EP2179138A2 - Verdrängermaschine nach dem spiralprinzip mit beidseitiger lageranordnung - Google Patents
Verdrängermaschine nach dem spiralprinzip mit beidseitiger lageranordnungInfo
- Publication number
- EP2179138A2 EP2179138A2 EP08757302A EP08757302A EP2179138A2 EP 2179138 A2 EP2179138 A2 EP 2179138A2 EP 08757302 A EP08757302 A EP 08757302A EP 08757302 A EP08757302 A EP 08757302A EP 2179138 A2 EP2179138 A2 EP 2179138A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- drive shaft
- bearing
- housing
- drive
- displacement machine
- 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.)
- Granted
Links
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 30
- 125000006850 spacer group Chemical group 0.000 description 6
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/02—Arrangements of 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
- 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
- F04C18/0223—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 with symmetrical double wraps
-
- 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
- F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
- F04C27/008—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids for other than working fluid, i.e. the sealing arrangements are not between working chambers of the machine
- F04C27/009—Shaft sealings specially adapted for pumps
-
- 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
- F04C29/0021—Systems for the equilibration of forces acting on the pump
-
- 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
- F04C29/02—Lubrication; Lubricant separation
-
- 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
- F04C2240/52—Bearings for assemblies with supports on both sides
-
- 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
- F04C2240/60—Shafts
- F04C2240/601—Shaft flexion
Definitions
- the present invention relates to a displacement machine for compressible media according to the preamble of claim 1.
- Displacement machines of this type are known, for example, from DE-A-33 13 000 and EP-A-0 371 305 and have a housing consisting of two halves, in which a displacement body is arranged.
- the displacer is mounted by means of a bearing on an eccentric disc, which is connected to a drivable drive shaft.
- the drive shaft is mounted in the housing by means of two bearings, which are opposite to each other with respect to the eccentric disk. Between each bearing and the eccentric disc each one connected to the drive shaft counterweight is arranged.
- the drive shaft extending through the housing wall on its drive side carries a drive disk on its drive-side end which is connected to a drive.
- a compressor operating according to this principle is distinguished by a low-pulsation delivery of the gaseous working medium, eg air, and could therefore be used with advantage inter alia for charging purposes in internal combustion engines.
- the counterweights are arranged very close to the eccentric disc in the aforementioned known displacement machines. With regard to the arrangement of the bearing is that the distance between that bearing, which is with respect to the eccentric disc on the side of the drive pulley, and this drive pulley must not be too large, otherwise there is a risk of deflection of the drive shaft during operation.
- the present invention is based on the object to provide a positive displacement machine of the type mentioned, in which the lying outside the housing drive member can also be arranged relatively far from the housing without the drive shaft deflects too much during operation, even at high speeds Not.
- the small distance between the first and second bearing and the support of the drive shaft at its projecting from the housing, drive end by means of another bearing allows the distance between the drive member and that bearing inside the housing, with respect to the eccentric disc on the side of Drive organ is more free to choose.
- FIG. 1 is a front view of the drive-side housing part of a positive displacement machine
- FIG. 2 shows the displacement machine according to FIG. 1 in a longitudinal section along the line II-II in FIG. 1, FIG.
- Fig. 3 is a section along the line V-V in Fig. 2nd
- the displacement machine shown in FIGS. 1 and 2 in front view or in section has a housing 1 consisting of two housing halves 1a, 1b, in which a displacement body 2 is mounted.
- the two housing halves Ia, Ib are bolted together in a manner not shown.
- the one housing half Ia (Fig. 2) is removed.
- the displacement body 2 has a disc 3, which carries on each side a spiraling displacement element 4, 5.
- the displacement elements 4, 5 are formed as protruding from the disc 3 strips.
- a drive shaft 6 is provided, whose axis of rotation is denoted by 6a.
- the drive shaft 6 is mounted in the housing halves 1 a, 1 b by means of a first bearing 7 and a second bearing 8 and has an eccentric disk 9 whose axis of symmetry is designated by 9 a.
- the distance between the axis of rotation 6a of the drive shaft 6 and the axis of symmetry 9a of the eccentric disc 9 (eccentricity) is designated e in FIG.
- a hub bearing 10 which is a rolling bearing in the present case, the hub 11 of Disc 3 stored.
- the disk 3 and thus the displacer 2 are driven via the drive shaft 6 and the eccentric disk 9.
- the driving force is transmitted via the hub bearing 10 to the hub 11 of the disk 3.
- the guide of the displacement body 2 via a rocker 12 which is rotatably mounted at one end on a shaft 13 (Fig. 1).
- the rocker 12 carries a bolt 14 which is rotatably mounted in an eye 15 of the disc 3.
- the housing 1 has an inlet 16 and an outlet 17 for the conveying medium, preferably air, as well as two delivery chambers 18, 18 '.
- a passage 19 (or more passages) is present, through which the fluid can pass from the pumping chamber 18 into the delivery chamber 18 '.
- two counterweights 20, 21 are arranged, which are as close as possible to the eccentric 9 zoom zoomed so that during operation a deflection of the drive shaft 6 is kept as small as possible or even prevented.
- the distance between the bearings 7 and 8 and the respective adjacent counterweight 20 and 21 and thus also the distance between the bearings 7, 8 and the eccentric disc 9 is also kept as small as possible, which further contributes to a deflection of the drive shaft. 6 to keep small in operation or prevent.
- the drive shaft 6 extends with respect to the eccentric disk 9 on the side of the second bearing 8 through the wall 22 of the housing part Ib and carries at its protruding from the housing 1 end a drive pulley 23.
- the arranged on the outside of the housing 1 drive pulley 23rd is in a manner not shown, for example by means of a drive belt, connected to a drive, not shown.
- the drive shaft 6 is supported on its drive-side, the drive disk 23 bearing end by means of a third bearing 24, which is preferably a roller bearing, in particular a ball bearing.
- the third bearing 24 is seated in the region of the drive pulley 23 on the drive shaft 6, preferably approximately in the center plane of the drive pulley 23 in order to minimize the influence of the clamping force of a driven over the drive pulley 23 drive belt (not shown) to the deflection of the drive shaft 6 or to eliminate.
- the third bearing 24 is held in a projecting in the direction of the axis 6a of the drive shaft 6 from the housing 1 support member 25 which is integral with the housing part Ib in the illustrated embodiment.
- the support member 25 may also be formed as a separate from the housing 1 component which is fixed to the housing 1.
- the third bearing 24 is formed in the embodiment shown as a thrust bearing, which serves for the axial alignment of the drive shaft 6 in the housing 1.
- the outer ring 24a of the third bearing 24 is in the axial direction in the support member 25th supported and secured by means of a retaining ring 26.
- the inner ring 24b of the third bearing 24 is located between a pushed onto the drive shaft 6 spacer sleeve 27 which abuts a formed on the drive shaft 6 shoulder 28, and the hub 23a of the drive pulley 23.
- the spacer sleeve 27, the inner ring 24b of the third bearing 24 and the hub 23a of the drive disk 23 are braced against the shoulder 28 by means of a screw nut 30 screwed onto a thread 29 at the end of the drive shaft 6.
- the third bearing 24 is grease lubricated as shown in FIG.
- constructive means ensure that the same pressure, namely the ambient pressure, prevails on both sides of the third bearing 24.
- a passage 31 is formed in the support member 25, which connects the space on the side of the third bearing 24, which faces the spacer sleeve 27, with the environment.
- the pressure prevailing in this environment affects both the first side facing the spacer sleeve 27 as well as on the second side of the third bearing 24 opposite this first side in the axial direction.
- an "indirect” third bearing can also be used, namely when a magnetic coupling is plugged rotationally fixed onto the eccentric shaft at its drive end
- the shaft of the magnetic coupling is then supported by a bearing in the housing of the magnetic coupling, which in turn is supported on the housing half 1a of the displacement machine, the shaft then being supported within the housing 1 only by means of the two bearings 7, 8, while the "third" Bearing part is the coaxial, rotatably connected to the eccentric shaft drive shaft.
- a labyrinth seal 32 is arranged in the region of the passage of the drive shaft 6 through the wall 22 of the housing 1.
- This consists of two in the longitudinal direction of the drive shaft 6 successively arranged throttle bodies 33, 34.
- Each throttle 33, 34 has a stationary seal member 35 which engages in a groove 36 in the co-rotating with the drive shaft 6 spacer sleeve 27.
- the sealing members 35 are preferably formed by piston rings and are held under bias in the support member 25.
- In the space between the throttle points 33, 34 opens a connecting line 37, which opens into the inlet 16 at the other end.
- This connecting line 37 thus connects the inlet 16 with the space between the throttling points 33, 34.
- the second bearing 8 for the drive shaft 6 is also grease lubricated, taking care that the second bearing 8 does not dry out during operation.
- appropriate structural measures are taken so that on both sides of the second bearing 8, the same pressure prevails.
- the counterweight 21 facing first side of the second bearing 8 is acted upon by the pressure in the delivery chamber 18. So that the same pressure also prevails on the other, second side of the second bearing 8, a connecting line 38 is provided which connects the delivery chamber 18 with this other, second side of the second bearing 8.
- Both the first bearing 7 for the drive shaft 6 and the hub bearing 10 for the eccentric disc 9 are lubricated in a manner not shown with a liquid lubricant, preferably lubricating oil.
- the bearings 7 and 10 are sealed by means of annular sealing elements 39 with respect to the delivery chambers 18, 18 '.
- each counterweight 20, 21 is formed by a fixing member 46 non-rotatably connected to the drive shaft 6 and a mass member 47 integral with the fixing member 46.
- the fastening part 46 of each counterweight 20, 21 has as small a dimension as possible in the axial direction, which makes it possible to bring the first and second bearings 7 and 8 as close as possible to the eccentric disk 9. With this measure, the deflection of the drive shaft 6 during operation can be virtually prevented.
- the inner radius R of the attachment part 46 (FIG. 3) is dimensioned such that it is greater than the radial dimension of the hub 11 of the disc 3 and 3 denoted by D in FIG also larger than the outer diameter of the bearing receptacles 48a, 48b.
- the dimension of the mass portion 47 of each counterweight 20, 21 can therefore be selected in the axial direction greater than the axial dimension of the fastening part 46. This makes it possible to arrange the fastening part 46 very close to the eccentric disc 9 and the hub 11 and still have a certain freedom in the design of the mass member 47.
- the size of the mass balance effected by the counterweights 20, 21 can be determined by a suitable dimensioning of the mass parts 47.
- the counterweights have a T-shaped cross section, wherein the crossbars represent the actual mass parts 47 and are configured so that they laterally cover, at least partially, both the hub 11 and the bearing receivers 48a, 48b.
- the displacement machines shown in the figures and described above are particularly suitable as superchargers for internal combustion engines.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Rolling Contact Bearings (AREA)
- Screw Conveyors (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH11962007 | 2007-07-26 | ||
| PCT/CH2008/000310 WO2009012606A2 (de) | 2007-07-26 | 2008-07-10 | Verdrängermaschine nach dem spiralprinzip mit beidseitiger lageranordnung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2179138A2 true EP2179138A2 (de) | 2010-04-28 |
| EP2179138B1 EP2179138B1 (de) | 2015-09-09 |
Family
ID=39963419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP08757302.8A Not-in-force EP2179138B1 (de) | 2007-07-26 | 2008-07-10 | Verdrängermaschine nach dem spiralprinzip mit beidseitiger lageranordnung |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US8529233B2 (de) |
| EP (1) | EP2179138B1 (de) |
| CN (1) | CN101765700B (de) |
| WO (1) | WO2009012606A2 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011103165A1 (de) * | 2010-07-02 | 2012-01-05 | Handtmann Systemtechnik Gmbh & Co. Kg | Ladevorrichtung zur Verdichtung von Ladeluft für einen Verbrennungsmotor |
| CN101947812B (zh) * | 2010-09-09 | 2012-05-30 | 太原重工股份有限公司 | 炭素挤压机挤压杆的支承辊装置 |
| US11055952B2 (en) | 2019-03-18 | 2021-07-06 | Igt | Gaming system and method providing free activations with pattern matching feature |
| US12567302B2 (en) | 2023-05-09 | 2026-03-03 | Igt | Independently randomly determined symbol pattern set associated with symbol display positions |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3231756C2 (de) * | 1982-08-26 | 1985-08-01 | Pierburg Gmbh & Co Kg, 4040 Neuss | Rotationskolbenmaschine für Fluide |
| DE3313000A1 (de) * | 1983-04-12 | 1984-10-18 | Volkswagenwerk Ag, 3180 Wolfsburg | Verdraengermaschine fuer kompressible medien |
| JPH0680317B2 (ja) * | 1985-03-20 | 1994-10-12 | トキコ株式会社 | 無給油式スクロ−ル圧縮機 |
| CH667497A5 (de) * | 1985-04-26 | 1988-10-14 | Bbc Brown Boveri & Cie | Rotationskolben-verdraengungsarbeitsmaschine. |
| KR920006046B1 (ko) * | 1988-04-11 | 1992-07-27 | 가부시기가이샤 히다찌세이사꾸쇼 | 스크롤 콤프레서 |
| DE58905683D1 (de) * | 1988-11-30 | 1993-10-28 | Asea Brown Boveri | Exzenterwelle mit Gegengewicht. |
| EP0807759B1 (de) * | 1990-02-13 | 2001-07-04 | Anest Iwata Corporation | Spiralverdrängungsmaschine |
| DE4205541A1 (de) * | 1992-02-24 | 1993-08-26 | Asea Brown Boveri | Verdraengermaschine nach dem spiralprinzip |
| JPH05296168A (ja) * | 1992-04-17 | 1993-11-09 | Hitachi Ltd | スクロール圧縮機 |
| ES2164398T3 (es) * | 1997-08-26 | 2002-02-16 | Crt Common Rail Tech Ag | Maquinas de desplazamiento espiral para medios compresibles. |
| WO2000049275A1 (de) * | 1999-02-18 | 2000-08-24 | Fritz Spinnler | Verdrängermaschine nach dem spiralprinzip |
-
2008
- 2008-07-10 CN CN2008801001964A patent/CN101765700B/zh not_active Expired - Fee Related
- 2008-07-10 WO PCT/CH2008/000310 patent/WO2009012606A2/de not_active Ceased
- 2008-07-10 EP EP08757302.8A patent/EP2179138B1/de not_active Not-in-force
-
2010
- 2010-01-15 US US12/688,142 patent/US8529233B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2009012606A2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2179138B1 (de) | 2015-09-09 |
| CN101765700A (zh) | 2010-06-30 |
| WO2009012606A3 (de) | 2009-05-28 |
| CN101765700B (zh) | 2012-03-21 |
| WO2009012606A2 (de) | 2009-01-29 |
| US20100183466A1 (en) | 2010-07-22 |
| US8529233B2 (en) | 2013-09-10 |
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