US20080282716A1 - Air Conditioning Compressor Comprising a Differential Pressure Control Device - Google Patents

Air Conditioning Compressor Comprising a Differential Pressure Control Device Download PDF

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Publication number
US20080282716A1
US20080282716A1 US12/092,810 US9281006A US2008282716A1 US 20080282716 A1 US20080282716 A1 US 20080282716A1 US 9281006 A US9281006 A US 9281006A US 2008282716 A1 US2008282716 A1 US 2008282716A1
Authority
US
United States
Prior art keywords
air conditioning
pressure control
control device
check valve
conditioning compressor
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.)
Abandoned
Application number
US12/092,810
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English (en)
Inventor
Willi Parsch
Thomas Di Vito
Jan Hinrichs
Robert Mager
Jurgen 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
Individual
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 Individual filed Critical Individual
Assigned to IXETIC MAC GMBH, BAYERISCHE MOTOREN WERKE AKTIENGESELLSCHAFT reassignment IXETIC MAC GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WERTENBACH, JURGEN, MAGER, ROBERT, DI VITO, THOMAS, HINRICHS, JAN, PARSCH, WILLI
Publication of US20080282716A1 publication Critical patent/US20080282716A1/en
Abandoned 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
    • 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, wherein the air conditioning compressor comprises a check valve and a pressure control device at the high pressure outlet.
  • Compressors of this type are known.
  • the integration of the check valve is required to improve the starting behavior of the displacement-adjustable compressor and to safeguard the coupling-free drive of the compressor for the switched-off air conditioning operation.
  • This check valve is installed in the high pressure region of the system and, at least in the case of a pressure gradient counter to the throughput direction of the check valve in the high pressure side, divides the high pressure side into two partial regions.
  • a pressure control valve is integrated on the high pressure side in the air conditioning compressor, the valve being disposed downstream in front of the check valve.
  • an air conditioning compressor for air conditioning systems in motor vehicles, wherein the air conditioning compressor comprises a check valve and a pressure control device on the high pressure outlet, for example a pressure control valve or a bursting disk, wherein the pressure control device is disposed downstream behind the check valve and wherein a differential pressure control device is disposed in parallel to the check valve.
  • a pressure control device is disposed downstream behind the check valve and wherein a differential pressure control device is disposed in parallel to the check valve.
  • the differential pressure control device acts in both flow directions, which is to say both in the flow direction from the air conditioning compressor into the air conditioning system, and also in the opposite flow direction.
  • differential pressure control device is a valve device, which is to say a device that is reversible and reusable.
  • differential pressure control device is a bursting disk.
  • a further air conditioning compressor according to the invention is characterized in that the bursting disk is integrated in the check valve. Also preferred is an air conditioning compressor, wherein the pressure differential for triggering the bursting disk is greater than the pressure differential for the check valve. This has the advantage that first a pressure increase beyond the maximum pressure can act at the compressor outlet via the check valve onto the pressure control valve disposed downstream thereof. Only if the check valve jams or fails will the differential pressure control be triggered and connect the elevated pressure at the compressor outlet to the pressure control valve in the other part of the high pressure line of the air conditioning system.
  • a compressor is preferred, wherein the differential pressure control device on the high pressure side of the air conditioning system connects the air conditioning compressor and the remaining high pressure part of the air conditioning system, which is to say both system parts, to the actual pressure control valve.
  • FIG. 1 is a schematic illustration of the high pressure region of an air conditioning system, comprising an air conditioning compressor having a differential pressure control device.
  • FIG. 2 shows the high pressure region of an air conditioning system comprising a differential pressure control valve.
  • FIG. 3 shows the high pressure region of an air conditioning system comprising a bursting disk integrated in a check valve as the differential pressure control.
  • FIG. 1 shows the high pressure region of an air conditioning system, including an air conditioning compressor 1 .
  • the air conditioning compressor 1 takes in coolant, compresses it, and then pumps it via a check valve 3 into an outlet line 11 , where the outer high pressure part of the air conditioning system beings. Starting at the outlet line 11 , the coolant first flows via a gas cooler 5 , then via an inner heat exchanger 7 , until it reaches the expansion valve 9 , where the coolant is expanded at lower pressure.
  • the high pressure region of the air conditioning system thus transitions into the low pressure region, which is not described here.
  • the compressor 1 comprises a housing 13 , in which both the check valve 3 and a pressure control device 15 and a differential pressure control device 17 are disposed.
  • the check valve 13 is required in order to improve the starting behavior of the displacement-adjustable compressor 1 and to safeguard the coupling-free drive of the compressor 1 for the switched-off air conditioning compressor operation.
  • the check valve 3 which can have an opening pressure of 2 bar, for example, directly upon starting a certain pressure level builds in the compressor 1 , which ensures swiveling of the compressor power unit and therefore immediate operation of the air conditioning compressor 1 .
  • a pressure control device 15 Downstream, behind the check valve 3 , a pressure control device 15 , for example in the form of a pressure control valve or a bursting disk, is disposed, which opens, for example, when a maximum pressure of about 160 bar is exceeded and prevents further increase in pressure.
  • This pressure control device 15 thus also safeguards the maximum pressure of the compressor 1 and the remaining high pressure part of the air conditioning system to the expansion valve 9 by means of the check valve 3 .
  • a differential pressure control device 17 can become active, which, for example at a differential pressure of 10 bar in both directions, connects the air conditioning compressor 1 and the remaining high pressure region of the air conditioning system with each other.
  • FIG. 2 shows such a differential pressure control device configured as a differential pressure valve in a schematic illustration.
  • a check valve 19 acting in the same flow direction and a check valve 21 acting in the opposite direction are provided in parallel to the check valve 3 .
  • the valves 19 and 21 for example, have an opening pressure of 10 bar, so that in the case of a pressure differential between the air conditioning compressor and the remaining high pressure region 23 of the air conditioning system both system parts can be connected to each other at a pressure differential of 10 bar, and consequently also to the pressure control valve 15 .
  • the opening pressure of the differential pressure control device for example 10 bar, is greater than the differential pressure of the check valve 3 because in normal operation the valve also fulfills the safety function with the pressure control valve 15 disposed downstream thereof, both for the compressor 1 and for the high pressure region 23 of the air conditioning system.
  • the higher pressure differential is particularly necessary for safeguarding the differential pressure in the event a bursting disk 25 is used within the check valve 29 , as is shown in FIG. 3 , because the bursting disk 25 is not supposed to be destroyed during normal operation, but instead the check valve 29 with the opening pressure of about 2 bar is required for the starting and swiveling of the compressor 1 and is supposed to connect the compressor 1 to the high pressure region 23 of the air conditioning system.
  • the use of a bursting disk 25 within the piston 31 of the check valve 29 offers the special advantage that no additional space is required for the differential pressure control element because it can be integrated in the existing check valve.
  • the piston 31 of the check valve 29 inside the valve housing 33 is pushed into the valve seat 37 by a helical spring 35 , wherein the helical spring 35 keeps the valve 29 closed at a prestressing force up to an opening pressure of about 2 bar.
  • the coolant can be conducted from the compressor 1 via the line 39 to the outlet line 11 of the air conditioning compressor into the high pressure region 23 of the air conditioning system.
  • the pressure differential of, for example, 10 bar on the bursting disk 25 is exceeded in one or the other direction, the bursting disk 25 will break, thereby activating the line 41 between the air conditioning compressor 1 and the high pressure region 23 of the air conditioning system. Due to the differential pressure device in the form of the bursting disk 25 , thus both system parts on the high pressure side are connected to the pressure control valve 15 , and thereby secured, in the event the check valve 29 jams or fails.

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)
US12/092,810 2005-11-09 2006-11-04 Air Conditioning Compressor Comprising a Differential Pressure Control Device Abandoned US20080282716A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102005053451.1 2005-11-09
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 (1)

Publication Number Publication Date
US20080282716A1 true US20080282716A1 (en) 2008-11-20

Family

ID=37668450

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/092,810 Abandoned US20080282716A1 (en) 2005-11-09 2006-11-04 Air Conditioning Compressor Comprising a Differential Pressure Control Device

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)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3597970A1 (fr) * 2018-07-16 2020-01-22 Goodrich Corporation Ensemble de soupape

Families Citing this family (4)

* 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

Citations (14)

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US5251852A (en) * 1991-09-06 1993-10-12 General Electric Company Thermal fuel transfer and tank isolation to reduce unusable fuel
US5596507A (en) * 1994-08-15 1997-01-21 Jones; Jeffrey K. Method and apparatus for predictive maintenance of HVACR systems
US6244159B1 (en) * 1998-04-13 2001-06-12 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Variable displacement type swash plate compressor and displacement control valve
US6341947B1 (en) * 1999-03-26 2002-01-29 Toyota Jidosha Kabushiki Kaisha Pump device wherein detection of failure of one of pumps causes a change in the manner of control of the pump or pumps to compensate for the failure
US6457319B1 (en) * 1999-11-25 2002-10-01 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Air conditioner and control valve in variable displacement compressor
US6517323B2 (en) * 2000-07-07 2003-02-11 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Displacement control mechanism for variable displacement type compressor
US6644066B1 (en) * 2002-06-14 2003-11-11 Liebert Corporation Method and apparatus to relieve liquid pressure from receiver to condenser when the receiver has filled with liquid due to ambient temperature cycling
US20040028533A1 (en) * 2002-08-12 2004-02-12 Chou Wen San Cylinder housing for air compressor
US20040179957A1 (en) * 1998-10-28 2004-09-16 Ewan Choroszylow Novel gas booster system
US20040184925A1 (en) * 2003-02-19 2004-09-23 Yoshihiro Ochiai Control valve system
US20050063840A1 (en) * 2002-08-12 2005-03-24 Chou Wen San Air compressor having stable configuration
US20050123409A1 (en) * 2003-10-27 2005-06-09 Masaki Ota Controller for variable displacement compressor and control method for the same
US20050276700A1 (en) * 2004-06-11 2005-12-15 Tgk Co., Ltd. Control valve for variable displacement compressor
US20060124170A1 (en) * 2002-11-07 2006-06-15 Luk Fahrzeug-Hydraulik Gmbh & Co., Kg Compressor

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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
US5782259A (en) * 1994-06-16 1998-07-21 Ledbetter; Harold J. Pressure relief valve
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
WO2000020808A1 (fr) * 1998-10-08 2000-04-13 Zexel Valeo Climate Control Corporation Cycle frigorifique
DE10130843A1 (de) * 2000-07-06 2002-02-28 Luk Fahrzeug Hydraulik Sicherheitseinrichtung für Klimakompressor
AU2001276281A1 (en) * 2000-07-06 2002-01-14 Behr Gmbh And Co. Safety device for an air-conditioning compressor
US20020096210A1 (en) * 2001-01-22 2002-07-25 Paul Schwarz Safety valve and safety valve system
JP2002257043A (ja) * 2001-03-06 2002-09-11 Toyota Industries Corp 圧縮機
JP2003254257A (ja) * 2002-03-04 2003-09-10 Yoshio Imada 脱圧機能を持つピストンポンプ

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5251852A (en) * 1991-09-06 1993-10-12 General Electric Company Thermal fuel transfer and tank isolation to reduce unusable fuel
US5596507A (en) * 1994-08-15 1997-01-21 Jones; Jeffrey K. Method and apparatus for predictive maintenance of HVACR systems
US6244159B1 (en) * 1998-04-13 2001-06-12 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Variable displacement type swash plate compressor and displacement control valve
US20040179957A1 (en) * 1998-10-28 2004-09-16 Ewan Choroszylow Novel gas booster system
US6341947B1 (en) * 1999-03-26 2002-01-29 Toyota Jidosha Kabushiki Kaisha Pump device wherein detection of failure of one of pumps causes a change in the manner of control of the pump or pumps to compensate for the failure
US6457319B1 (en) * 1999-11-25 2002-10-01 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Air conditioner and control valve in variable displacement compressor
US6517323B2 (en) * 2000-07-07 2003-02-11 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Displacement control mechanism for variable displacement type compressor
US6644066B1 (en) * 2002-06-14 2003-11-11 Liebert Corporation Method and apparatus to relieve liquid pressure from receiver to condenser when the receiver has filled with liquid due to ambient temperature cycling
US20040028533A1 (en) * 2002-08-12 2004-02-12 Chou Wen San Cylinder housing for air compressor
US6846162B2 (en) * 2002-08-12 2005-01-25 Wen San Chou Cylinder housing for air compressor
US20050063840A1 (en) * 2002-08-12 2005-03-24 Chou Wen San Air compressor having stable configuration
US7462018B2 (en) * 2002-08-12 2008-12-09 Wen San Chou Air compressor having stable configuration
US20060124170A1 (en) * 2002-11-07 2006-06-15 Luk Fahrzeug-Hydraulik Gmbh & Co., Kg Compressor
US20040184925A1 (en) * 2003-02-19 2004-09-23 Yoshihiro Ochiai Control valve system
US20050123409A1 (en) * 2003-10-27 2005-06-09 Masaki Ota Controller for variable displacement compressor and control method for the same
US20050276700A1 (en) * 2004-06-11 2005-12-15 Tgk Co., Ltd. Control valve for variable displacement compressor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3597970A1 (fr) * 2018-07-16 2020-01-22 Goodrich Corporation Ensemble de soupape

Also Published As

Publication number Publication date
KR101261398B1 (ko) 2013-05-07
DE502006004468D1 (de) 2009-09-17
EP1948927B1 (fr) 2009-08-05
ATE438800T1 (de) 2009-08-15
CN101305185A (zh) 2008-11-12
KR20080066963A (ko) 2008-07-17
JP2009514733A (ja) 2009-04-09
JP4739422B2 (ja) 2011-08-03
WO2007054243A1 (fr) 2007-05-18
EP1948927A1 (fr) 2008-07-30
DE112006003052A5 (de) 2008-10-23
CN101305185B (zh) 2010-12-15

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Legal Events

Date Code Title Description
AS Assignment

Owner name: BAYERISCHE MOTOREN WERKE AKTIENGESELLSCHAFT, GERMA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:PARSCH, WILLI;DI VITO, THOMAS;HINRICHS, JAN;AND OTHERS;REEL/FRAME:021521/0874;SIGNING DATES FROM 20080605 TO 20080818

Owner name: IXETIC MAC GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:PARSCH, WILLI;DI VITO, THOMAS;HINRICHS, JAN;AND OTHERS;REEL/FRAME:021521/0874;SIGNING DATES FROM 20080605 TO 20080818

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION