the rotary shaft 2 and the counterweight portion 2b protruding from the rotary shaft 2 in the outer diameter direction constitute an eccentric mechanism for eccentric rotation of the rotary shaft 2.
- the side seal 7 as a sliding component in this embodiment will be described.
- the side seal 7 is made of resin and has a rectangular cross section and an annular shape in the axial direction. Further, the side seal 7 is fixed to the back surface of the end plate 42a of the movable scroll 42 (see FIG. 1). In addition, in FIG. 2, the sliding surface 7a of the side seal 7 is shown.
- the side seal 7 is formed with a sliding surface 7a that abuts on the sliding surface 8a (see FIG. 1) formed on the thrust plate 8.
- the sliding surface 7a of the side seal 7 includes a dynamic pressure generating groove 70 formed in an endless annular shape along the sliding surface 7a.
- the dynamic pressure generation groove 70 is partitioned by an inner side wall 70a, an outer wall 70b, and a bottom surface 70c.
- the inner side wall 70a is formed as a side wall on the inner side extending in the depth direction orthogonal to the flat surface 72a of the land 72 on the inner side.
- the outer side wall 70b is formed as a side wall on the outer diameter side extending in the depth direction orthogonal to the flat surface 73a of the land 73 on the outer diameter side.
- the bottom surface 70 extends in parallel with the surfaces 72a and 73a formed on the same surface, and is formed by connecting the ends of the inner side wall 70a and the outer wall 70b.
- the inner side wall 70a and the outer wall 70b have a wave shape that extends in the circumferential direction and has an amplitude in the radial direction when viewed from the axial direction.
- the inner side wall 70a and the outer wall 70b have a wave shape with a constant period and a constant amplitude.
- the radial vertices in the amplitude of the inner side wall 70a are referred to as inner diameter side vertices 74 and outer diameter side vertices 75
- the radial vertices in the amplitude of the outer wall 70b are referred to as inner diameter side vertices 76 and outer diameter side vertices. It is referred to as a radial apex 77.
- intersection surface 701 a portion extending in an S shape from the inner diameter side apex 74 of the inner side wall 70a toward the outer diameter side apex 75 adjacent to the outer diameter side in the clockwise direction with respect to the center of the side seal 7 is referred to as an intersection surface 701.
- intersection surface 702. a portion extending in an inverted S shape from the inner diameter side apex 74 toward the outer diameter side apex 75 adjacent to the outer diameter side in the counterclockwise direction with respect to the center of the side seal 7 is referred to as an intersection surface 702.
- intersection surface 703 a portion extending in an S shape from the inner diameter side apex 76 of the outer wall 70b toward the outer diameter side apex 77 adjacent to the outer diameter side in the clockwise direction with respect to the center of the side seal 7 is referred to as an intersection surface 703. Further, a portion extending in an inverted S shape from the inner diameter side apex 76 toward the outer diameter side apex 77 adjacent to the outer diameter side in the counterclockwise direction with respect to the center of the side seal 7 is referred to as an intersection surface 704.
- the inner diameter side apex 74, the outer diameter side apex 75, the inner diameter side apex 76, and the outer diameter side apex 77 are equally arranged in the circumferential direction, respectively.
- the inner diameter side apex 74 and the outer diameter side apex 75 adjacent to each other on the inner side wall 70a have the same maximum amplitude L1a on the inner diameter side and the maximum amplitude L1b on the outer diameter side with reference to a virtual reference line ⁇ extending on the circumference.
- these maximum amplitudes L1a and L1b are the same over the circumferential direction, respectively.
- the inner diameter side apex 76 and the outer diameter side apex 77 adjacent to each other on the outer wall 70b have a maximum amplitude L2a on the inner diameter side and a maximum amplitude L2b on the outer diameter side with reference to a virtual reference line ⁇ extending on the circumference.
- the same, and these maximum amplitudes L2a and L2b are the same over the circumferential direction, respectively.
- the distance L3 (that is, the wavelength) in the circumferential direction between the adjacent inner diameter side apex 74 on the inner side wall 70a is constant over the circumferential direction, and the circumferential distance between the adjacent inner diameter side apex 76 on the outer wall 70b.
- the distance L4 (ie, wavelength) is constant over the circumferential direction.
- the circumferential distance between the outer diameter side apex 75s is the same as the distance L3, and the circumferential distance between the outer diameter side apex 77 is the same length as the distance L4.
- the inner side wall 70a and the outer wall 70b have a curved wave shape.
- the portions near the inner diameter side apex 74 and the inner diameter side apex 76 are curved surfaces forming a convex on the inner diameter side
- the portions near the outer diameter side apex 75 and the outer diameter side apex 77 are on the outer diameter side. It is a curved surface that forms a convex.
- the radial width dimension L5 (that is, the separation width between the inner side wall 70a and the outer wall 70b) of the dynamic pressure generating groove 70 is constant over the circumferential direction, and the dynamic pressure generating groove is constant. It is formed to be larger than the depth dimension L6 of 70 (L5> L6).
- the radial width dimension L5 is constant over the entire circumference of the dynamic pressure generation groove 70. If the width dimension of the dynamic pressure generating groove 70 is formed larger than the depth dimension, the width dimension and the depth dimension of the dynamic pressure generating groove 70 can be freely changed, but the width dimension L5 is the depth dimension L6. It is preferably 10 times or more of. For convenience of explanation, FIG. 3 shows the depth dimension L6 of the dynamic pressure generation groove 70 deeper than it actually is.
- the thrust plate 8 is made of metal and has an annular shape. Further, a seal ring 43 is fixed to the thrust plate 8. The seal ring 43 is in contact with the inner surface of the inner casing 3. As a result, the thrust plate 8 functions as a thrust bearing that receives an axial load of the movable scroll 42 via the side seal 7.
- the side seal 7 and the seal ring 43 partition the low pressure chamber 20 formed on the outer diameter side of the movable scroll 42 and the back pressure chamber 50 formed on the back side of the movable scroll 42 inside the inner casing 3. is doing.
- the back pressure chamber 50 is a closed space formed between the inner casing 3 and the rotating shaft 2.
- the seal ring 44 is fixed to the inner circumference of the through hole 3a provided in the center of the other end of the inner casing 3 and is slidably in contact with the rotating shaft 2 inserted through the through hole 3a in a sealed manner.
- the back pressure communication passage 14 that connects the high pressure chamber 30 and the back pressure chamber 50 is formed over the cover 12, the fixed scroll 41, and the inner casing 3.
- the back pressure communication passage 14 is provided with an orifice (not shown) so that the refrigerant of the high pressure chamber 30 whose pressure reduction is adjusted by the orifice is supplied to the back pressure chamber 50 together with the lubricating oil separated by the oil separator 6. It has become. At this time, the pressure in the back pressure chamber 50 is adjusted to be higher than the pressure in the low pressure chamber 20.
- the inner casing 3 is formed with a pressure relief hole 16 that penetrates in the radial direction and communicates the low pressure chamber 20 and the back pressure chamber 50. Further, a pressure adjusting valve 45 is provided in the pressure release hole 16. The pressure adjusting valve 45 is opened when the pressure in the back pressure chamber 50 exceeds a set value.
- the boss 42c of the movable scroll 42 is inserted through the through hole 8b in the center of the thrust plate 8.
- the through hole 8b is formed to have a diameter that allows eccentric rotation by the eccentric portion 2a of the rotating shaft 2 that is inserted into the boss 42c. That is, the sliding surface 7a of the side seal 7 can slide relative to the sliding surface 8a of the thrust plate 8 by the eccentric rotation of the rotating shaft 2 (see FIG. 4).
- FIGS. 4 (a) to 4 (d) refer to FIG. 4 (a) in the clockwise direction among the rotation loci indicated by the black arrows of the boss 42c when viewed from the fixed scroll 41 side.
- the boss 42c is rotated by 90 degrees, 180 degrees, and 270 degrees, respectively.
- the sliding region between the sliding surface 7a of the side seal 7 and the sliding surface 8a of the thrust plate 8 is schematically shown by dots.
- the rotating shaft 2 only the eccentric portion 2a inserted into the boss 42c is shown, and the counterweight portion 2b and the like constituting the eccentric mechanism are not shown.
- the side seal 7 is a sliding component having a sliding surface 7a that slides relative to the sliding surface 8a of the thrust plate 8 with eccentric rotation.
- FIG. 5 shows an aspect when the side seal 7 moves from the state of FIG. 4 (d) to the state of FIG. 4 (a). Further, in FIG. 5, the side seal 7 when the sliding surface 7a is viewed from the axial direction is shown, and the circles shown in the enlarged portions indicate the points where the pressure is high in the dynamic pressure generation groove 70. There is. Further, in the dynamic pressure generation groove 70, a fluid containing a refrigerant, lubricating oil and the like is stored even when the rotation is stopped.
- the thrust plate 8 when the thrust plate 8 is regarded as an analog clock, the position directly above the paper surface is set to the 12 o'clock position, and at the 12 o'clock position in the dynamic pressure generation groove 70, the dynamic pressure is mainly generated at each intersection surface 701 in the inner side wall 70a. Occurs. Further, at the position of 3 o'clock in the dynamic pressure generation groove 70, dynamic pressure is mainly generated at each intersection surface 704 in the outer wall 70b. Further, at the 6 o'clock position in the dynamic pressure generation groove 70, dynamic pressure is mainly generated at each intersection surface 703 on the outer wall 70b. Further, at the 9 o'clock position in the dynamic pressure generation groove 70, dynamic pressure is mainly generated at each intersection surface 702 in the inner side wall 70a.
- the inner side wall 70a and the outer wall 70b of the dynamic pressure generation groove 70 extend in the circumferential direction in a wavy shape, and have a plurality of intersection surfaces 701 to 704 that intersect with respect to the eccentric rotation of the side seal 7. Therefore, dynamic pressure can be generated by the intersecting surfaces 701 to 704 regardless of the eccentric rotation angle of the side seals 7, and the sliding surfaces 7a and 8a are separated from each other with the inclination reduced, and the sliding surfaces 7a and 8a are separated.
- the frictional resistance can be stably reduced.
- the intersection surfaces 701 and 703 hold the fluid in the dynamic pressure generation groove 70 that moves in the direction relatively opposite to the white arrow. Since it has a concave shape, the fluid in the vicinity of the intersections 701 and 703 is less likely to be dispersed in the circumferential direction, and dynamic pressure is likely to be generated. That is, at the 12 o'clock position and the 6 o'clock position in the dynamic pressure generation groove 70, a larger dynamic pressure is generated than in the 3 o'clock position and the 9 o'clock position in the dynamic pressure generation groove 70.
- FIG. 5 the form when the side seal 7 moves from the state of FIG. 4D to the state of FIG. 4A has been described, but the side seal 7 is from the state of FIG. 4A.
- the form is substantially the same as when moving from the state of FIG. 4 (b), the state of FIG. 4 (b) to the state of FIG. 4 (c), and the state of FIG. 4 (c) to the state of FIG. 4 (d). Since the dynamic pressure is generated in FIG. 4, the side seal 7 is from the state of FIG. 4 (a) to the state of FIG. 4 (b), from the state of FIG. 4 (b) to the state of FIG. 4 (c), and FIG. 4 (c). The description of the form when moving from the state of FIG. 4 (d) to the state of FIG. 4 (d) will be omitted.
- the position where a large dynamic pressure is generated in the dynamic pressure generation groove 70 is determined according to the moving direction of the sliding surface 7a of the side seal 7. Since the dynamic pressure generating groove 70 continuously moves along the circumferential direction, it is possible to maintain a state in which the relative inclination between the sliding surfaces 7a and 8a is suppressed.
- dynamic pressure generation groove 70 is formed in an annular shape, dynamic pressure can be generated over the entire circumference of the sliding surface 7a, and the sliding surface 7a, regardless of the eccentric rotation angle of the side seal 7.
- the inclination of 8a can be reduced.
- the inner side wall 70a and the outer wall 70b have a wave shape with a fixed period, dynamic pressure can be uniformly generated over the circumferential direction of the sliding surface 7a.
- the inner side wall 70a and the outer wall 70b have a curved wave shape, the fluid moves smoothly in the dynamic pressure generation groove 70, and the dynamic pressure can be stably generated.
- the back pressure chamber 50 extends to the inner diameter side of the sliding surfaces 7a, 8a, when the sliding surfaces 7a, 8a are separated from each other, the back pressure chamber 50 is formed from the inner diameter side of the sliding surfaces 7a, 8a.
- the fluid inside is introduced.
- the scroll compression mechanism 4 is driven, the pressure in the back pressure chamber 50 becomes high, and a high-pressure fluid is introduced between the back pressure chamber 50 and the sliding surfaces 7a and 8a.
- the 7a and 8a can be further separated from each other.
- the embodiment in which the radial width dimension L5 (that is, the separation width between the inner side wall 70a and the outer wall 70b) of the dynamic pressure generation groove 70 is constant over the entire circumference is illustrated. Not limited to this, they may be arranged so that the width dimension in the radial direction of the dynamic pressure generating groove is different at different positions in the circumferential direction of the dynamic pressure generating groove.
- the inner side wall and the outer wall may be formed in a wave shape having different amplitudes.
- a plurality of dynamic pressure generating grooves 170 extending in an arc shape in the circumferential direction are arranged apart from each other in the circumferential direction of the sliding surface 107a.
- dynamic pressure can be generated at both ends 170d and 170e in the circumferential direction of each dynamic pressure generating groove 170.
- the dynamic pressure generating grooves 170 are evenly arranged in the circumferential direction.
- the inner side wall 270a has a wavy shape when viewed from the axial direction.
- the outer wall 270b has a circular shape when viewed from the axial direction.
- the dynamic pressure generating groove may have a wavy shape at least one of the inner side wall and the outer wall.
- the inner side wall 270a has an outer diameter side apex 275 that tapers at an acute angle. Further, the inner side wall 270a has a wavy shape. According to this, since the width of the outer diameter side vertices 275 in the circumferential direction can be reduced, it is possible to secure a large arc-shaped intersection surface 271 formed between the adjacent outer diameter side vertices 275 and forming a convex shape on the inner diameter side. can.
- the present invention is not limited to this, and the wave shape is rectangular, triangular, or the like when viewed from the axial direction. There may be.
- the mode in which the side seal 7 as a sliding component is applied to the scroll compressor C used in the air conditioning system of an automobile or the like has been described, but the present invention is not limited to this, and includes an eccentric mechanism. If it is a rotary machine, it may be applied to, for example, a scroll expansion compressor having an expander and a compressor integrally.
- the fluid existing in the space inside and outside the sliding surface of the sliding component may be a gas, a liquid, or a mixed state of a gas and a liquid, respectively.
- the sliding component of the present invention has a sliding surface that slides relative to each other with eccentric rotation
- the sliding component is not limited to an environment where there is a pressure difference between the inside and outside of the sliding surface, and the inside and outside of the sliding surface. It may be used in an environment where the pressure is the same. Further, the sliding component of the present invention does not need to function as a seal, and may be any as long as it can stably reduce the frictional resistance of the sliding surface.
- the side seal having the sliding surface that slides relative to each other is described as being made of resin, and the thrust plate is made of metal.
- the material of the sliding parts is free depending on the usage environment and the like. May be selected for.
- the mode in which the dynamic pressure generating groove is formed on the sliding surface of the side seal has been described, but the present invention is not limited to this, and the sliding surface has a sliding surface that slides relative to each other with eccentric rotation.
- a dynamic pressure generating groove may be formed in the sliding region (see FIG. 4) of the sliding surface of the thrust plate which is a sliding component. Further, a dynamic pressure generating groove may be formed on both the sliding surface of the side seal and the sliding surface of the thrust plate.
- a dynamic pressure generating groove may be formed on a sliding surface that slides relative to each other with eccentric rotation.
- a dynamic pressure generating groove may be formed on either or both of the sliding surface of the thrust plate as a sliding component and the back surface of the end plate of the movable scroll.
- a dynamic pressure generating groove may be formed on the sliding surface of the side seal as a sliding component.
- the side seal abuts on the inner peripheral surface of the inner casing and also functions as a thrust bearing that receives an axial load of the movable scroll.
- the movable scroll does not have a side seal and a thrust plate, and the back surface of the end plate of the movable scroll abuts on the inner peripheral surface of the inner casing and functions as a thrust bearing that receives the axial load of the movable scroll, the movable scroll A dynamic pressure generating groove may be formed on the sliding surface formed on the back surface of the end plate.
- the sliding surface may be provided with a conduction groove that conducts the external space on the inner diameter side or the outer diameter side of the sliding surface and the dynamic pressure generation groove.
- the low pressure side external space exists on the outer diameter side of the side seal and the high pressure external space exists on the inner diameter side of the side seal
- the low pressure side external space and the side are exemplified on the inner diameter side of the side seal.
- a high-pressure external space may exist on the outer diameter side of the seal.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Rotary Pumps (AREA)
- Mechanical Sealing (AREA)
- Sealing Devices (AREA)
Abstract
Description
偏心回転を伴って相対摺動する摺動面を有する摺動部品であって、
前記摺動面には、周方向に延び、径方向に振幅を有する波形の側壁により区画された動圧発生溝が形成されている。
これによれば、動圧発生溝の側壁は径方向に振幅を有する波形で周方向に延びているので、偏心回転角度によらず動圧を発生させる交差面を複数確保することができる。これにより、摺動面は傾きを小さくした状態で他の摺動面から離間し、摺動面間の摩擦抵抗を安定して低減することができる。
これによれば、摺動面が偏心回転を伴って相対摺動したときに、内径側側壁と外径側側壁との両方で周方向に複数の箇所で動圧を発生させることができるため、摺動面は傾きを小さくした状態で離間する。
これによれば、摺動面の全周に亘って動圧を発生させることができる。
これによれば、摺動面の周方向に亘って均等に動圧を発生させることができる。
これによれば、動圧発生溝を移動する流体の移動が円滑となり、安定して動圧を発生させることができる。
7 サイドシール(摺動部品)
7a 摺動面
8 スラストプレート
8a 摺動面
20 低圧室(外径側の外部空間)
30 高圧室
40 圧縮室
41 固定スクロール
42 可動スクロール
50 背圧室(内径側の外部空間、高圧側の外部空間)
70 動圧発生溝
70a 内側壁(内径側の側壁)
70b 外側壁(外径側の側壁)
107 サイドシール(摺動部品)
107a 摺動面
170 動圧発生溝
170a 内側壁(内径側の側壁)
170b 外側壁(外径側の側壁)
207 サイドシール(摺動部品)
270a 内側壁(内径側の側壁)
270b 外側壁(外径側の側壁)
271 交差面
701~704 交差面
C スクロール圧縮機
M 駆動モータ
Claims (5)
- 偏心回転を伴って相対摺動する摺動面を有する摺動部品であって、
前記摺動面には、周方向に延び、径方向に振幅を有する波形の側壁により区画された動圧発生溝が形成されている摺動部品。 - 前記動圧発生溝の径方向両側の側壁が振幅を有する波形状である請求項1に記載の摺動部品。
- 前記動圧発生溝は、環状に形成されている請求項1または2に記載の摺動部品。
- 前記側壁は、一定周期の波形状である請求項1ないし3のいずれかに記載の摺動部品。
- 前記側壁は、曲面状をなす波形状である請求項1ないし4のいずれかに記載の摺動部品。
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202180046039.5A CN115735073A (zh) | 2020-07-06 | 2021-07-01 | 滑动部件 |
| US18/013,520 US12404935B2 (en) | 2020-07-06 | 2021-07-01 | Sliding component |
| JP2022535279A JP7497132B2 (ja) | 2020-07-06 | 2021-07-01 | 摺動部品 |
| EP21837223.3A EP4177487A4 (en) | 2020-07-06 | 2021-07-01 | SLIDING COMPONENT |
| KR1020237001802A KR20230027188A (ko) | 2020-07-06 | 2021-07-01 | 슬라이딩 부품 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020116359 | 2020-07-06 | ||
| JP2020-116359 | 2020-07-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2022009770A1 true WO2022009770A1 (ja) | 2022-01-13 |
Family
ID=79552531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2021/024944 Ceased WO2022009770A1 (ja) | 2020-07-06 | 2021-07-01 | 摺動部品 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US12404935B2 (ja) |
| EP (1) | EP4177487A4 (ja) |
| JP (1) | JP7497132B2 (ja) |
| KR (1) | KR20230027188A (ja) |
| CN (1) | CN115735073A (ja) |
| WO (1) | WO2022009770A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20260022700A1 (en) * | 2022-11-17 | 2026-01-22 | Eagle Industry Co., Ltd. | Thrust receiving mechanism |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7523370B2 (ja) * | 2021-01-22 | 2024-07-26 | サンデン株式会社 | スクロール型圧縮機 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11303858A (ja) * | 1998-04-17 | 1999-11-02 | Matsushita Electric Ind Co Ltd | 動圧多孔質軸受 |
| JP2004360903A (ja) * | 2003-06-02 | 2004-12-24 | Minebea Co Ltd | 軸封装置およびその軸封装置を備えるモータ |
| JP2016061208A (ja) | 2014-09-17 | 2016-04-25 | 三菱重工オートモーティブサーマルシステムズ株式会社 | スクロール圧縮機 |
Family Cites Families (216)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1876515A (en) * | 1932-09-06 | Shaft packing | ||
| US2244450A (en) * | 1938-04-28 | 1941-06-03 | Bbc Brown Boveri & Cie | Packing gland |
| US3380040A (en) | 1964-04-01 | 1968-04-23 | Hughes Aircraft Co | Hydrodynamic bearing support for a magnetic drum |
| US3383116A (en) | 1964-09-30 | 1968-05-14 | J C Carter Company | Face seal |
| GB1097660A (en) * | 1965-07-22 | 1968-01-03 | Stenberg Flygt Ab | A cooling device for sealing rings |
| FR1505487A (fr) | 1966-10-28 | 1967-12-15 | Guinard Pompes | Perfectionnement aux joints tournants à régulation de fuite |
| US3695789A (en) | 1970-04-13 | 1972-10-03 | Case Co J I | Balancing mechanism for fluid translating device |
| US3704019A (en) | 1970-06-19 | 1972-11-28 | Gen Electric | Spiral groove face seals |
| US3782737A (en) | 1970-07-13 | 1974-01-01 | Nasa | Spiral groove seal |
| US3675935A (en) | 1970-07-13 | 1972-07-11 | Nasa | Spiral groove seal |
| US4056478A (en) | 1973-10-04 | 1977-11-01 | Sargent Industries, Inc. | Bearing material employing frangible microcapsules containing lubricant |
| JPS5134974A (en) | 1974-09-19 | 1976-03-25 | Kinugawa Rubber Ind | Dainamitsukushiiru no seiho |
| DE2504204C3 (de) | 1975-02-01 | 1981-11-12 | Skf Kugellagerfabriken Gmbh, 8720 Schweinfurt | Selbstdruckerzeugendes Axialgleitlager |
| FR2342440A1 (fr) | 1976-02-27 | 1977-09-23 | Ca Atomic Energy Ltd | Joint facial pour arbre tournant |
| DE2610045C2 (de) | 1976-03-11 | 1982-06-16 | M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 4200 Oberhausen | Gasgesperrte Wellendichtung |
| DE2622772C3 (de) | 1976-05-21 | 1980-05-08 | Hoesch Werke Ag, 4600 Dortmund | Einrichtung für den Transport und Wechsel von Walzen an Walzenbearbeitungsmaschinen |
| JPS57163770A (en) | 1981-04-01 | 1982-10-08 | Eagle Ind Co Ltd | Mechanical seal |
| DE3223703C2 (de) | 1982-06-25 | 1984-05-30 | M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 4200 Oberhausen | Gasgesperrte Wellendichtung mit radialem Dichtspalt |
| JPS59195253A (ja) | 1983-04-20 | 1984-11-06 | Canon Inc | 電子写真装置 |
| JPS59195254A (ja) | 1983-04-20 | 1984-11-06 | Fujitsu Ltd | プリンタの露光量調整方法及び装置 |
| SU1162279A1 (en) * | 1984-06-07 | 1993-06-15 | V S Chekhovich | Face seal for main circulating pump of nuclear power plants |
| JPS618402A (ja) | 1984-06-20 | 1986-01-16 | Daikin Ind Ltd | スクロール形圧縮機 |
| JPH0647991B2 (ja) | 1986-05-15 | 1994-06-22 | 三菱電機株式会社 | スクロ−ル圧縮機 |
| CH677266A5 (ja) | 1986-10-28 | 1991-04-30 | Pacific Wietz Gmbh & Co Kg | |
| JPS63134883A (ja) | 1986-11-27 | 1988-06-07 | Mitsubishi Electric Corp | スクロ−ル圧縮機 |
| US4836561A (en) * | 1987-02-17 | 1989-06-06 | University Of New Mexico | Wavy-tilt-dam seal ring |
| US4889348A (en) | 1987-06-10 | 1989-12-26 | John Crane-Houdaille, Inc. | Spiral groove seal system for high vapor-pressure liquids |
| JP2541227B2 (ja) | 1987-07-08 | 1996-10-09 | 三菱電機株式会社 | スクロ−ル圧縮機 |
| JPH0216381A (ja) | 1988-07-01 | 1990-01-19 | Daikin Ind Ltd | スクロール型流体装置 |
| JPH02136863A (ja) | 1988-11-18 | 1990-05-25 | Toshiba Corp | 画像形成装置の現像剤 |
| DE3839106A1 (de) | 1988-11-18 | 1990-05-23 | Burgmann Dichtungswerk Feodor | Gleitringdichtung |
| JPH06105105B2 (ja) | 1989-03-03 | 1994-12-21 | 日本ピラー工業株式会社 | 端面非接触形メカニカルシール |
| US5316455A (en) | 1989-10-25 | 1994-05-31 | Matsushita Refrigeration Company | Rotary compressor with stabilized rotor |
| JPH0660690B2 (ja) | 1990-06-18 | 1994-08-10 | 日本ピラー工業株式会社 | 動圧非接触形メカニカルシール |
| JPH0756345B2 (ja) | 1990-07-09 | 1995-06-14 | 株式会社荏原製作所 | 非接触端面シール |
| US5071141A (en) | 1990-07-17 | 1991-12-10 | John Crane Inc. | Spiral groove seal arrangement for high vapor-pressure liquids |
| US5224714A (en) | 1990-07-18 | 1993-07-06 | Ebara Corporation | Noncontacting face seal |
| JPH07117167B2 (ja) | 1991-05-09 | 1995-12-18 | 日本ピラー工業株式会社 | 非接触形メカニカルシール装置 |
| JP3024267B2 (ja) | 1991-06-11 | 2000-03-21 | 松下電器産業株式会社 | スクロールコンプレッサ |
| JP2516301B2 (ja) | 1991-06-13 | 1996-07-24 | インターナショナル・ビジネス・マシーンズ・コーポレイション | テ―プ駆動装置 |
| US5174584A (en) | 1991-07-15 | 1992-12-29 | General Electric Company | Fluid bearing face seal for gas turbine engines |
| JPH0560247A (ja) | 1991-08-26 | 1993-03-09 | Nippon Pillar Packing Co Ltd | 非接触形メカニカルシール |
| JPH0680623B2 (ja) | 1991-09-25 | 1994-10-12 | 北海道電力株式会社 | 電力需給用計器用変成器 |
| DE4303237A1 (de) | 1992-02-06 | 1993-10-21 | Eagle Ind Co Ltd | Gasdichtung |
| JPH05296248A (ja) | 1992-04-21 | 1993-11-09 | Sumitomo Electric Ind Ltd | 摺動部材 |
| JP3517888B2 (ja) | 1992-09-18 | 2004-04-12 | ブラザー工業株式会社 | カラー電子写真画像形成装置 |
| MY108842A (en) | 1992-09-21 | 1996-11-30 | Koninklijke Philips Electronics Nv | Method of manufacturing a dynamic groove bearing, die suitable for use in such a method, and housing and bearing part manufactured by such a method; data storage unit provided with such a groove bearing, method of manufacturing a rotable scanning unit, and magnetic tape device provided with such a scanning unit |
| JPH0769020B2 (ja) | 1992-10-07 | 1995-07-26 | 日本ピラー工業株式会社 | メカニカルシール |
| JPH0769021B2 (ja) | 1992-12-11 | 1995-07-26 | 日本ピラー工業株式会社 | 非接触形軸封装置 |
| JPH0743038A (ja) | 1993-07-30 | 1995-02-10 | Mitsubishi Heavy Ind Ltd | 吸収式冷凍機 |
| US5441283A (en) | 1993-08-03 | 1995-08-15 | John Crane Inc. | Non-contacting mechanical face seal |
| AU685502B2 (en) * | 1993-09-01 | 1998-01-22 | Durametallic Corporation | Face seal with angled and annular grooves |
| US5558341A (en) | 1995-01-11 | 1996-09-24 | Stein Seal Company | Seal for sealing an incompressible fluid between a relatively stationary seal and a movable member |
| US5769604A (en) | 1995-05-04 | 1998-06-23 | Eg&G Sealol, Inc. | Face seal device having high angular compliance |
| JP2903458B2 (ja) | 1995-09-29 | 1999-06-07 | 日本ピラー工業株式会社 | 大型缶水循環ポンプ用熱水軸封装置 |
| JP3696683B2 (ja) | 1996-02-21 | 2005-09-21 | 株式会社日立製作所 | スクロール圧縮機 |
| JPH09292034A (ja) | 1996-04-25 | 1997-11-11 | Mitsubishi Heavy Ind Ltd | メカニカルシール |
| US5833518A (en) | 1996-08-02 | 1998-11-10 | Flowserve Management Company | Method for forming a wavy face ring |
| US5834094A (en) | 1996-09-30 | 1998-11-10 | Surface Technologies Ltd. | Bearing having micropores and design method thereof |
| JPH10281299A (ja) | 1997-04-11 | 1998-10-23 | Mitsubishi Heavy Ind Ltd | メカニカルシール装置 |
| JPH10292867A (ja) | 1997-04-16 | 1998-11-04 | Mitsubishi Heavy Ind Ltd | ガスシール装置 |
| JP3041592B2 (ja) | 1997-06-05 | 2000-05-15 | 株式会社ゼクセル | 横置き型スクロールコンプレッサ |
| US6152452A (en) | 1997-10-17 | 2000-11-28 | Wang; Yuming | Face seal with spiral grooves |
| JPH11132163A (ja) | 1997-10-23 | 1999-05-18 | Zexel:Kk | 横置き型スクロールコンプレッサ |
| CN1133834C (zh) | 1997-11-21 | 2004-01-07 | 日本皮拉工业株式会社 | 静压型非接触气封 |
| JP3192152B2 (ja) | 1997-11-21 | 2001-07-23 | 日本ピラー工業株式会社 | 静圧形ノンコクタクトガスシール |
| JPH11287329A (ja) | 1998-04-03 | 1999-10-19 | Eagle Ind Co Ltd | 摺動材 |
| JP3066367B1 (ja) | 1999-03-04 | 2000-07-17 | 日本ピラー工業株式会社 | 軸封装置 |
| US6213473B1 (en) | 1999-03-06 | 2001-04-10 | Utex Industries, Inc. | Double gas seal with coplanar pad faces |
| JP4232278B2 (ja) | 1999-06-25 | 2009-03-04 | パナソニック株式会社 | 動圧軸受及びそれを搭載したスピンドルモータ |
| US7044470B2 (en) | 2000-07-12 | 2006-05-16 | Perkinelmer, Inc. | Rotary face seal assembly |
| US6446976B1 (en) | 2000-09-06 | 2002-09-10 | Flowserve Management Company | Hydrodynamic face seal with grooved sealing dam for zero-leakage |
| DE10048256A1 (de) | 2000-09-29 | 2002-04-25 | Federal Mogul Wiesbaden Gmbh | Bundlager und Verfahren zu seiner Herstellung |
| CN2460801Y (zh) | 2001-01-18 | 2001-11-21 | 王玉明 | 可双向旋转的螺旋槽端面密封装置 |
| US6655693B2 (en) | 2001-04-26 | 2003-12-02 | John Crane Inc. | Non-contacting gas compressor seal |
| JP2003074449A (ja) * | 2001-09-05 | 2003-03-12 | Denso Corp | スタータ |
| US6692006B2 (en) | 2001-10-15 | 2004-02-17 | Stein Seal Company | High-pressure film-riding seals for rotating shafts |
| JP4054608B2 (ja) | 2002-05-23 | 2008-02-27 | イーグル工業株式会社 | 板ブラシシール |
| CN100427816C (zh) | 2002-09-20 | 2008-10-22 | 徐万福 | 一种由角形微槽族组成的螺旋槽端面机械密封 |
| JP4316956B2 (ja) | 2002-10-23 | 2009-08-19 | イーグル工業株式会社 | 摺動部品 |
| JP2005124255A (ja) | 2003-10-14 | 2005-05-12 | Asmo Co Ltd | モータ回転軸、モータ回転軸のスラスト軸受構造、減速機付きモータ及びモータ回転軸の製造方法 |
| CN1261698C (zh) | 2003-10-15 | 2006-06-28 | 哈尔滨工业大学 | 具有倾斜集气槽的动压球轴承 |
| JP4296292B2 (ja) | 2003-10-31 | 2009-07-15 | 株式会社豊田中央研究所 | 流体軸受 |
| KR100548489B1 (ko) | 2003-12-20 | 2006-02-02 | 엘지전자 주식회사 | 스크롤 압축기의 급유구조 |
| JP4719414B2 (ja) | 2003-12-22 | 2011-07-06 | イーグル工業株式会社 | 摺動部品 |
| JP4119398B2 (ja) | 2004-04-30 | 2008-07-16 | 日本ピラー工業株式会社 | 非接触形メカニカルシール |
| GB2413603A (en) | 2004-04-30 | 2005-11-02 | Corac Group Plc | A dry gas seal assembly |
| US7377518B2 (en) | 2004-05-28 | 2008-05-27 | John Crane Inc. | Mechanical seal ring assembly with hydrodynamic pumping mechanism |
| JP2006009614A (ja) | 2004-06-23 | 2006-01-12 | Matsushita Electric Ind Co Ltd | スクロール圧縮機 |
| JP4262656B2 (ja) | 2004-09-10 | 2009-05-13 | 日本ピラー工業株式会社 | 非接触型シール装置 |
| JP2006090524A (ja) | 2004-09-27 | 2006-04-06 | Nissei Co Ltd | 動圧流体軸受 |
| US7744094B2 (en) | 2004-11-09 | 2010-06-29 | Eagle Industry Co., Ltd. | Mechanical seal device |
| JP2006183702A (ja) | 2004-12-27 | 2006-07-13 | Hitachi Industrial Equipment Systems Co Ltd | スラスト軸受 |
| JP4511412B2 (ja) | 2005-05-11 | 2010-07-28 | 株式会社デンソー | スクロール型圧縮機 |
| JP2007162045A (ja) | 2005-12-12 | 2007-06-28 | Japan Science & Technology Agency | 摺動材及びその製造方法 |
| US20070228664A1 (en) | 2006-03-31 | 2007-10-04 | Krishnamurthy Anand | Mechanical seals and methods of making |
| US7793940B2 (en) | 2006-05-16 | 2010-09-14 | Skf Usa Inc. | Mechanical end face seal with ultrahard face material |
| US7799388B2 (en) | 2006-05-26 | 2010-09-21 | Sulzer Metco Venture, Llc | Mechanical seals and method of manufacture |
| US20080284105A1 (en) | 2006-06-21 | 2008-11-20 | Thurai Manik Vasagar | Low and reverse pressure application hydrodynamic pressurizing seals |
| US20090200749A1 (en) | 2006-07-25 | 2009-08-13 | Eagle Industry Co., Ltd. | Mechanical seal device |
| JP4906438B2 (ja) | 2006-08-25 | 2012-03-28 | 株式会社デンソー | スクロール型圧縮機 |
| US7878777B2 (en) | 2006-08-25 | 2011-02-01 | Denso Corporation | Scroll compressor having grooved thrust bearing |
| JP4709713B2 (ja) * | 2006-08-25 | 2011-06-22 | 株式会社デンソー | スクロール型圧縮機 |
| JP4772623B2 (ja) | 2006-08-25 | 2011-09-14 | 株式会社デンソー | スクロール型圧縮機 |
| US8162322B2 (en) | 2006-10-25 | 2012-04-24 | Rexnord Industries, Llc | Hydrodynamic seal with circumferentially varying lift force |
| WO2009066664A1 (ja) | 2007-11-20 | 2009-05-28 | Eagle Industry Co., Ltd. | メカニカルシール及びタンデムシール |
| US20090326087A1 (en) | 2008-06-27 | 2009-12-31 | Xerox Corporation | Method for treating microcapsules for use in imaging member |
| DE102008038396A1 (de) | 2008-08-19 | 2010-02-25 | Surcoatec International Ag | Gleitring für eine Gleitringdichtung |
| JP5271679B2 (ja) | 2008-12-02 | 2013-08-21 | 三菱重工業株式会社 | スクロール型圧縮機 |
| US8100405B2 (en) | 2009-01-06 | 2012-01-24 | General Electric Company | System and method for providing compliant rotating seals |
| US9551421B2 (en) | 2009-02-10 | 2017-01-24 | Nok Corporation | Sliding member and process for producing the same |
| JP5456772B2 (ja) | 2009-05-25 | 2014-04-02 | イーグル工業株式会社 | シール装置 |
| CN101793324B (zh) | 2009-08-06 | 2011-12-28 | 浙江工业大学 | 三维似鱼鳞织构底面型槽流体动压型液体机械密封结构 |
| CN201496542U (zh) | 2009-08-06 | 2010-06-02 | 浙江工业大学 | 三维似鱼鳞织构底面型槽流体动压型液体机械密封结构 |
| CN101644333B (zh) | 2009-08-20 | 2011-08-31 | 浙江工业大学 | 三维似羽毛织构底面型槽气体端面密封结构 |
| EP2350503B1 (en) | 2009-08-27 | 2016-12-07 | Stein Seal Company | Hydrodynamic circumferential seal system for large translations |
| JP2011074931A (ja) | 2009-09-29 | 2011-04-14 | Ihi Corp | 可燃性ガス圧縮機のシール装置 |
| WO2011105513A1 (ja) | 2010-02-26 | 2011-09-01 | Nok株式会社 | シールリング |
| JP5518527B2 (ja) | 2010-03-04 | 2014-06-11 | イーグル工業株式会社 | 摺動部品 |
| WO2011115073A1 (ja) | 2010-03-15 | 2011-09-22 | イーグル工業株式会社 | 摺動部材 |
| JP5122607B2 (ja) | 2010-06-17 | 2013-01-16 | キヤノンマシナリー株式会社 | 平面摺動機構 |
| DE202010011173U1 (de) | 2010-08-09 | 2011-12-22 | Eagleburgmann Germany Gmbh & Co. Kg | Gleitring mit verbesserten Einlaufeigenschaften |
| JP2012062534A (ja) | 2010-09-16 | 2012-03-29 | Jtekt Corp | 摺動部材 |
| WO2012046749A1 (ja) | 2010-10-06 | 2012-04-12 | イーグル工業株式会社 | 摺動部品 |
| JP2012082794A (ja) | 2010-10-14 | 2012-04-26 | Sanden Corp | スクロール型流体機械 |
| JP2012122135A (ja) | 2010-11-18 | 2012-06-28 | Furukawa Electric Co Ltd:The | めっき助材、めっき液およびめっき材料 |
| CN201972927U (zh) | 2010-12-22 | 2011-09-14 | 艾默生环境优化技术有限公司 | 用于卧式涡旋压缩机的止推板和卧式涡旋压缩机 |
| CN102777606A (zh) * | 2011-05-09 | 2012-11-14 | 刘讯岐 | 波纹槽密封环结构 |
| WO2013031529A1 (ja) * | 2011-09-03 | 2013-03-07 | イーグル工業株式会社 | 摺動部品 |
| EP2752603B1 (en) | 2011-09-03 | 2019-10-30 | Eagle Industry Co., Ltd. | Sliding component |
| WO2013035503A1 (ja) | 2011-09-10 | 2013-03-14 | イーグル工業株式会社 | 摺動部品 |
| US9151390B2 (en) | 2011-09-10 | 2015-10-06 | Eagle Industry Co., Ltd. | Sliding parts |
| DE102011116162A1 (de) | 2011-10-14 | 2013-04-18 | Eagleburgmann Germany Gmbh & Co. Kg | Gleitring einer Gleitringdichtungsanordnung mit laufzeitverlängernden Eigenschaften sowie Verfahren zu dessen Herstellung |
| JP5767959B2 (ja) | 2011-12-22 | 2015-08-26 | 大豊工業株式会社 | 摺動部材 |
| JP6037622B2 (ja) | 2012-02-16 | 2016-12-07 | 三菱重工業株式会社 | スクロール型圧縮機 |
| JP5928106B2 (ja) | 2012-04-02 | 2016-06-01 | オイレス工業株式会社 | 静圧気体軸受及びこの静圧気体軸受を用いた直動案内装置 |
| WO2013176011A1 (ja) | 2012-05-21 | 2013-11-28 | イーグル工業株式会社 | 摺動部品 |
| CN104334939B (zh) | 2012-08-04 | 2017-05-31 | 伊格尔工业股份有限公司 | 滑动部件 |
| WO2014024741A1 (ja) | 2012-08-04 | 2014-02-13 | イーグル工業株式会社 | 摺動部品 |
| JP6279474B2 (ja) | 2012-09-11 | 2018-02-14 | イーグル工業株式会社 | 摺動部品 |
| US9347566B2 (en) | 2012-10-18 | 2016-05-24 | Eagle Industry Co., Ltd. | Sliding component |
| US9964215B2 (en) | 2012-12-25 | 2018-05-08 | Eagle Industry Co., Ltd. | Sliding component |
| CA2903849C (en) | 2013-01-23 | 2019-06-18 | Flowserve Management Company | Mechanical face seal with a reverse trapezoidal face pattern |
| CN203098871U (zh) | 2013-01-30 | 2013-07-31 | 浙江工业大学 | 似蘑菇型槽双向旋转流体动压型机械密封结构 |
| WO2014142265A1 (ja) | 2013-03-14 | 2014-09-18 | イーグルブルグマンジャパン株式会社 | メカニカルシール装置 |
| CN104769340B (zh) | 2013-03-17 | 2016-08-24 | 伊格尔工业股份有限公司 | 滑动部件 |
| CN104769341B (zh) | 2013-03-17 | 2017-04-05 | 伊格尔工业股份有限公司 | 滑动部件 |
| EP3246604B1 (en) | 2013-04-24 | 2020-05-13 | Eagle Industry Co., Ltd. | Sliding component |
| GB2513867A (en) | 2013-05-07 | 2014-11-12 | Mahle Int Gmbh | Sliding engine component |
| CN103267132B (zh) | 2013-05-28 | 2015-08-05 | 南京林业大学 | 自泵送流体动压型机械密封 |
| CN203641506U (zh) | 2013-08-20 | 2014-06-11 | 浙江工业大学 | 倾斜渐变多孔端面非接触式机械密封结构 |
| JP6210814B2 (ja) | 2013-09-26 | 2017-10-11 | ポリプラスチックス株式会社 | 摺動部材 |
| JP2015068330A (ja) | 2013-10-01 | 2015-04-13 | 三菱重工業株式会社 | 摺動部材 |
| CN103557229A (zh) | 2013-10-22 | 2014-02-05 | 申科滑动轴承股份有限公司 | 一种水润滑阶梯瓦动压推力轴承的设计方法 |
| CN103557334A (zh) | 2013-11-14 | 2014-02-05 | 江苏大学 | 一种实现零泄漏非接触的多端面组合式机械密封 |
| CN105917151A (zh) | 2014-01-24 | 2016-08-31 | Nok株式会社 | 密封圈 |
| US9863473B2 (en) | 2014-02-24 | 2018-01-09 | Eagle Industry Co., Ltd. | Sliding parts and processing method of sliding parts |
| JP6329411B2 (ja) | 2014-03-25 | 2018-05-23 | Ntn株式会社 | 内接歯車ポンプ |
| US20150345642A1 (en) | 2014-05-29 | 2015-12-03 | Caterpillar Inc. | Thin film coating on mechanical face seals |
| WO2016035860A1 (ja) | 2014-09-04 | 2016-03-10 | イーグル工業株式会社 | メカニカルシール |
| US10274086B2 (en) | 2014-09-20 | 2019-04-30 | Eagle Industry Co., Ltd. | Sliding component |
| JP6224568B2 (ja) | 2014-10-17 | 2017-11-01 | イーグル工業株式会社 | メカニカルシール |
| AU2015344384A1 (en) | 2014-11-08 | 2017-04-27 | Eagle Industry Co., Ltd. | Sliding parts |
| WO2016104535A1 (ja) | 2014-12-22 | 2016-06-30 | イーグル工業株式会社 | すべり軸受及びポンプ |
| US10132411B2 (en) | 2015-02-14 | 2018-11-20 | Eagle Industry Co., Ltd. | Sliding component |
| JP6444492B2 (ja) | 2015-04-15 | 2018-12-26 | イーグル工業株式会社 | 摺動部品 |
| WO2016167170A1 (ja) | 2015-04-16 | 2016-10-20 | イーグル工業株式会社 | 摺動部品 |
| WO2016186019A1 (ja) | 2015-05-19 | 2016-11-24 | イーグル工業株式会社 | 摺動部品 |
| JP6595589B2 (ja) | 2015-05-20 | 2019-10-23 | イーグル工業株式会社 | 摺動部品 |
| CN107532724B (zh) | 2015-05-21 | 2019-10-11 | 伊格尔工业股份有限公司 | 滑动部件 |
| WO2016203878A1 (ja) | 2015-06-15 | 2016-12-22 | イーグル工業株式会社 | 摺動部品 |
| CN114935012A (zh) | 2015-06-30 | 2022-08-23 | 伊格尔工业股份有限公司 | 密封装置 |
| US10274087B2 (en) | 2015-09-25 | 2019-04-30 | Flowserve Management Company | Reverse pressure capable mechanical seal |
| CN108138967B (zh) | 2015-10-05 | 2020-04-07 | 伊格尔工业股份有限公司 | 滑动部件 |
| CN205244387U (zh) | 2015-12-10 | 2016-05-18 | 中国石油大学(华东) | 双向旋转花瓣型端面机械密封结构 |
| WO2017110778A1 (ja) | 2015-12-25 | 2017-06-29 | 三菱マテリアル株式会社 | 焼結含油軸受及びその製造方法 |
| US11162591B2 (en) | 2016-03-10 | 2021-11-02 | General Electric Company | Seal ring assembly for a dynamoelectric machine |
| US11473626B2 (en) | 2016-05-16 | 2022-10-18 | Roller Bearing Company Of America, Inc. | Bearing system with self-lubrication features, seals, grooves and slots for maintenance-free operation |
| CN205877184U (zh) | 2016-06-20 | 2017-01-11 | 昆明理工大学 | 一种具有仿枫叶形槽的机械密封环 |
| CN205877198U (zh) | 2016-06-20 | 2017-01-11 | 昆明理工大学 | 一种具有椭圆槽的机械密封环 |
| CN106439023B (zh) | 2016-07-28 | 2018-03-06 | 浙江工业大学 | 一种余弦曲线型机械密封端面结构 |
| US10954790B2 (en) | 2016-08-02 | 2021-03-23 | Eagle Industry Co., Ltd. | Stepped sealing device circumferential pumping groove |
| EP3508763A4 (en) | 2016-09-01 | 2020-04-15 | Eagle Industry Co., Ltd. | SLIDING ELEMENT |
| US10989249B2 (en) | 2016-11-14 | 2021-04-27 | Eagle Industry Co., Ltd. | Sliding component |
| WO2018092742A1 (ja) | 2016-11-16 | 2018-05-24 | イーグル工業株式会社 | しゅう動部品 |
| DE102016223636B3 (de) * | 2016-11-29 | 2018-05-17 | Eagleburgmann Germany Gmbh & Co. Kg | Gleitringdichtungsanordnung mit minimaler Leckage |
| JP6861730B2 (ja) | 2016-12-07 | 2021-04-21 | イーグル工業株式会社 | しゅう動部品 |
| US11125335B2 (en) | 2017-01-30 | 2021-09-21 | Eagle Industry Co., Ltd. | Sliding component |
| CN110168264B (zh) | 2017-01-30 | 2021-06-15 | 伊格尔工业股份有限公司 | 滑动部件 |
| KR102346395B1 (ko) * | 2017-05-19 | 2022-01-03 | 이구루코교 가부시기가이샤 | 슬라이딩 부품 |
| US11248706B2 (en) | 2017-07-07 | 2022-02-15 | Eagle Industry Co., Ltd. | Sliding member |
| CN110832235B (zh) | 2017-07-13 | 2022-07-12 | 伊格尔工业股份有限公司 | 滑动部件 |
| JP7143038B2 (ja) * | 2017-07-14 | 2022-09-28 | イーグル工業株式会社 | 摺動部品 |
| US11221071B2 (en) | 2017-09-05 | 2022-01-11 | Eagle Industry Co., Ltd. | Sliding component |
| CN107489770A (zh) | 2017-09-29 | 2017-12-19 | 重庆三峡学院 | 一种双向机械密封环 |
| JP7234123B2 (ja) | 2017-10-03 | 2023-03-07 | イーグル工業株式会社 | 摺動部品 |
| CN108131386A (zh) | 2017-12-22 | 2018-06-08 | 上海理工大学 | 一种动静压锥体转动副 |
| CN108223799B (zh) * | 2017-12-26 | 2021-03-30 | 南昌工程学院 | 一种可双向旋转的流体动压型机械密封结构 |
| WO2019139107A1 (ja) | 2018-01-12 | 2019-07-18 | イーグル工業株式会社 | 摺動部品 |
| EP3748205B1 (en) | 2018-02-01 | 2024-12-18 | Eagle Industry Co., Ltd. | Sliding parts |
| CN112088266B (zh) | 2018-05-17 | 2022-12-06 | 伊格尔工业股份有限公司 | 密封环 |
| EP3816490B1 (en) * | 2018-05-17 | 2024-11-06 | Eagle Industry Co., Ltd. | Seal ring |
| CN112105851B (zh) | 2018-05-17 | 2023-02-28 | 伊格尔工业股份有限公司 | 密封环 |
| RU2690287C1 (ru) * | 2018-06-27 | 2019-05-31 | Акционерное общество "Центральное конструкторское бюро машиностроения" (АО "ЦКБМ") | Элемент пары трения торцового уплотнения |
| KR102498751B1 (ko) | 2018-08-01 | 2023-02-13 | 이구루코교 가부시기가이샤 | 슬라이딩 부품 |
| KR102661123B1 (ko) * | 2018-10-24 | 2024-04-29 | 이구루코교 가부시기가이샤 | 슬라이딩 부재 |
| US10731702B2 (en) | 2018-11-05 | 2020-08-04 | Energy Recovery, Inc. | System and method for hybrid hydrodynamic-hydrostatic thrust bearings |
| CN109237042A (zh) | 2018-11-14 | 2019-01-18 | 北京动力机械研究所 | 自清洗齿形动压型槽端面机械密封结构 |
| EP4198353B1 (en) | 2018-11-30 | 2025-03-12 | Eagle Industry Co., Ltd. | Sliding component |
| KR102541901B1 (ko) | 2018-12-21 | 2023-06-13 | 이구루코교 가부시기가이샤 | 슬라이딩 부품 |
| EP3901477B1 (en) | 2018-12-21 | 2023-03-29 | Tpr Co., Ltd. | Thrust washer |
| NL2022585B1 (nl) | 2019-02-15 | 2020-08-28 | Lagersmit Sealing Solutions B V | Radiaal afdichtingssysteem |
| EP4080090A4 (en) | 2019-12-17 | 2023-12-13 | Eagle Industry Co., Ltd. | SLIDING COMPONENT |
| CN110883612A (zh) * | 2019-12-18 | 2020-03-17 | 哈尔滨电气动力装备有限公司 | 核主泵主轴机械密封波形端面静环及其制造方法 |
| CN110925426A (zh) | 2019-12-26 | 2020-03-27 | 温州市天成密封件制造有限公司 | 一种具有椭圆型槽的上游泵送机械密封环 |
| KR20230022986A (ko) | 2020-07-06 | 2023-02-16 | 이구루코교 가부시기가이샤 | 슬라이딩 부품 |
-
2021
- 2021-07-01 JP JP2022535279A patent/JP7497132B2/ja active Active
- 2021-07-01 WO PCT/JP2021/024944 patent/WO2022009770A1/ja not_active Ceased
- 2021-07-01 CN CN202180046039.5A patent/CN115735073A/zh active Pending
- 2021-07-01 US US18/013,520 patent/US12404935B2/en active Active
- 2021-07-01 EP EP21837223.3A patent/EP4177487A4/en not_active Withdrawn
- 2021-07-01 KR KR1020237001802A patent/KR20230027188A/ko active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11303858A (ja) * | 1998-04-17 | 1999-11-02 | Matsushita Electric Ind Co Ltd | 動圧多孔質軸受 |
| JP2004360903A (ja) * | 2003-06-02 | 2004-12-24 | Minebea Co Ltd | 軸封装置およびその軸封装置を備えるモータ |
| JP2016061208A (ja) | 2014-09-17 | 2016-04-25 | 三菱重工オートモーティブサーマルシステムズ株式会社 | スクロール圧縮機 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP4177487A4 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20260022700A1 (en) * | 2022-11-17 | 2026-01-22 | Eagle Industry Co., Ltd. | Thrust receiving mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20230027188A (ko) | 2023-02-27 |
| US12404935B2 (en) | 2025-09-02 |
| US20230296131A1 (en) | 2023-09-21 |
| EP4177487A1 (en) | 2023-05-10 |
| JP7497132B2 (ja) | 2024-06-10 |
| JPWO2022009770A1 (ja) | 2022-01-13 |
| CN115735073A (zh) | 2023-03-03 |
| EP4177487A4 (en) | 2024-07-24 |
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