EP1395755A1 - Mehrstufiger kolbenverdichter - Google Patents
Mehrstufiger kolbenverdichterInfo
- Publication number
- EP1395755A1 EP1395755A1 EP02745080A EP02745080A EP1395755A1 EP 1395755 A1 EP1395755 A1 EP 1395755A1 EP 02745080 A EP02745080 A EP 02745080A EP 02745080 A EP02745080 A EP 02745080A EP 1395755 A1 EP1395755 A1 EP 1395755A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- check valve
- sealing membrane
- valve
- pressure chamber
- overflow
- 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
- 239000012528 membrane Substances 0.000 claims abstract description 54
- 238000007789 sealing Methods 0.000 claims abstract description 53
- 229920000642 polymer Polymers 0.000 claims description 3
- 239000000463 material Substances 0.000 description 5
- 229910000639 Spring steel Inorganic materials 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
- F04B39/1073—Adaptations or arrangements of distribution members the members being reed valves
- F04B39/108—Adaptations or arrangements of distribution members the members being reed valves circular reed valves
-
- 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
- F04B25/00—Multi-stage pumps
- F04B25/005—Multi-stage pumps with two cylinders
-
- 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
- F04B25/00—Multi-stage pumps
- F04B25/02—Multi-stage pumps of stepped piston type
-
- 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
- F04B27/02—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders arranged oppositely relative to main shaft
-
- 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
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0005—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
- F04B39/0016—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons with valve arranged in the piston
-
- 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
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
- F04B39/102—Adaptations or arrangements of distribution members the members being disc valves
- F04B39/1026—Adaptations or arrangements of distribution members the members being disc valves without spring
-
- 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
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
- F04B39/1073—Adaptations or arrangements of distribution members the members being reed valves
- F04B39/1086—Adaptations or arrangements of distribution members the members being reed valves flat annular reed valves
-
- 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
- F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
Definitions
- the invention relates to a piston compressor according to the preamble of claim 1.
- Such piston compressors are used in all technical areas where there is a need for compressed air.
- Such piston compressors are primarily used in the automotive industry for air suspension and / or air damping.
- Such a piston compressor in a two-stage design is described for example in DE 197 15 291 AI.
- This piston compressor consists of a compressor housing in which a cylindrical low pressure chamber with a larger low pressure piston and a cylindrical high pressure chamber with a smaller high pressure piston are formed.
- the low-pressure chamber and the high-pressure chamber are located on a common axis, and the low-pressure piston and the high-pressure piston are formed into an integral pressure piston with a common piston rod.
- the low pressure chamber has an inlet with an inlet check valve
- the high pressure chamber has an outlet with an outlet check valve
- both pressure chambers are connected by an overflow channel in which an overflow check valve is arranged.
- a crank pin of a crankshaft engages in the common piston rod of the low-pressure piston and the high-pressure piston in a right-angled orientation, which is driven, for example, by an electric motor and which rotates in a linear movement converted on the one-piece pressure piston. This linear movement results in an oscillating movement on the pressure piston.
- the inlet check valve, the outlet check valve and the overflow check valve have sealing washers made of spring steel which, like in the case of the inlet check valve and the overflow check valve, are fastened by a central screw and which cover several flow channels arranged on a partial circle, or which, like in the case of the outlet check valve, is held by a laterally offset screw and which seal an adjacent flow channel.
- the invention is therefore based on the object of developing a generic piston compressor whose check valves have a very low closing force and at the same time ensure a high level of tightness.
- a main part of a two-stage piston compressor consists of the actual piston compressor 1, a drive motor 2 and an air dryer unit 3.
- the piston compressor 1 includes a valve housing 4 with a cylindrical interior, which is stepped in diameter and which fits into a low-pressure chamber 5 with a larger diameter and divided into a high pressure chamber 6 with a smaller diameter.
- the low pressure chamber 5 is sealed to the outside with a valve housing base 7 and the high pressure chamber 6 with a valve housing cover 8.
- the valve housing cover 8 is connected to the housing of the air dryer unit 3 or is made in one piece.
- a • one- piece compressor piston 9 is fitted into the interior of the valve housing 4 and accordingly consists of a low-pressure piston 10 with a larger diameter, a high-pressure piston 11 with a smaller diameter and a common piston rod 12.
- a crankcase is formed, in which the connecting rod 13 of the crankshaft 14 of the drive motor 2 engages in a right-angled orientation.
- the low pressure chamber 5 and the high pressure chamber 6 have connections to one another and to the outside.
- This inlet check valve 15 includes a plurality of inlet openings 16 arranged on a common circular path and a first closure membrane 17 covering all inlet openings 16.
- the closure membrane 17 is fitted into an internal countersunk bore which has a spherical or angled bore base.
- a centrally attached and mushroom-like fastening element 18 fixes the closure membrane 17 and keeps the closure membrane 17 under a light weight. tension on the bottom of the counterbore. This tension introduced by the fastening element 18 is selected such that the position of the first closure membrane 17 is rotatable and does not stand out from the opening 16 in the pressure-balanced state.
- an overflow check valve 20 is arranged in the mouth area of this overflow channel 19 on the high-pressure side, which functionally connects or separates the low-pressure chamber 5 and the high-pressure chamber 6.
- the mouth of the overflow channel 19 is widened to form a chamber 21 which is kidney-shaped in cross section, the kidney shape following a circular path.
- the overflow check valve 20 consists of a pot sleeve 22 made of plastic, the bottom of which rests on the end face of the high-pressure piston 11 and bears sealingly on the inner wall of the high-pressure chamber 6. In the area of the overflow channel 19, the cup sleeve 22 is broken.
- the overflow check valve 20 also includes a specially designed valve holder 23, which is fitted into the interior of the cup sleeve 22 and is shown in more detail in FIG. 4.
- This valve holder 23 accordingly has an outer shape which is aligned with the interior of the cup sleeve 22.
- a cylindrical recess 24 is made from the side of the high-pressure chamber 6, the axis of which is arranged at a certain eccentricity amount from the axis of the high-pressure piston 11. This amount of eccentricity as well as the size and the radial position of the cylindrical recess 24 ensure that the cylindrical recess 24 lies in overlap with the kidney-shaped chamber 21 of the overflow channel 19.
- the valve holder 23 is equipped outside of the cylindrical recess 24 with distributed fastening elements 25 for position-determining anchoring with the high-pressure piston 11.
- first through hole 26 with a smaller diameter and a second through hole 27 with a larger diameter which are at the same or a different distance from the axis of the cylindrical recess 24 and which are in their position and in their extent are designed so that they overlap with the kidney-shaped chamber 21 of the overflow channel 19.
- first through hole 26 and the second through hole 27 further through holes can be used in the same manner.
- a free-fitting second sealing membrane 28 is fitted into the cylindrical recess 24 with such play that it is freely movable in the direction of rotation and in the axial direction and the annular space between the second sealing membrane 28 and the inner wall of the cylindrical recess 24 is suitable as an air passage.
- the adjacent edges of the cylindrical recess 24 and the second sealing membrane 28 are rounded or broken.
- the cylindrical recess 24 is also covered with a stop grid 29 which, on the one hand, limits the axial stroke of the second sealing membrane 28 and, on the other hand, allows the released compressed air flow to pass as freely as possible.
- the structure of the lattice struts is freely chosen, the openings in the stop lattice 29 being made so small that the second sealing membrane 28 cannot become jammed.
- the breakthroughs can also be of different sizes.
- the high pressure chamber 6 has an outlet check valve 30 for connecting the high pressure chamber 6 to a consumer line.
- This outlet check valve 30 is arranged according to FIG. 3 between the valve housing 4 and the valve housing cover 8 and consists of a circumferentially clamped valve plate 31 and a third sealing membrane 32.
- the valve plate 31 is sealed and has a seal with respect to the valve housing 4 and with the valve housing cover 8 a plurality of outlet openings 33 arranged on a common pitch circle.
- the third closure membrane 32 is designed as a ring and accordingly has a central flow bore 34.
- the third closure membrane 32 is held between the valve plate 31 and the valve housing cover 8, while the flow bore 34 with its The diameter is designed so that the diameter of the outlet openings is sufficiently smaller than the tapping circle diameter that the outlet openings 33 are completely covered by the third sealing membrane 32.
- the third sealing membrane 32 is installed without structural pre-tensioning, so that the closing force results only from the material-specific internal tension.
- the first closure membrane 17 of the inlet check valve 15, the second closure membrane 28 of the overflow check valve 28 and the third closure membrane 32 of the outlet check valve 30 are made of plastic, in particular of an elastic polymer, which in the main has a high puncture resistance, is highly temperature-resistant and has elastic properties with memory Effect.
- the rotating movement of the crankshaft 14 driven by the drive motor 2 is converted into an oscillating linear movement via the connecting rod 13 and transmitted to the valve piston 9.
- the low-pressure piston 10 and the high-pressure piston 11 thus move equally between two opposite reversal points and thus load two low-pressure chamber 5 and high-pressure chamber 6, which change in volume.
- a first opening force thus acts via the first through-hole 26 and a second opening force on the second closure membrane 28 via the second through bore 27, both of which act paraüel to each other. These two forces are as different as the cross sections of the two through bores 26 and 27.
- the exposed second sealing membrane 28 comes into an inclined position and, due to radial force components, into a radial rotary movement which is directed from the smaller through bore 26 to the larger through bore 27 and which the position of the second sealing membrane 28 to the two through holes 26, 27 is constantly changing. This extends the service life of the second sealing membrane 28 significantly, since the load on the material of the sealing membrane 28 is circumferentially distributed and thus premature overloading of only a certain section of the sealing membrane 28 is avoided.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Check Valves (AREA)
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10125420 | 2001-05-25 | ||
| DE10125420A DE10125420C1 (de) | 2001-05-25 | 2001-05-25 | Mehrstufiger Kolbenverdichter |
| PCT/DE2002/001887 WO2002095227A1 (de) | 2001-05-25 | 2002-05-24 | Mehrstufiger kolbenverdichter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1395755A1 true EP1395755A1 (de) | 2004-03-10 |
| EP1395755B1 EP1395755B1 (de) | 2006-12-13 |
Family
ID=7686041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02745080A Expired - Lifetime EP1395755B1 (de) | 2001-05-25 | 2002-05-24 | Mehrstufiger kolbenverdichter |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7351044B2 (de) |
| EP (1) | EP1395755B1 (de) |
| AT (1) | ATE348266T1 (de) |
| DE (2) | DE10125420C1 (de) |
| WO (1) | WO2002095227A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012107284A1 (de) * | 2011-02-11 | 2012-08-16 | Continental Teves Ag & Co. Ohg | Kompressorschaltung für eine pneumatische regelvorrichtung eines fahrzeugs |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20108696U1 (de) * | 2001-05-25 | 2001-08-30 | PNP Luftfedersysteme GmbH, 19089 Crivitz | Mehrstufiger Kolbenverdichter |
| DE102011008086A1 (de) * | 2011-01-07 | 2012-07-12 | Inficon Gmbh | Doppeltwirkender Kältemittelkompressor |
| US20160061196A1 (en) * | 2014-08-26 | 2016-03-03 | Shinano Kenshi Co., Ltd. | Vacuum machine, compressor, and piston |
| CN105003413B (zh) * | 2015-07-30 | 2017-05-31 | 江苏锐升新材料有限公司 | 一种地板加工用的螺杆式压缩机 |
| DE102016202270B4 (de) * | 2016-02-15 | 2025-01-02 | Continental Automotive Technologies GmbH | Vorrichtung mit einem Luftverdichter und Rückschlagventil |
| TWI640707B (zh) * | 2017-07-21 | 2018-11-11 | 陳家珍 | 排氣閥 |
| CN107642474B (zh) * | 2017-09-11 | 2023-09-29 | 南通广兴气动设备有限公司 | 高密封二级高压泵 |
| CN107605718A (zh) * | 2017-11-07 | 2018-01-19 | 蚌埠高科瑞力压缩机有限公司 | 一种压缩机用活塞气缸余隙调节的分体式活塞 |
| DE102018130887A1 (de) * | 2018-12-04 | 2020-06-04 | Amk Holding Gmbh & Co. Kg | Kolbenverdichter |
| DE102019120730B4 (de) * | 2019-07-31 | 2025-04-30 | Amk Holding Gmbh & Co. Kg | Zylinderkolben für einen Luftkompressor |
| DE102021128196A1 (de) * | 2021-10-28 | 2023-05-04 | Aircom Automotive Sp. z o.o. Sp. k. | Auslassventil für einen Kompressor |
| WO2025233798A1 (en) * | 2024-05-06 | 2025-11-13 | Robert Bosch Gmbh | Distribution valve and reciprocating compressor comprising said distribution valve |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US883011A (en) * | 1907-02-05 | 1908-03-24 | William E Gleissner | Brazing. |
| US2403814A (en) * | 1942-02-17 | 1946-07-09 | Maniscalco Pictro | Compressor |
| US2477093A (en) * | 1944-04-29 | 1949-07-26 | Philco Corp | Refrigerant circulating system with multistage compressor |
| US2430401A (en) * | 1944-06-08 | 1947-11-04 | Heywood Compressor Company Ltd | Gas compressor |
| US3192953A (en) * | 1961-12-18 | 1965-07-06 | Pressure Products Ind Inc | Check valves |
| US3536424A (en) * | 1968-11-12 | 1970-10-27 | Hydro Seal Ltd | Pump and piston assembly therefor |
| UST883011I4 (en) * | 1970-04-27 | 1971-02-02 | Miller two-stage air compressor | |
| DE2849075C2 (de) * | 1978-11-11 | 1987-05-27 | Audi AG, 8070 Ingolstadt | Druckventilanordnung für einen Kolbenverdichter |
| US4450860A (en) * | 1981-02-13 | 1984-05-29 | Copeland Corporation | Discharge valve guide |
| JPS6022198B2 (ja) * | 1982-02-23 | 1985-05-31 | 本田技研工業株式会社 | 往復動型圧縮機の組立方法 |
| JP2631649B2 (ja) * | 1986-11-27 | 1997-07-16 | 三菱電機株式会社 | スクロール圧縮機 |
| US5022832A (en) * | 1988-11-30 | 1991-06-11 | Holset Engineering Company | Ring valve type air compressor |
| US4890637A (en) * | 1988-12-12 | 1990-01-02 | Flavorcoffee Co. Inc. | One way valve |
| US4931000A (en) * | 1989-03-02 | 1990-06-05 | Gilian Instrument Corp. | Double acting diaphragm air pump |
| DE9303680U1 (de) * | 1993-03-12 | 1993-04-29 | Elcon Elektrotechnik GmbH, 8150 Holzkirchen | Zwei- oder mehrstufiger Kompressor |
| US5658134A (en) * | 1995-07-26 | 1997-08-19 | J-Operating Company | Compressor with suction valve in piston |
| IT1287150B1 (it) * | 1996-11-11 | 1998-08-04 | Roberto Siviero | Pompa alternativa a valvole coassiali in specie per gommoni e simili con azionamento manuale e motorizzato |
| DE19715291C2 (de) * | 1997-04-11 | 2002-05-16 | Pnp Luftfedersysteme Gmbh | Zweistufiger Kompressor |
| US6056439A (en) * | 1999-01-28 | 2000-05-02 | Fres-Co System Usa, Inc. | High flow/volume valve for flexible packaging |
| DE20108696U1 (de) * | 2001-05-25 | 2001-08-30 | PNP Luftfedersysteme GmbH, 19089 Crivitz | Mehrstufiger Kolbenverdichter |
-
2001
- 2001-05-25 DE DE10125420A patent/DE10125420C1/de not_active Expired - Fee Related
-
2002
- 2002-05-24 AT AT02745080T patent/ATE348266T1/de not_active IP Right Cessation
- 2002-05-24 US US10/479,383 patent/US7351044B2/en not_active Expired - Fee Related
- 2002-05-24 EP EP02745080A patent/EP1395755B1/de not_active Expired - Lifetime
- 2002-05-24 DE DE50208956T patent/DE50208956D1/de not_active Expired - Lifetime
- 2002-05-24 WO PCT/DE2002/001887 patent/WO2002095227A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO02095227A1 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012107284A1 (de) * | 2011-02-11 | 2012-08-16 | Continental Teves Ag & Co. Ohg | Kompressorschaltung für eine pneumatische regelvorrichtung eines fahrzeugs |
Also Published As
| Publication number | Publication date |
|---|---|
| US20060104844A1 (en) | 2006-05-18 |
| WO2002095227A1 (de) | 2002-11-28 |
| DE50208956D1 (de) | 2007-01-25 |
| DE10125420C1 (de) | 2002-10-24 |
| EP1395755B1 (de) | 2006-12-13 |
| ATE348266T1 (de) | 2007-01-15 |
| US7351044B2 (en) | 2008-04-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| RIN1 | Information on inventor provided before grant (corrected) |
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| GRAS | Grant fee paid |
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