EP0842363A2 - Spiralverdichter, insbesondere zum einsatz bei der drucklufterzeugung für schienenfahrzeuge - Google Patents
Spiralverdichter, insbesondere zum einsatz bei der drucklufterzeugung für schienenfahrzeugeInfo
- Publication number
- EP0842363A2 EP0842363A2 EP96925640A EP96925640A EP0842363A2 EP 0842363 A2 EP0842363 A2 EP 0842363A2 EP 96925640 A EP96925640 A EP 96925640A EP 96925640 A EP96925640 A EP 96925640A EP 0842363 A2 EP0842363 A2 EP 0842363A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- spiral
- spirals
- scroll compressor
- pressure
- compressor according
- 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
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
- F01C17/00—Arrangements for drive of co-operating members, e.g. for rotary piston and casing
- F01C17/06—Arrangements for drive of co-operating members, e.g. for rotary piston and casing using cranks, universal joints or similar elements
-
- 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
- F04C18/023—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 both members are moving
-
- 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
- F04C27/005—Axial sealings for working fluid
Definitions
- Spiral compressor in particular for use in compressed air generation for rail vehicles
- the invention relates to a scroll compressor according to the preamble of claim 1.
- the object of the invention is to design a preferably completely oil-free scroll compressor with a one-sided scroll arrangement with a large intake volume flow and also with large compression ratios so that the aforementioned problems of high axial forces are taken into account; in particular, in spite of the required volume and compression sizes, the compressor should be able to run free of high axial forces and thus be as wear-free as possible.
- the pressure chambers fed by the compression pockets of the scroll compressor create in a very simple manner a device by means of which the very high axial forces acting on the bearings can be counteracted; it is therefore possible to compensate for these axial forces.
- the function of the pressure chambers is ensured in particular with dry running properties of the seals delimiting the pressure chambers, since there is only a low relative speed between the spirals, that is to say also in the region of the pressure ring and the annular disk forming the pressure chambers with the pressure ring.
- the drawing shows a scroll compressor 1 provided with a one-sided scroll arrangement, which has an arrangement according to the invention for compensating for the high compressors acting against the bearings of the compressor Has axial forces.
- the scroll compressor 1 is provided with a housing 3 in which two interlocking spirals run, namely a spiral 7 driven by a shaft 5 and a spiral 9 dragged by the spiral 7.
- the two spirals each perform a pure rotational movement; due to the purely rotary movement of the spirals, no unbalance forces occur, provided the spirals are balanced in each case.
- the relative movement of the two spirals to one another which is required for a compression effect, is generated by the axes of rotation 11 and 13 of both spirals being at a certain distance from one another. Furthermore, the dragged spiral 9 is encompassed by a pressure ring 15, which is screwed to the driven spiral 7 (via fastening means, not shown) or is connected in some other way.
- an "anti-rotation mechanism” acts in the form of a forced guidance between the two spirals, which consists, for example, of three of the towed ones Spiral 9 carried support rollers 17, which run at the same angular distance from each other holes 19 in the pressure ring 15. Accordingly, three support rollers arranged at an angular distance of 120 ° from each other are assigned to three bores 19 arranged at the same angular distance from one another.
- the driven shaft 5 of the spiral 7 runs in a bearing 29, while the shaft 31 of the trailed spiral 9 runs in a bearing 33.
- a device for axial force compensation is provided according to the invention. This device consists of pressure chambers 35, which are provided between the inside of the pressure ring 5 and an annular disk 37 attached to the rear of the spiral 9.
- the pressure chambers 35 are the very low volumes which each exist between the annular disk 37 and the facing inner surface of the pressure ring 15.
- the size and shape of the pressure chambers is determined by dry-running seals 39, which seal the pressure chambers against outside air, ie against the outside air volume between cooling air inlet 40 and cooling air outlet 41 of the spiral 9.
- three pressure chambers 35 are provided between the bores 19 at the same angular distance of 120 ° to one another, each of which is supplied with compressed air from the compression pockets 45 of the spirals via bores 43.
- a pressure builds up in these due to the pressure supply of the pressure chambers 35 described above, which presses the two scrolls towards one another, since the pressure ring 15 is connected to the scroll 7 and the annular disk 37 in the rear region of the scroll 9 thereof is carried, for example, by radial spiral ribs 47 connected to the spiral 9 or by the bearing journals of the support rollers 17, which penetrate the annular disc 37 at an angular distance from one another, as can be seen in the upper section of the drawing.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
Description
Claims
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19528005 | 1995-07-31 | ||
DE19528005 | 1995-07-31 | ||
DE19604447 | 1996-02-07 | ||
DE19604447A DE19604447C2 (de) | 1995-07-31 | 1996-02-07 | Spiralverdichter |
PCT/DE1996/001329 WO1997005389A1 (de) | 1995-07-31 | 1996-07-19 | Spiralverdichter, insbesondere zum einsatz bei der drucklufterzeugung für schienenfahrzeuge |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0842363A2 true EP0842363A2 (de) | 1998-05-20 |
EP0842363B1 EP0842363B1 (de) | 2002-12-04 |
Family
ID=26017293
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96925640A Expired - Lifetime EP0842363B1 (de) | 1995-07-31 | 1996-07-19 | Spiralverdichter, insbesondere zum einsatz bei der drucklufterzeugung für schienenfahrzeuge |
Country Status (4)
Country | Link |
---|---|
US (1) | US6017204A (de) |
EP (1) | EP0842363B1 (de) |
JP (1) | JPH11509902A (de) |
WO (1) | WO1997005389A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10065821A1 (de) | 2000-12-22 | 2002-07-11 | Bitzer Kuehlmaschinenbau Gmbh | Kompressor |
DK2620228T3 (en) | 2008-11-14 | 2017-08-21 | Kaercher Gmbh & Co Kg Alfred | Pressure Washer |
DE102009010461A1 (de) | 2009-02-13 | 2010-08-19 | Alfred Kärcher Gmbh & Co. Kg | Motorpumpeneinheit |
AU2009339812B2 (en) | 2009-02-13 | 2014-01-23 | Alfred Karcher Gmbh & Co. Kg | Motor pump unit |
PL2396550T3 (pl) | 2009-02-13 | 2014-09-30 | Kaercher Gmbh & Co Kg Alfred | Zespół motopompy |
JP6698726B2 (ja) * | 2018-03-12 | 2020-05-27 | 三菱重工業株式会社 | 両回転スクロール型圧縮機 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3817664A (en) * | 1972-12-11 | 1974-06-18 | J Bennett | Rotary fluid pump or motor with intermeshed spiral walls |
DE3604235C2 (de) * | 1986-02-11 | 1993-11-25 | Bosch Gmbh Robert | Spiralverdichter |
CH678969A5 (de) * | 1989-04-08 | 1991-11-29 | Aginfor Ag | |
JPH0788822B2 (ja) * | 1989-04-20 | 1995-09-27 | 株式会社日立製作所 | オイルフリー式スクロール形流体機械 |
CA2063734C (en) * | 1990-05-11 | 2001-08-07 | Toshihiko Mitsunaga | Scroll compressor |
US5178526A (en) * | 1991-12-17 | 1993-01-12 | Carrier Corporation | Coupling mechanism for co-orbiting scroll members |
US5256042A (en) * | 1992-02-20 | 1993-10-26 | Arthur D. Little, Inc. | Bearing and lubrication system for a scroll fluid device |
-
1996
- 1996-07-19 EP EP96925640A patent/EP0842363B1/de not_active Expired - Lifetime
- 1996-07-19 WO PCT/DE1996/001329 patent/WO1997005389A1/de active IP Right Grant
- 1996-07-19 US US08/981,568 patent/US6017204A/en not_active Expired - Fee Related
- 1996-07-19 JP JP9507089A patent/JPH11509902A/ja active Pending
Non-Patent Citations (1)
Title |
---|
See references of WO9705389A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP0842363B1 (de) | 2002-12-04 |
WO1997005389A1 (de) | 1997-02-13 |
JPH11509902A (ja) | 1999-08-31 |
US6017204A (en) | 2000-01-25 |
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