EP1181452B1 - Kompressor - Google Patents

Kompressor Download PDF

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Publication number
EP1181452B1
EP1181452B1 EP00943626A EP00943626A EP1181452B1 EP 1181452 B1 EP1181452 B1 EP 1181452B1 EP 00943626 A EP00943626 A EP 00943626A EP 00943626 A EP00943626 A EP 00943626A EP 1181452 B1 EP1181452 B1 EP 1181452B1
Authority
EP
European Patent Office
Prior art keywords
housing
compressor
pressure
compressor according
housing cover
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.)
Expired - Lifetime
Application number
EP00943626A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1181452A1 (de
Inventor
Jan Hinrichs
Frank Obrist
Peter Kuhn
Volker Seipel
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.)
LuK Fahrzeug Hydraulik GmbH and Co KG
Original Assignee
LuK Fahrzeug Hydraulik GmbH and Co KG
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
Priority claimed from DE29923375U external-priority patent/DE29923375U1/de
Application filed by LuK Fahrzeug Hydraulik GmbH and Co KG filed Critical LuK Fahrzeug Hydraulik GmbH and Co KG
Publication of EP1181452A1 publication Critical patent/EP1181452A1/de
Application granted granted Critical
Publication of EP1181452B1 publication Critical patent/EP1181452B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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 Motor vehicle, with a housing and one arranged in the housing Compressor unit for drawing in and compressing a refrigerant, the Refrigerant from a suction area formed in a housing cover the compressor unit into a likewise formed in the housing cover The outlet area flows and the housing cover seals over connecting means is connected to the housing.
  • Compressors of the type in question are mostly used as air conditioning compressors referred to and are from practice in a wide variety of embodiments known.
  • Such compressors include a housing, one from the outside includes driven compressor or pump unit.
  • Axial piston pump designed pump unit in turn comprises at least one Piston that can be moved back and forth in a cylinder block.
  • Piston that can be moved back and forth in a cylinder block.
  • a such a compressor equipped with several pistons, which rotate a swashplate over a receiving disc in the direction of its longitudinal axis back and forth are moved, the receiving disc is rotatably mounted in the housing.
  • Air conditioning compressors of various designs work with one refrigerant.
  • an inert gas for example CO 2
  • CO 2 can be used as 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 constructive measures, for example with regard to the choice of material and dimensioning, are required.
  • the housing cover is usually releasably 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 in the interior of the housing.
  • the enormous pressures occurring there in the compressor unit or in the drive chamber - pressures in the range between 40 bar and 60 bar - can lead to deformations of the connecting means, so that leakages occur at the interface between the housing and the housing cover.
  • a generic compressor is known from US-A-4 095 921.
  • This Compressor comprises a housing and one arranged in the housing Compressor unit for drawing in and compressing a refrigerant.
  • the housing is completed by a housing cover, being between the housing and the Housing cover provided a compression area with sealing measures is.
  • the connection area between the housing and the housing cover is always exposed to high pressures, so that the connecting means due to the very considerable stress due to pressures prevailing inside the housing Seldom deform so that at the interface between the housing and the housing cover Leakages occur. So far it is with the generic compressor necessary to provide additional external sealing measures, namely at least slight deformations of the connection means to avoid leaks to be able to compensate. This is structurally complex and ultimately insufficient.
  • the present invention is therefore based on the object of a compressor Generic type to develop and develop such that a burden of the connecting means connecting the housing cover to the housing is reduced.
  • a pressure load on the connecting means internal leaks should at least be largely avoided.
  • the compressor according to the invention solves the above problem by Features of claim 1. Thereafter, a compressor Generic type characterized in that the connection area and optionally the wall of the housing through which the connecting means extend through, at least largely relieved of pressure, the Pressure relief through inner seals against the outer connection area is realized in that between the connection area and the High pressure area seals are arranged.
  • connection area is depressurized.
  • Words should - ideally - include the lanyards Connection area must be designed to be pressure-free, so that in addition to the axial load the connecting means no further load, in particular no bending forces, occur. In concrete terms, this is achieved by an internal seal against the realized outer connection area, so that it is ensured that the Connection area having connecting means is more or less pressure-free. Additional external sealing measures are required for such an internal one Sealing not required. On the contrary, the outer one could Will have leakage to the outside of the connection area, namely also insofar to be able to guarantee a further pressure relief in the event that nevertheless an internal leakage occurs.
  • connection area and the high pressure area Seals arranged.
  • the high pressure area there is an engine room pressure, which depending on the control position as intermediate high pressure and Suction pressure is to be understood.
  • the connecting means advantageously extend through the housing cover through into the wall of the housing, along the circumference of the housing cover several preferably arranged equidistant to each other Lanyards are provided.
  • Lanyards are screws that are all through the housing cover extend through and with its external thread in with a corresponding Grip internally threaded holes in the wall of the housing. The screw head arrives when the screws are tightened or tightened the surface of the housing cover to the system. A sealing tension of the This makes it possible to cover the housing with the housing.
  • connection area is advantageous compared to the high pressure area sealed in the housing cover. If between the housing or the Compressor unit and the housing cover a valve plate is provided, it is of further advantage if the connection area opposite the valve plate is sealed so that neither from the high pressure side within the housing nor a pressure load from the high pressure side inside the housing cover to the Connection area can reach.
  • the seals could be any rubber seals, for example O-rings. Other conventional sealing measures are possible.
  • this pressure-relieved space forms an annular shape around the compressor unit could stretch around.
  • This space is preferably close to the procedure provided between the connecting means or screw and the housing wall. This Space is suitable for any leaks from within the housing or from to compensate for the drive room, at least to the extent that so-called Creep pressures are not applied directly or in full to the connecting means Act.
  • the pressure-relieved space is opposite the compressor unit or is sealed again from the drive room.
  • connection means For further pressure relief of the room, but above all the connection means, it is a further advantage if at least one is out of the room ventilation channel extending outside the housing is provided, so that unwanted leaks can escape from the room without facing the connection means to build up pressure pads and thus have a negative effect.
  • 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 formed in a front cover 3 Intake area 4 through the compressor unit 2 in the also in the Housing cover 3 formed outlet area 5.
  • 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 via connecting means 6 is sealingly connected to the housing 1b. Between the housing cover 3 and the housing 1 b is connected. Between the housing cover 3 and the housing 1 b is also a cylinder block 1 a and a valve plate 7 provided, which will not be discussed here.
  • connection area 8 through which the connection means 6 stretch through is at least largely relieved of pressure, namely in the area between a seal arranged between the connection area and the drive chamber 12 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 to understand.
  • the single figure further shows that the connecting means 6 as screws are executed, the only figure being just one of the screws in one Sectional view shows.
  • the screws or connecting means 6 extend through the housing cover 3 into the wall 9 of the housing 1 b, wherein along the circumference of the housing 1 b several equidistant from each other Connection means or screws are provided.
  • the external thread the screws engage in bores 10 in the wall which are provided with an internal thread 9 of the housing 1 b and can be tightened so that the housing cover 3 is firmly clamped to the housing 1 b.
  • connection area 8 This is a pressure-relieved connection area - opposite the drive room 11 or opposite the compressor unit 2 is sealed by means of a seal 12. In concrete terms it is an O-ring.
  • the relieved connection area is the with reference numeral 8 and the lowest arrow there and to understand the wall 9 of the housing 1 b.
  • 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 opposite the suction lamella sealed with an O-ring.
  • the suction lamella is opposite the cylinder block 1 a sealed with a flat gasket.
  • Another seal 13 is between the connection area 8 and the valve plate 7 provided so that the connection area 8 already provided by the here Seals 12, 13 or sealing measures at least largely is relieved of pressure.
  • a pressure-relieved room 14 is provided, which extends in a ring around the compressor unit 2.
  • a venting channel is provided, which extends out of the room 14 outside of the Housing 1 b extends.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Gasket Seals (AREA)
EP00943626A 1999-05-26 2000-05-23 Kompressor Expired - Lifetime EP1181452B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE29923375U 1999-05-26
DE29923375U DE29923375U1 (de) 1999-05-26 1999-05-26 Kompressor
PCT/DE2000/001652 WO2000073657A1 (de) 1999-05-26 2000-05-23 Kompressor

Publications (2)

Publication Number Publication Date
EP1181452A1 EP1181452A1 (de) 2002-02-27
EP1181452B1 true EP1181452B1 (de) 2004-04-21

Family

ID=8083771

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00943626A Expired - Lifetime EP1181452B1 (de) 1999-05-26 2000-05-23 Kompressor

Country Status (5)

Country Link
US (1) US6554581B2 (enExample)
EP (1) EP1181452B1 (enExample)
JP (1) JP2003500609A (enExample)
DE (2) DE10081479D2 (enExample)
WO (1) WO2000073657A1 (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005344625A (ja) * 2004-06-03 2005-12-15 Zexel Valeo Climate Control Corp 圧縮機
JP2007154834A (ja) * 2005-12-07 2007-06-21 Toyota Industries Corp ピストン式圧縮機
DE102011114904A1 (de) 2011-10-05 2013-04-11 Ixetic Bad Homburg Gmbh Verdichter mit Druckentlastungsnut
KR101954537B1 (ko) * 2017-11-07 2019-03-05 엘지전자 주식회사 왕복동식 압축기

Family Cites Families (15)

* Cited by examiner, † Cited by third party
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 (enExample) * 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 (ko) * 1994-10-01 1998-04-28 서상기 사판식 액셜 피스톤 유압펌프 및 모터의 가변용량 기구
JP3735996B2 (ja) * 1997-02-05 2006-01-18 株式会社デンソー 斜板型圧縮機
DE19807691B4 (de) * 1997-03-03 2012-07-12 Ixetic Bad Homburg Gmbh Kompressor, insbesondere für eine Klimaanlage eines Kraftfahrzeugs
GB2328252B (en) * 1997-03-03 2001-08-01 Luk Fahrzeug Hydraulik Compressor, in particular for a vehicle air conditioning system
DE19807947A1 (de) * 1997-03-03 1998-11-05 Luk Fahrzeug Hydraulik Kompressor, insbesondere für eine Klimaanlage eines Kraftfahrzeugs
FR2760258B1 (fr) * 1997-03-03 2002-02-08 Luk Fahrzeug Hydraulik Compresseur pour une installation de climatisation d'un vehicule automobile
JPH10331769A (ja) * 1997-05-30 1998-12-15 Zexel Corp 冷媒圧縮機
JP2000110710A (ja) * 1998-10-08 2000-04-18 Hitachi Ltd 高圧燃料ポンプ
JP3069736B1 (ja) * 1999-02-19 2000-07-24 セイコー精機株式会社 気体圧縮機

Also Published As

Publication number Publication date
JP2003500609A (ja) 2003-01-07
EP1181452A1 (de) 2002-02-27
US20020076342A1 (en) 2002-06-20
DE10081479D2 (de) 2002-05-29
DE50006158D1 (de) 2004-05-27
US6554581B2 (en) 2003-04-29
WO2000073657A1 (de) 2000-12-07

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