EP1181452A1 - Compressor - Google Patents
CompressorInfo
- Publication number
- EP1181452A1 EP1181452A1 EP00943626A EP00943626A EP1181452A1 EP 1181452 A1 EP1181452 A1 EP 1181452A1 EP 00943626 A EP00943626 A EP 00943626A EP 00943626 A EP00943626 A EP 00943626A EP 1181452 A1 EP1181452 A1 EP 1181452A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- compressor
- compressor according
- pressure
- area
- 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
- 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
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/121—Casings
-
- 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
- F04B27/1081—Casings, housings
Definitions
- the invention relates to a compressor, in particular for the air conditioning system of a motor vehicle, with a housing and a compressor unit arranged in the housing for the suction and compression of a refrigerant, the refrigerant passing from a suction area formed in a housing cover through the compressor unit into a likewise in the housing cover trained outlet area flows and the housing cover is sealingly connected to the housing via connecting means.
- Compressors of the type in question are mostly referred to as air conditioning compressors and are known in practice in a wide variety of embodiments.
- Such compressors comprise a housing which encloses a compressor or pump unit driven from outside.
- the pump unit for example designed as an axial piston pump, in turn comprises at least one piston which can be moved back and forth in a cylinder block.
- Such a compressor is usually equipped with a plurality of pistons which, when a swash plate rotates, are moved back and forth in the direction of its longitudinal axis via a receiving disk, the receiving disk being mounted in the housing in a rotationally fixed manner.
- Air conditioning compressors of various designs work with one refrigerant.
- an inert gas for example C0 2
- the refrigerant which is harmless from an environmental point of view.
- the use of such a refrigerant leads to higher pressures within the compressor, which means that very special design measures, for example with regard to the choice of material and dimensioning, are required.
- the housing cover is usually detachably connected to the housing comprising the compressor unit, a valve plate being arranged between them.
- the connecting means are exposed to a very considerable load due to the pressures prevailing inside the housing.
- the enormous pressures that occur there in the compressor unit or in the drive room can - pressures in the range between 40 bar and 60 bar - lead to deformation of the connecting means, so that leakage occurs at the interface between the housing and the housing cover.
- the present invention is therefore based on the object of designing and developing a compressor of the type mentioned in the introduction such that a load on the connecting means connecting the housing cover to the housing is reduced.
- a pressure load on the connecting means due to internal leaks should at least be largely avoided.
- a compressor of the type mentioned at the outset is characterized in that the connection area through which the connection means extend is at least largely relieved of pressure.
- connection area comprising the connecting means should be designed to be pressure-free, so that apart from the axial loading of the connecting means no further loading, in particular no bending forces, occurs.
- the connecting means advantageously extend through the housing cover into the wall of the housing, several connecting means preferably being arranged equidistantly from one another being provided along the circumference of the housing cover.
- the connecting means could be screws which extend overall through the housing cover and engage with their external thread in bores in the wall of the housing provided with a corresponding internal thread. The screw head arrives when the screws are tightened or tightened the surface of the housing cover to the system. A sealing clamping of the housing cover with the housing is possible.
- the pressure relief provided in a further manner according to the invention could be realized by an inner seal with respect to the outer connection area, so that it is ensured that the connection area having the connection means is more or less pressure-free. Additional external sealing measures are not necessary with such an internal seal. On the contrary, the outer connection area could have wanted leaks to the outside, in order to be able to guarantee further pressure relief in the event that an internal leak occurs.
- connection area is arranged between the connection area and the high-pressure area - both in the housing cover and in the housing.
- the high-pressure area there is an engine room pressure which, depending on the control position, is to be understood as an intermediate pressure between high pressure and suction pressure.
- the connection area could be sealed off from the drive chamber or the compressor unit, so that the connection area is relieved of pressure or even free of pressure.
- the connection area is sealed off from the high pressure area in the housing cover.
- connection area is sealed off from the valve plate, so that there is no pressure load either from the high pressure side inside the housing or from the high pressure side inside the housing cover can reach the connection area.
- the seals could be any rubber seals, such as O-rings. Other conventional sealing measures are possible.
- connection area a pressure-relieved space is formed between the connection area and the compressor unit or the drive area.
- this pressure-relieved space could extend in a ring around the compressor unit.
- This space is preferably provided in the vicinity of the engagement between the connecting means or screw and the housing wall. This space is suitable to compensate for any leaks from within the housing or out of the drive chamber, at least to the extent that so-called creep pressures do not act directly on the connecting means and not in full.
- the only figure shows a compressor for the air conditioning system of a motor vehicle.
- the compressor comprises a housing 1 b and a compression unit 2 arranged in the housing 1 b for sucking in and compressing a refrigerant, the refrigerant being CO 2 .
- the refrigerant flows from a suction area 4 formed in a front housing cover 3 through the compressor unit 2 into the outlet area 5 also formed in the housing cover 3.
- the suction area 4 is a low pressure area
- the outlet area 5 is a high pressure area.
- the single figure also shows that the housing cover 3 is connected sealingly to the housing 1b via connecting means 6. Is connected between the housing cover 3 and the housing 1 b. Between the housing cover 3 and the housing 1 b, a cylinder block 1 a and a valve plate 7 are further provided, which will not be discussed here.
- connection area 8 through which the connection means 6 extend is at least largely relieved of pressure, namely in the area between a seal 12 arranged between the connection area and the drive chamber and a pressure-relieved space 14, including a pressure relief in relation to the pressure generated within the compressor, namely the pressure in the drive room is to be understood.
- the single figure further shows that the connecting means 6 are designed as screws, the single figure only showing one of the screws in a sectional view.
- the screws or connecting means 6 extend through the housing cover 3 into the wall 9 of the housing 1 b, several connecting means or screws arranged equidistantly from one another being provided along the circumference of the housing 1 b.
- the external threads of the screws engage in bores 10 provided with an internal thread in the wall 9 of the housing 1 b and can thereby be tightened, so that the housing cover 3 can be firmly clamped to the housing 1 b.
- connection area 8 this is a pressure-relieved connection area - is sealed from the drive chamber 11 or from the compressor unit 2 by means of a seal 12. In concrete terms, this is an O-ring.
- the relieved connection area is to be understood as the area identified by reference numeral 8 and the lowest arrow there, and the wall 9 of the housing 1b.
- a flat seal 16 is arranged between the housing cover 3 and the valve plate 7.
- the valve plate consists of a seat plate and a suction plate designed as a plate with individual pressure plates which are arranged in the outlet area 5.
- the seat plate is sealed against the suction lamella with an O-ring.
- the suction lamella is sealed against the cylinder block 1 a with a flat gasket.
- connection area 8 is provided between the connection area 8 and the valve plate 7, so that the connection area 8 is at least largely relieved of pressure by the seals 12, 13 or sealing measures provided here.
- a pressure-relieved space 14 is provided between the connection area 8 and the compressor unit 2 or the drive chamber 11, which extends in a ring around the compressor unit 2.
- a ventilation channel 15 is provided as a further measure for pressure relief, which extends out of the space 14 to the outside of the housing 1 b. A load on the connecting means or screws resulting from creep pressures is thus largely avoided, which favors the service life of the compressor.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
- Gasket Seals (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29923375U DE29923375U1 (en) | 1999-05-26 | 1999-05-26 | compressor |
DE29923375U | 1999-05-26 | ||
PCT/DE2000/001652 WO2000073657A1 (en) | 1999-05-26 | 2000-05-23 | Compressor |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1181452A1 true EP1181452A1 (en) | 2002-02-27 |
EP1181452B1 EP1181452B1 (en) | 2004-04-21 |
Family
ID=8083771
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00943626A Expired - Lifetime EP1181452B1 (en) | 1999-05-26 | 2000-05-23 | Compressor |
Country Status (5)
Country | Link |
---|---|
US (1) | US6554581B2 (en) |
EP (1) | EP1181452B1 (en) |
JP (1) | JP2003500609A (en) |
DE (2) | DE50006158D1 (en) |
WO (1) | WO2000073657A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005344625A (en) * | 2004-06-03 | 2005-12-15 | Zexel Valeo Climate Control Corp | Compressor |
JP2007154834A (en) * | 2005-12-07 | 2007-06-21 | Toyota Industries Corp | Piston type compressor |
DE102011114904A1 (en) * | 2011-10-05 | 2013-04-11 | Ixetic Bad Homburg Gmbh | Compressor with pressure relief groove |
KR101954537B1 (en) * | 2017-11-07 | 2019-03-05 | 엘지전자 주식회사 | Reciprocating compressor |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3577891A (en) * | 1968-08-21 | 1971-05-11 | Hitachi Ltd | Swash plate compressor |
US4073603A (en) * | 1976-02-06 | 1978-02-14 | Borg-Warner Corporation | Variable displacement compressor |
US4095921A (en) * | 1976-10-14 | 1978-06-20 | Sankyo Electric Co., Ltd. | Multi-cylinder compressor having spaced arrays of cylinders |
JPS5537788Y2 (en) * | 1977-06-01 | 1980-09-04 | ||
US4297085A (en) * | 1979-10-31 | 1981-10-27 | General Motors Corporation | Guide mechanism for compressor socket plate |
US5167181A (en) * | 1991-12-04 | 1992-12-01 | Ken Lee W | Fluid transfer devices |
KR0135479B1 (en) * | 1994-10-01 | 1998-04-28 | 서상기 | Variable capacity mechanism of slant axial piston type hydraulic pump & motor |
JP3735996B2 (en) * | 1997-02-05 | 2006-01-18 | 株式会社デンソー | Swash plate compressor |
DE19807947A1 (en) * | 1997-03-03 | 1998-11-05 | Luk Fahrzeug Hydraulik | Compressor for air conditioning system |
IT1298459B1 (en) * | 1997-03-03 | 2000-01-10 | Luk Fahrzeug Hydraulik | COMPRESSOR, IN PARTICULAR FOR THE AIR CONDITIONING SYSTEM OF A MOTOR VEHICLE |
DE19807691B4 (en) * | 1997-03-03 | 2012-07-12 | Ixetic Bad Homburg Gmbh | Compressor, in particular for an air conditioning system of a motor vehicle |
FR2762876B1 (en) * | 1997-03-03 | 2002-03-22 | Luk Fahrzeug Hydraulik | COMPRESSOR IN PARTICULAR FOR THE AIR CONDITIONING OF A MOTOR VEHICLE |
JPH10331769A (en) * | 1997-05-30 | 1998-12-15 | Zexel Corp | Refrigerant compressor |
JP2000110710A (en) * | 1998-10-08 | 2000-04-18 | Hitachi Ltd | High-pressure fuel pump |
JP3069736B1 (en) * | 1999-02-19 | 2000-07-24 | セイコー精機株式会社 | Gas compressor |
-
2000
- 2000-05-23 WO PCT/DE2000/001652 patent/WO2000073657A1/en active Search and Examination
- 2000-05-23 JP JP2001500121A patent/JP2003500609A/en active Pending
- 2000-05-23 EP EP00943626A patent/EP1181452B1/en not_active Expired - Lifetime
- 2000-05-23 DE DE50006158T patent/DE50006158D1/en not_active Expired - Lifetime
- 2000-05-23 DE DE10081479T patent/DE10081479D2/en not_active Expired - Lifetime
-
2001
- 2001-11-21 US US09/991,276 patent/US6554581B2/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO0073657A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE10081479D2 (en) | 2002-05-29 |
WO2000073657A1 (en) | 2000-12-07 |
EP1181452B1 (en) | 2004-04-21 |
US20020076342A1 (en) | 2002-06-20 |
DE50006158D1 (en) | 2004-05-27 |
JP2003500609A (en) | 2003-01-07 |
US6554581B2 (en) | 2003-04-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE4291026C2 (en) | Vibration damper for a pumped liquid system | |
EP3371019B1 (en) | Pressure-limiting valve | |
DE19603109C2 (en) | Piston refrigerant compressor with improved sealing function | |
EP1181452B1 (en) | Compressor | |
EP0094439B1 (en) | Valve fitting for a fluidic system | |
EP1918592A1 (en) | Sealing ring with integrated cushioning means, end cap with sealing ring and pneumatic cylinder with end cap and sealing means | |
DE19829124A1 (en) | Pressure valve for pneumatic or hydraulic vehicle brake lines | |
DE19924093C2 (en) | compressor | |
DE19807691A1 (en) | Compressor for air conditioning system in motor vehicles | |
DE102010021806A1 (en) | Device with a molded seal | |
DE102004050844B4 (en) | Piston compressor-cylinder arrangement, in particular for hermetically sealed refrigerant compressor | |
DE8814480U1 (en) | Sealing unit for piston pumps | |
EP1259735B1 (en) | Reciprocating piston machine | |
EP0922163A1 (en) | Vacuum piston pump with an inlet and an outlet | |
DE10255680B4 (en) | Axial piston compressors, in particular CO 2 compressors for vehicle air conditioning systems with split cylinder head | |
EP0114205B1 (en) | Injection pump for diesel engines | |
DE2219962C3 (en) | Pressure medium-operated valve for shutting off a pipeline | |
DE102006008867B4 (en) | Cylinder head assembly for a reciprocating compressor | |
WO2002095229A1 (en) | Compressor | |
DE102019119944A1 (en) | Valve device for a reciprocating compressor | |
DE19916376A1 (en) | Pump housing | |
DE202011110410U1 (en) | Compressor with pressure limitation | |
DE8323775U1 (en) | Single-acting working cylinder | |
DE19906698B4 (en) | Piston-cylinder device | |
DE19859062C2 (en) | Arrangement for sealing in the area between the cylinder block and the valve plate of a compressor |
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 |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20011120 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
17Q | First examination report despatched |
Effective date: 20021104 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB IT |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: GERMAN |
|
REF | Corresponds to: |
Ref document number: 50006158 Country of ref document: DE Date of ref document: 20040527 Kind code of ref document: P |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20040722 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
ET | Fr: translation filed | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20050124 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R082 Ref document number: 50006158 Country of ref document: DE Representative=s name: RAUSCH, GABRIELE, DIPL.-PHYS. DR.RER.NAT., DE |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R082 Ref document number: 50006158 Country of ref document: DE Representative=s name: RAUSCH, GABRIELE, DIPL.-PHYS. DR.RER.NAT., DE Effective date: 20140910 Ref country code: DE Ref legal event code: R081 Ref document number: 50006158 Country of ref document: DE Owner name: MAGNA POWERTRAIN BAD HOMBURG GMBH, DE Free format text: FORMER OWNER: IXETIC BAD HOMBURG GMBH, 61352 BAD HOMBURG, DE Effective date: 20140910 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 16 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20150521 Year of fee payment: 16 Ref country code: DE Payment date: 20150521 Year of fee payment: 16 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20150521 Year of fee payment: 16 Ref country code: IT Payment date: 20150515 Year of fee payment: 16 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 50006158 Country of ref document: DE |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20160523 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160523 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20170131 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160531 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20161201 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160523 |