EP0852294A2 - Compresseur à plateau en biais à capacité variable et procédé de traitement de surface du plateau - Google Patents

Compresseur à plateau en biais à capacité variable et procédé de traitement de surface du plateau Download PDF

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Publication number
EP0852294A2
EP0852294A2 EP98300061A EP98300061A EP0852294A2 EP 0852294 A2 EP0852294 A2 EP 0852294A2 EP 98300061 A EP98300061 A EP 98300061A EP 98300061 A EP98300061 A EP 98300061A EP 0852294 A2 EP0852294 A2 EP 0852294A2
Authority
EP
European Patent Office
Prior art keywords
swash plate
rotary member
protruding portion
drive shaft
central
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.)
Withdrawn
Application number
EP98300061A
Other languages
German (de)
English (en)
Other versions
EP0852294A3 (fr
Inventor
Hiroshi c/o Zexel Corp. Kounan-works Tokumasu
Tadashi c/o Zexel Corp. Kounan-works Saito
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Thermal Systems Japan Corp
Original Assignee
Zexel Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zexel Corp filed Critical Zexel Corp
Publication of EP0852294A2 publication Critical patent/EP0852294A2/fr
Publication of EP0852294A3 publication Critical patent/EP0852294A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/0804—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
    • F04B27/0821—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block component parts, details, e.g. valves, sealings, lubrication
    • F04B27/086—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block component parts, details, e.g. valves, sealings, lubrication swash plate
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/28—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases more than one element being applied in one step
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/0873—Component parts, e.g. sealings; Manufacturing or assembly thereof
    • F04B27/0878—Pistons
    • F04B27/0882—Pistons piston shoe retaining means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/0873—Component parts, e.g. sealings; Manufacturing or assembly thereof
    • F04B27/0878—Pistons
    • F04B27/0886—Piston shoes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/10—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F04B27/1036—Component parts, details, e.g. sealings, lubrication
    • F04B27/1054—Actuating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2210/00—Working fluid
    • F05B2210/10—Kind or type
    • F05B2210/14—Refrigerants with particular properties, e.g. HFC-134a
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2230/00—Manufacture
    • F05B2230/40—Heat treatment
    • F05B2230/41—Hardening; Annealing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2230/00—Manufacture
    • F05B2230/90—Coating; Surface treatment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/02—Light metals
    • F05C2201/025—Boron
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/04—Heavy metals
    • F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
    • F05C2201/0466—Nickel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/90—Alloys not otherwise provided for
    • F05C2201/906—Phosphor-bronze alloy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2253/00—Other material characteristics; Treatment of material
    • F05C2253/12—Coating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00—Pumps

Definitions

  • This invention relates to a variable capacity swash plate compressor and a method of surface treatment of a swash plate of the variable capacity swash plate compressor.
  • a shaft has a thrust flange rigidly fitted on a front-side portion thereof for transmitting torque of the shaft to the swash plate.
  • the thrust flange is rotatably supported on an inner wall of the front head by a thrust bearing.
  • the thrust flange and the swash plate are connected by a linkage.
  • the swash plate is tiltable with respect to a plane perpendicular to the shaft.
  • the swash plate is slidably and tiltably fitted on the shaft.
  • a shoe for slidably supporting one end of a connecting rod is retained on a sliding surface of the swash plate by a retainer.
  • the connecting rod has the other end thereof secured to a piston.
  • the linkage is comprised of a bracket formed on a front-side surface of the swash plate, a linear guide slot formed in the bracket, and a rod screwed into the thrust flange. A spherical end portion of the rod is engaged with the guide slot in a manner relatively slidable with respect to the guide slot.
  • the shaft, the swash plate including the bracket, and the rod are each formed of a ferrous material.
  • Torque of an engine installed on an automotive vehicle is transmitted to the shaft.
  • Torque of the shaft is transmitted to the swash plate via the thrust flange and the linkage to cause rotation of the swash plate.
  • the rotation of the swash plate causes relative rotation of the shoe on the sliding surface of the swash plate with respect to the swash plate, whereby the torque transmitted from the swash plate is converted into reciprocating motion of the piston.
  • the piston reciprocates within a cylinder bore, the volume of space within the cylinder bore changes, whereby suction, compression and delivery of refrigerant gas are carried out sequentially.
  • the inclination of the swash plate varies with pressure in a crankcase in which the swash plate is received, and high pressure refrigerant gas is discharged in an amount corresponding to an angle of the inclination of the swash plate.
  • variable capacity swash plate compressor constructed as above, when the compressor is in operation, the shoe slides on the sliding surface of the swash plate (relatively rotates with respect to the swash plate), an inner peripheral surface of the swash plate slides on a peripheral surface of the shaft, and the spherical end portion of the rod slides in the guide slot (relatively slides).
  • sliding surfaces of a swash plate are coated with a bronze-based material by thermal spraying, or with molybdenum disulfide (MoS2) by application, or the whole swash plate is subjected to quenching/tempering.
  • MoS2 molybdenum disulfide
  • the above treatment methods suffer from the problem that hardness of the treated surfaces of the swash plate is increased to a large extent, so that when polishing is carried out as required for correcting distortions of the surfaces of the swash plate caused by such heat treatment, polishing tools badly wear in the polishing operation.
  • a variable capacity swash plate compressor including a cylinder having a central through hole and at least one cylinder bore formed about the central through hole, a drive shaft rotatably arranged in the central through hole, a rotary member rigidly fitted on the drive shaft for rotation in unison with the drive shaft, a swash plate slidably and tiltably fitted on the drive shaft, the swash plate having a sliding surface, a linkage connecting the rotary member and the swash plate in a manner such that the swash plate rotates in unison with the rotary member as the rotary member rotates, at least one shoe performing relative rotation on the sliding surface of the swash plate with respect to the swash plate, and at least one piston connected to the swash plate via a corresponding one of the at least one shoe, each of the at least one piston reciprocating within a corresponding one of the at least one cylinder bore as the swash plate rotates, wherein the
  • variable capacity swash plate compressor according to the first aspect of the invention is characterized in that the swash plate including the protruding portion is subjected to surface treatment by gas sulphonitriding.
  • the swash plate including the protruding portion is subjected to the surface treatment by gas sulphonitriding. Therefore, the surfaces of the swash plate including the protruding portion are improved in wear resistance through hardening, and at the same time enhanced in lubricity.
  • variable capacity swash plate compressor which is characterized in that the swash plate including the protruding portion is subjected to surface treatment by electroless nickel-phosphorus-boron plating.
  • the swash plate including the protruding portion is subjected to the surface treatment by electroless nickel-phosphorus-boron plating. Therefore, the surfaces of the swash plate including the protruding portion are improved in wear resistance through hardening, and at the same time enhanced in lubricity.
  • a nickel-based coating formed on the swash plate including the protruding portion by the electroless nickel-phosphorus-boron plating contains 0.5 to 3.0 wt% of phosphorus and 0.05 to 2.0% of boron.
  • a method of surface treatment of a swash plate of a variable capacity swash plate compressor including a cylinder having a central through hole and at least one cylinder bore formed about the central through hole, a drive shaft rotatably arranged in the central through hole, a rotary member rigidly fitted on the drive shaft for rotation in unison with the drive shaft, the swash plate slidably and tiltably fitted on the drive shaft, the swash plate having a sliding surface, a linkage connecting the rotary member and the swash plate in a manner such that the swash plate rotates in unison with the rotary member as the rotary member rotates, at least one shoe performing relative rotation on the sliding surface of the swash plate with respect to the swash plate, and at least one piston connected to the swash plate via a corresponding one of the at least one shoe, each of the at least one piston reciprocating within a corresponding one of the at least one cylinder bore as
  • the method according to the third aspect of the invention is characterized in that the surface treatment of the swash plate including the protruding portion is carried out by gas sulphonitriding.
  • a method of surface treatment of a swash plate of a variable capacity swash plate compressor which is characterized in that the surface treatment of the swash plate including the protruding portion is carried out by electroless nickel-phosphorus-boron plating.
  • This method provides the same advantageous effects as obtained by the method according to the third embodiment.
  • FIG. 1 shows the whole arrangement of a variable capacity swash plate compressor according to a first embodiment of the invention.
  • the variable capacity swash plate compressor has a cylinder block 1 having one end thereof secured to a rear head 3 via a valve plate 2 and the other end thereof secured to a front head 4.
  • the cylinder block 1 has a plurality of cylinder bores 6 axially formed therethrough at predetermined circumferential intervals about a shaft 5 arranged in a central through hole axially formed in the center of the cylinder block 1.
  • Each cylinder bore 6 has a piston 7 slidably received therein.
  • crankcase 8 Within the front head 4, there is formed a crankcase 8.
  • the crankcase 8 has a swash plate 10 received therein.
  • the swash plate 10 is slidably and tiltably fitted on the shaft 5.
  • the swash plate 10 is connected to the piston 7 via shoes 50, 50.
  • the shoes 50, 50 are arranged in a manner sandwiching the swash plate 10, with plane surfaces 50b, 50b thereof held in contact with sliding surfaces 10a, 10c of the swash plate 10, respectively.
  • the piston 7 has one end portion 7a thereof formed with a recess 51 in which is received a peripheral portion of the swash plate 10.
  • the recess 51 has concave portions 51a, 51b formed in respective inner surfaces thereof in a manner opposed to each other in a direction of a movement of the piston 7.
  • Hemispherical portions 50a, 50a of the shoes 50, 50 are slidably supported or received in the concave portions 51a, 51b, respectively.
  • a capacity control valve 32 is arranged in an intermediate portion of the communication passage, for controlling the pressure in the crankcase 8.
  • the valve plate 2 is formed with refrigerant outlet ports 16 for respectively communicating between the cylinder bores 6 and the discharge chamber 12, and refrigerant inlet ports 15 for respectively communicating between the cylinder bores 6 and the suction chamber 13.
  • the refrigerant outlet ports 16 and the refrigerant inlet ports 15 are arranged at predetermined circumferential intervals about the shaft 5, respectively.
  • Each refrigerant outlet port 16 is opened and closed by a discharge valve 17.
  • the discharge valve 17 is fixed to the valve plate 2 on the rear head side by a bolt 19 and a nut 20 together with a valve stopper 18.
  • each refrigerant inlet port 15 is opened and closed by a suction valve 21 arranged between the valve plate 2 and the cylinder block 1.
  • the bolt 19 has a guide hole 19a formed therethrough for guiding high-pressure refrigerant gas from the discharge chamber 12 to a radial bearing 24 and a thrust bearing 25.
  • the radial bearing 24 and the thrust bearing 25 support a rear-side end of the shaft 5, while a radial bearing 26 rotatably supports a front-side end of the shaft 5.
  • the shaft 5 has a thrust flange 40 rigidly fitted on a front-side portion thereof for transmitting torque of the shaft 5 to the swash plate 10.
  • the thrust flange 40 is supported on an inner wall of the front head 4 by a thrust bearing 33.
  • the thrust flange 40 and the swash plate 10 are connected by a linkage 41.
  • the swash plate 10 is tiltable with respect to a plane perpendicular to the shaft 5.
  • the linkage 41 is comprised of a bracket (protruding portion) 10e formed on the sliding surface (front-side surface) 10c of the swash plate 10, a linear guide slot 10f formed in the bracket 10e, and a rod 43 screwed into a swash plate-side surface 40a of the thrust flange 40.
  • the longitudinal axis of the guide slot 10f is tilted through a predetermined angle with respect to the front-side surface 10c of the swash plate 10.
  • a spherical end portion 43a of the rod 43 is relatively slidably engaged with the guide slot 10f.
  • the shaft 5, the swash plate 10 including the bracket 10e, the thrust flange 40, the rod 43 and the shoes 50 are each formed of a ferrous material.
  • the swash plate 10 including the bracket 10e is subjected to surface treatment by gas sulphonitriding (multinite nitrocarburizing) or electroless nickel-phosphorus-boron plating.
  • Gas sulphonitriding is a method of diffusing nitrogen and sulfur into a surface of steel within an atmosphere of nitrogen gas N2 containing sulfur S, by using ammonia NH 3 and an X gas (sulfurizing element gas) comprising a slight amount of sulphur S.
  • Electroless nickel-phosphorus-boron plating is a method of forming a nickel-based coating containing e.g. 0.5 to 3.0 wt% of phosphorus and 0.05 to 2.0 wt% of boron by electroless plating. The methods are both capable of improving wear resistance or lubricity of the swash plate 10 including the bracket 10e.
  • variable capacity swash plate compressor constructed as above
  • Torque of an engine, not shown, installed on an automotive vehicle, not shown, is transmitted to the shaft 5. Torque of the shaft 5 is transmitted from the thrust flange 40 to the swash plate 10 via the linkage 41 to cause rotation of the swash plate 10.
  • the rotation of the swash plate 10 causes relative rotation of the shoes 50 on the sliding surfaces 10a, 10c of the swash plate 10 with respect to the swash plate 10, whereby the torque transmitted from the swash plate 10 is converted into reciprocating motion of the piston 7.
  • the volume of space (compression chamber) within the cylinder bore 6 changes, whereby, suction, compression and delivery of refrigerant gas are carried out sequentially, to discharge high-pressure refrigerant gas in an amount corresponding to an angle of inclination of the swash plate 10.
  • the suction valve 21 opens, whereby low-pressure refrigerant gas is drawn from the suction chamber 13 into the compression chamber within the cylinder bore 6.
  • the discharge valve 17 opens, whereby high-pressure refrigerant gas is delivered from the compression chamber to the discharge chamber 12.
  • the capacity control valve 32 closes the communication passage, whereby the pressure within the crankcase 8 is increased. As a result, the angle of inclination of the swash plate becomes smaller, which decreases the stroke of the piston 7 to thereby reduce the delivery quantity or capacity of the compressor.
  • the capacity control valve 32 opens the communication passage, whereby the pressure within the crankcase 8 is decreased.
  • the angle of inclination of the swash plate becomes larger, which increases the stroke of the piston 7 to thereby increase the delivery quantity or capacity of the compressor.
  • the shoes 50 slide on the sliding surfaces 10a, 10c of the swash plate 10 (relatively rotate with respect to the swash plate), respectively, an inner peripheral surface of a central through hole 10g formed through the swash plate 10 slides on an outer peripheral surface of the shaft 5, and the spherical end portion 43a of the rod 43 slides (relative slides) in the guide slot 10f.
  • the swash plate 10 including the bracket 10e is subjected to surface treatment by gas sulphonitriding or electroless nickel-phosphorus-boron plating, so that the surface of the swash plate 10 including the bracket 10e is improved in wear resistance through hardening, and at the same time enhanced in lubricity.
  • the surface treatment of the swash plate 10 including the bracket 10e by gas sulphonitriding or electroless nickel-phosphorus-boron plating it is possible to treat the sliding surfaces 10a, 10c, the inner surface of the central through hole 10g, and the bracket 10e, in a single operation, and what is more, uniform coating can be provided all over the swash plate 10 even if the plate 10 has a complicated shape.
  • the surface treatment is carried out at a sufficiently low temperature, which causes almost no or only slight distortion of the sliding surfaces of the swash plate 10. Therefore, no polishing operation is required after the surface treatment, which facilitates the surface-treating process.
  • the swash plate is not required to be formed by a plurality of separate component parts, which contributes to reduction of manufacturing costs of the compressor.
  • FIG. 2 shows the whole arrangement of a variable capacity swash plate compressor according to a second embodiment of the invention. Component parts and elements corresponding to those of the first embodiment are indicated by identical reference numerals, and description thereof is omitted.
  • the present invention is applied to a type of variable capacity swash plate compressor in which the pair of shoes 50, 50 are arranged in a manner sandwiching the swash plate 10 and supported directly in one end portion 7a of the piston 7, while in the second embodiment shown in FIG. 2, the invention is applied to a type of variable capacity swash plate compressor in which a connecting rod 11 is provided which connects a shoe 150 and a piston 107.
  • a swash plate 110 is slidably and tiltably fitted on a shaft 5.
  • a shoe 150 which slidably supports one end 11a, spherical in shape, of a corresponding one of connecting rods 111, is retained on a sliding surface 10a of the swash plate 10 by a retainer 53.
  • the retainer 53 is mounted on a boss 10b of the swash plate 10 in a manner supported by a lock plate 55 fixed to the boss 10b by a stopper 54.
  • the connecting rod 11 has the other end 11b thereof connected to the piston 7.
  • the shoe 150 is comprised of a shoe body 151 slidably supporting a front-side surface of the one end lla of the connecting rod 11 and a washer 152 for slidably supporting or retaining a rear-side surface of the one end 11a of the same.
  • the swash plate 110 including the bracket 10e is subjected to surface treatment by gas sulphonitriding or electroless nickel-phosphorus-boron plating, similarly to the first embodiment.
  • variable capacity swash plate compressor according to the second embodiment The basic operation of the FIG. 2 variable capacity swash plate compressor according to the second embodiment is identical to that of the FIG. 1 compressor according to the second embodiment, and the former provides the same effects as obtained by the latter.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Chemically Coating (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
EP98300061A 1997-01-07 1998-01-06 Compresseur à plateau en biais à capacité variable et procédé de traitement de surface du plateau Withdrawn EP0852294A3 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP12043/97 1997-01-07
JP9012043A JPH10196531A (ja) 1997-01-07 1997-01-07 可変容量型斜板式圧縮機及びその表面処理方法
JP1204397 1997-01-07

Publications (2)

Publication Number Publication Date
EP0852294A2 true EP0852294A2 (fr) 1998-07-08
EP0852294A3 EP0852294A3 (fr) 1999-06-09

Family

ID=11794580

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98300061A Withdrawn EP0852294A3 (fr) 1997-01-07 1998-01-06 Compresseur à plateau en biais à capacité variable et procédé de traitement de surface du plateau

Country Status (3)

Country Link
EP (1) EP0852294A3 (fr)
JP (1) JPH10196531A (fr)
KR (1) KR19980070242A (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002095228A1 (fr) * 2001-05-23 2002-11-28 Luk Fahrzeug-Hydraulik Gmbh & Co. Kg Compresseur
EP1251274A3 (fr) * 2001-04-20 2004-12-22 Kabushiki Kaisha Toyota Jidoshokki Plateau en biais pour un compresseur
CN103352829A (zh) * 2013-06-24 2013-10-16 江苏盈科汽车空调有限公司 一种一体式摇摆斜盘
CN103452804A (zh) * 2013-06-24 2013-12-18 江苏盈科汽车空调有限公司 一种汽车空调压缩机斜盘部件
CN103452803A (zh) * 2013-06-24 2013-12-18 江苏盈科汽车空调有限公司 一种汽车空调压缩机斜盘部件的生产方法
CN112553568A (zh) * 2019-09-25 2021-03-26 丹佛斯有限公司 用于制造水压机器的方法

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EP1251274A3 (fr) * 2001-04-20 2004-12-22 Kabushiki Kaisha Toyota Jidoshokki Plateau en biais pour un compresseur
WO2002095228A1 (fr) * 2001-05-23 2002-11-28 Luk Fahrzeug-Hydraulik Gmbh & Co. Kg Compresseur
FR2825121A1 (fr) * 2001-05-23 2002-11-29 Luk Fahrzeug Hydraulik Compresseur
US7258531B2 (en) 2001-05-23 2007-08-21 Luk Fahrzeug-Hydraulik Gmbh & Co. Kg Axial piston compressor
DE10222349B4 (de) * 2001-05-23 2013-08-08 Ixetic Bad Homburg Gmbh Axialkolbenyerdichter mit Lagerung der Antriebswelle im Zylinderkopf
CN103352829A (zh) * 2013-06-24 2013-10-16 江苏盈科汽车空调有限公司 一种一体式摇摆斜盘
CN103452804A (zh) * 2013-06-24 2013-12-18 江苏盈科汽车空调有限公司 一种汽车空调压缩机斜盘部件
CN103452803A (zh) * 2013-06-24 2013-12-18 江苏盈科汽车空调有限公司 一种汽车空调压缩机斜盘部件的生产方法
CN103452804B (zh) * 2013-06-24 2015-12-09 江苏盈科汽车空调有限公司 一种汽车空调压缩机斜盘部件
CN112553568A (zh) * 2019-09-25 2021-03-26 丹佛斯有限公司 用于制造水压机器的方法
ES2820199A1 (es) * 2019-09-25 2021-04-19 Danfoss As Método para producir una máquina hidráulica de agua
US12584470B2 (en) 2019-09-25 2026-03-24 Danfoss A/S Method for producing a water-hydraulic machine

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JPH10196531A (ja) 1998-07-31
EP0852294A3 (fr) 1999-06-09
KR19980070242A (ko) 1998-10-26

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