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EP1722176A3 - Differential pressure valve - Google Patents

Differential pressure valve Download PDF

Info

Publication number
EP1722176A3
EP1722176A3 EP06009027A EP06009027A EP1722176A3 EP 1722176 A3 EP1722176 A3 EP 1722176A3 EP 06009027 A EP06009027 A EP 06009027A EP 06009027 A EP06009027 A EP 06009027A EP 1722176 A3 EP1722176 A3 EP 1722176A3
Authority
EP
European Patent Office
Prior art keywords
differential pressure
pressure valve
throttle
throttle element
flow
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.)
Withdrawn
Application number
EP06009027A
Other languages
German (de)
French (fr)
Other versions
EP1722176A2 (en
Inventor
Achim Dr.-Ing. Wiebelt
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.)
Mahle Behr GmbH and Co KG
Original Assignee
Behr 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
Application filed by Behr GmbH and Co KG filed Critical Behr GmbH and Co KG
Publication of EP1722176A2 publication Critical patent/EP1722176A2/en
Publication of EP1722176A3 publication Critical patent/EP1722176A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/31—Expansion valves
    • F25B41/33—Expansion valves with the valve member being actuated by the fluid pressure, e.g. by the pressure of the refrigerant
    • 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
    • F25B2309/00—Gas cycle refrigeration machines
    • F25B2309/06—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide
    • 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
    • F25B2309/00—Gas cycle refrigeration machines
    • F25B2309/06—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide
    • F25B2309/061—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide with cycle highest pressure above the supercritical pressure
    • 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
    • F25B2341/00—Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
    • F25B2341/06—Details of flow restrictors or expansion valves
    • F25B2341/063—Feed forward expansion valves
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/01—Geometry problems, e.g. for reducing size
    • 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
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • F25B2600/2505—Fixed-differential control valves
    • 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
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
    • F25B9/008—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant being carbon dioxide

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Safety Valves (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Temperature-Responsive Valves (AREA)

Abstract

Die Erfindung betrifft ein Differenzdruckventil (1), insbesondere für ein Expansionsorgan einer Kraftfahrzeugklimaanlage, zur Regelung eines Durchflusses eines Fluids in Abhängigkeit einer Druckdifferenz, die zwischen der Hochdruckseite (HD) und der Saugdruckseite (SD) des Differenzdruckventils (1) anliegt, wobei das Differenzdruckventil ein Drosselelement (3), das den Durchfluss durch eine Drosselstelle (2) regelt, und eine das Drosselelement (3) in Schließrichtung vorspannende Feder (5) aufweist, und ferner das Drosselelement (3) einen kugelförmigen Kopf (4) und einen Schaft aufweist.

Figure imgaf001
The invention relates to a differential pressure valve (1), in particular for an expansion element of an automotive air conditioning system, for controlling a flow of a fluid in response to a pressure difference between the high pressure side (HD) and the suction pressure side (SD) of the differential pressure valve (1), wherein the differential pressure valve a throttle element (3) which regulates the flow through a throttle point (2), and a spring (5) biasing the throttle element (3) in the closing direction, and further comprising the throttle element (3) a spherical head (4) and a shaft ,
Figure imgaf001
EP06009027A 2005-05-13 2006-05-02 Differential pressure valve Withdrawn EP1722176A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005023083A DE102005023083A1 (en) 2005-05-13 2005-05-13 Differential pressure valve

Publications (2)

Publication Number Publication Date
EP1722176A2 EP1722176A2 (en) 2006-11-15
EP1722176A3 true EP1722176A3 (en) 2007-09-19

Family

ID=36956132

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06009027A Withdrawn EP1722176A3 (en) 2005-05-13 2006-05-02 Differential pressure valve

Country Status (2)

Country Link
EP (1) EP1722176A3 (en)
DE (1) DE102005023083A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009060465A2 (en) * 2007-07-18 2009-05-14 Vijay Appa Kasar Energy saving expansion device for refrigeration & other industries

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE821640C (en) * 1950-04-16 1951-11-19 Flitsch & Egehlhof Device for regulating compression refrigeration systems
FR1287235A (en) * 1961-04-26 1962-03-09 American Radiator & Standard Valve
US3139903A (en) * 1961-02-21 1964-07-07 Itt Expansion valve with adjustable metering orifice
JPH09133435A (en) * 1995-11-08 1997-05-20 Mitsubishi Heavy Ind Ltd Expansion valve
WO2001027543A1 (en) * 1999-10-08 2001-04-19 Zexel Valeo Climate Control Corporation Refrigerating cycle
WO2001063185A1 (en) * 2000-02-25 2001-08-30 Zexel Valeo Climate Control Corporation Refrigerating cycle
EP1143212A1 (en) * 1998-11-20 2001-10-10 Zexel Valeo Climate Control Corporation Expansion device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB677632A (en) * 1948-03-10 1952-08-20 Refrigerator Components Ltd Improvements in or relating to expansion valves for use in refrigerators
DE2749250C3 (en) * 1977-11-03 1980-09-11 Danfoss A/S, Nordborg (Daenemark) Valve for liquid injection into a refrigerant evaporator
JPH03100768U (en) * 1990-01-26 1991-10-21
DE4029909C2 (en) * 1990-09-21 1998-05-14 Bosch Gmbh Robert check valve
GB2277366B (en) * 1993-04-21 1996-12-04 Northvale Korting Limited Fluid control valve
DE19633844B4 (en) * 1995-09-02 2006-05-11 Volkswagen Ag Expansion valve in an air conditioner

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE821640C (en) * 1950-04-16 1951-11-19 Flitsch & Egehlhof Device for regulating compression refrigeration systems
US3139903A (en) * 1961-02-21 1964-07-07 Itt Expansion valve with adjustable metering orifice
FR1287235A (en) * 1961-04-26 1962-03-09 American Radiator & Standard Valve
JPH09133435A (en) * 1995-11-08 1997-05-20 Mitsubishi Heavy Ind Ltd Expansion valve
EP1143212A1 (en) * 1998-11-20 2001-10-10 Zexel Valeo Climate Control Corporation Expansion device
WO2001027543A1 (en) * 1999-10-08 2001-04-19 Zexel Valeo Climate Control Corporation Refrigerating cycle
WO2001063185A1 (en) * 2000-02-25 2001-08-30 Zexel Valeo Climate Control Corporation Refrigerating cycle

Also Published As

Publication number Publication date
DE102005023083A1 (en) 2006-11-30
EP1722176A2 (en) 2006-11-15

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