EP1948927A1 - Compresseur de climatisation a systeme de limitation de la pression differentielle - Google Patents

Compresseur de climatisation a systeme de limitation de la pression differentielle

Info

Publication number
EP1948927A1
EP1948927A1 EP06806685A EP06806685A EP1948927A1 EP 1948927 A1 EP1948927 A1 EP 1948927A1 EP 06806685 A EP06806685 A EP 06806685A EP 06806685 A EP06806685 A EP 06806685A EP 1948927 A1 EP1948927 A1 EP 1948927A1
Authority
EP
European Patent Office
Prior art keywords
pressure
air
check valve
compressor
limiting device
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
Application number
EP06806685A
Other languages
German (de)
English (en)
Other versions
EP1948927B1 (fr
Inventor
Willi Parsch
Thomas Di Vito
Jan Hinrichs
Robert Mager
Jürgen Wertenbach
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.)
Bayerische Motoren Werke AG
Ixetic Mac GmbH
Original Assignee
Bayerische Motoren Werke AG
Ixetic Mac GmbH
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
Application filed by Bayerische Motoren Werke AG, Ixetic Mac GmbH filed Critical Bayerische Motoren Werke AG
Publication of EP1948927A1 publication Critical patent/EP1948927A1/fr
Application granted granted Critical
Publication of EP1948927B1 publication Critical patent/EP1948927B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/005—Arrangement or mounting of control or safety devices of safety devices
    • 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
    • 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
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/02—Stopping, starting, unloading or idling control
    • F04B49/03—Stopping, starting, unloading or idling control by means of 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/10—Other safety measures

Definitions

  • the invention relates to an air conditioning compressor for air conditioning systems in motor vehicles, the air compressor having at the high pressure outlet a check valve and a pressure limiting device.
  • Such compressors are known.
  • the integration of the check valve is required to improve the starting behavior of the stroke volume adjustable compressor and to ensure the clutchless drive of the compressor for the deactivated air conditioning operation.
  • This check valve is installed in the high pressure area of the system and separates at least in the case of a pressure gradient opposite to the passage direction of the check valve within the high pressure side, the high pressure side in two sections.
  • a pressure relief valve is integrated on the high pressure side in the air conditioning compressor, which lies downstream of the check valve. This means that in the case of a pressure gradient on the check valve counter to the passage direction of the check valve, so with a pressure increase in the remaining high pressure range of the air conditioner, the high pressure on the pressure relief valve can not be reduced.
  • an air conditioning compressor for air conditioning systems in motor vehicles, wherein the air compressor at the high pressure outlet has a check valve and a pressure limiting device, such as a pressure relief valve or rupture disc, wherein the pressure limiting device is arranged downstream of the check valve and parallel to the check valve arranged a Differenzdruckbegrenzungseinrich- device is.
  • An air-conditioning compressor is preferred in which the differential-pressure limiting device acts in both directions of flow, that is to say both in the direction of flow from the air conditioning compressor in the air conditioner as well as in the reverse flow direction. This has the advantage that even when using a check valve, a pressure limit for the entire high-pressure area of the air conditioning is ensured in front of and behind the check valve.
  • differential pressure-limiting device is a valve device that is reversible, reusable.
  • an air-conditioning compressor is preferred in which the differential pressure-limiting device is a rupture disk.
  • Another inventive air compressor is characterized in that the rupture disk is integrated in the check valve. Also, an air-conditioning compressor is preferred in which the pressure difference for the triggering of the rupture disk is greater than the pressure difference for the check valve. This has the advantage that initially an increase in pressure above the maximum pressure at the compressor outlet via the check valve can act on the pressure limiting valve arranged behind it. Only in the event of jamming or failure of the check valve will then trigger the differential pressure limiting and connect the increased pressure at the compressor output to the pressure relief valve in the other part of the high pressure line of the air conditioner.
  • a compressor is preferred in which the differential pressure limiting device on the high pressure side of the air conditioning unit connects the air conditioning compressor and the remaining high pressure part of the air conditioning system, ie both system parts, with the actual pressure limiting valve.
  • FIG. 1 shows schematically the high pressure area of an air conditioning system with an air conditioning compressor with a differential pressure limiting device.
  • FIG. 2 shows the high-pressure region of an air conditioning system with a differential pressure limiting valve.
  • FIG. 3 shows the high-pressure region of an air conditioning system with a rupture disk integrated in a check valve as a differential pressure limitation.
  • FIG. 1 shows the high-pressure region of an air-conditioning system including an air-conditioning compressor 1.
  • the air conditioning compressor 1 sucks refrigerant, compresses it and conveys it via a check valve 3 in an outlet 11, with which the outer high-pressure part of the air conditioner begins. From the outlet line 11, the refrigerant first flows through a gas cooler 5, then via an inner heat exchanger 7 and finally reaches the expansion valve 9, where the refrigerant expands to a lower pressure. Thus, the high pressure area of the air conditioner goes into the low pressure area, which is not considered here.
  • the compressor 1 has a housing 13 in which both the check valve 3 and a pressure limiting device 15 and a differential pressure limiting device 17 are arranged.
  • the check valve 3 is required to improve the starting performance of the stroke volume-adjustable compressor 1 and to ensure the clutchless drive of the compressor 1 for the shut-off air compressor operation.
  • the check valve 3 which may have, for example, an opening pressure of 2 bar, builds up directly at the start of a certain pressure in the compressor 1, which ensures a swinging of the compressor engine and thus for a immediately beginning promotion of the air conditioning compressor 1.
  • Downstream of the check valve 3 is a pressure limiting device 15, for example in the form of a pressure limiting valve or a rupture disc, arranged which opens, for example, when a maximum pressure of about 160 bar is exceeded and prevents further pressure increase.
  • This pressure limiting device 15 thus secures via the check valve 3 both the maximum pressure of the compressor 1 and the remaining high-pressure part of the air conditioning system up to the expansion valve 9.
  • a differential pressure limiting device 17 can be operative which, for example, connects the air conditioning compressor 1 and the remaining high pressure area of the air conditioning system at a differential pressure of 10 bar in both directions.
  • such a differential pressure limiting device is shown schematically as a differential pressure valve.
  • Parallel to the check valve 3, an effective in the same flow direction check valve 19 and an effective in the opposite direction check valve 21 are arranged.
  • the valves 19 and 21, for example, each have an opening pressure of 10 bar, so that at a pressure difference between the air conditioning compressor and the other high pressure area 23 of the air conditioner both parts of the system at a pressure difference of 10 bar with each other and thus connected to the pressure relief valve 15.
  • the opening pressure of the differential pressure limiting device for example, 10 bar, higher than the differential pressure of the check valve 3, as this normally fulfills the safety function with the pressure relief valve 15 arranged behind both for the compressor 1 and for the high pressure area 23 of the air conditioner.
  • the piston 31 of the check valve 29 is pressed within the valve housing 33 by a coil spring 35 in the valve seat 37, wherein the coil spring 35 with a biasing force up to an opening pressure of about 2 bar, the valve 29 is closed.
  • the refrigerant from the compressor 1 via the line 39 to the output line 11 of the air compressor in the high-pressure region 23 of the air conditioning can be passed.
  • the rupture disk 25 will break and thus the line 41 between the air conditioning compressor 1 and the high-pressure region 23 of the air conditioner will be effective.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Separation By Low-Temperature Treatments (AREA)
EP06806685A 2005-11-09 2006-11-04 Compresseur de climatisation a systeme de limitation de la pression differentielle Not-in-force EP1948927B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005053451 2005-11-09
PCT/EP2006/010586 WO2007054243A1 (fr) 2005-11-09 2006-11-04 Compresseur de climatisation a systeme de limitation de la pression differentielle

Publications (2)

Publication Number Publication Date
EP1948927A1 true EP1948927A1 (fr) 2008-07-30
EP1948927B1 EP1948927B1 (fr) 2009-08-05

Family

ID=37668450

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06806685A Not-in-force EP1948927B1 (fr) 2005-11-09 2006-11-04 Compresseur de climatisation a systeme de limitation de la pression differentielle

Country Status (8)

Country Link
US (1) US20080282716A1 (fr)
EP (1) EP1948927B1 (fr)
JP (1) JP4739422B2 (fr)
KR (1) KR101261398B1 (fr)
CN (1) CN101305185B (fr)
AT (1) ATE438800T1 (fr)
DE (2) DE112006003052A5 (fr)
WO (1) WO2007054243A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102313410B (zh) * 2011-08-31 2013-01-02 浙江盾安机械有限公司 节流阀
DE102011117354A1 (de) * 2011-10-29 2013-05-02 Volkswagen Aktiengesellschaft Klimakompressor für ein Kraftfahrzeug
WO2015086326A1 (fr) * 2013-12-13 2015-06-18 Magna Powertrain Bad Homburg GmbH Compresseur de climatisation
CN104748430B (zh) * 2015-03-31 2018-02-06 广东美的暖通设备有限公司 多联机系统
EP3597970A1 (fr) * 2018-07-16 2020-01-22 Goodrich Corporation Ensemble de soupape

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DE3721388C1 (de) * 1987-06-29 1988-12-08 Sueddeutsche Kuehler Behr Vorrichtung zur Klimatisierung des Innenraums von Personenkraftwagen
JPH01281369A (ja) * 1988-05-06 1989-11-13 Fuji Electric Co Ltd 冷凍機
US5251852A (en) * 1991-09-06 1993-10-12 General Electric Company Thermal fuel transfer and tank isolation to reduce unusable fuel
US5782259A (en) * 1994-06-16 1998-07-21 Ledbetter; Harold J. Pressure relief valve
US5596507A (en) * 1994-08-15 1997-01-21 Jones; Jeffrey K. Method and apparatus for predictive maintenance of HVACR systems
JP3582284B2 (ja) * 1997-03-13 2004-10-27 株式会社豊田自動織機 冷凍回路及び圧縮機
JP3820766B2 (ja) * 1998-03-06 2006-09-13 株式会社豊田自動織機 圧縮機
JP3783434B2 (ja) * 1998-04-13 2006-06-07 株式会社豊田自動織機 容量可変型斜板式圧縮機、及び空調用冷房回路
WO2000020808A1 (fr) * 1998-10-08 2000-04-13 Zexel Valeo Climate Control Corporation Cycle frigorifique
US20040179957A1 (en) * 1998-10-28 2004-09-16 Ewan Choroszylow Novel gas booster system
JP3389877B2 (ja) * 1999-03-26 2003-03-24 トヨタ自動車株式会社 ポンプ装置および液圧システム
JP3780784B2 (ja) * 1999-11-25 2006-05-31 株式会社豊田自動織機 空調装置および容量可変型圧縮機の制御弁
AU2001275655A1 (en) * 2000-07-06 2002-01-14 Luk Fahrzeug-Hydraulik Gmbh And Co. Kg Safety device for an air-conditioning compressor
DE10130841A1 (de) * 2000-07-06 2002-03-07 Behr Gmbh & Co Sicherheitseinrichtung für Klimakompressor
JP4081965B2 (ja) * 2000-07-07 2008-04-30 株式会社豊田自動織機 容量可変型圧縮機の容量制御機構
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JP2002257043A (ja) * 2001-03-06 2002-09-11 Toyota Industries Corp 圧縮機
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Also Published As

Publication number Publication date
JP2009514733A (ja) 2009-04-09
JP4739422B2 (ja) 2011-08-03
WO2007054243A1 (fr) 2007-05-18
DE112006003052A5 (de) 2008-10-23
ATE438800T1 (de) 2009-08-15
CN101305185B (zh) 2010-12-15
US20080282716A1 (en) 2008-11-20
KR20080066963A (ko) 2008-07-17
CN101305185A (zh) 2008-11-12
EP1948927B1 (fr) 2009-08-05
KR101261398B1 (ko) 2013-05-07
DE502006004468D1 (de) 2009-09-17

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