DE69417398T2 - Zustandserfassungssystem zur kontrolle von arbeitsflüssigkeiten - Google Patents

Zustandserfassungssystem zur kontrolle von arbeitsflüssigkeiten

Info

Publication number
DE69417398T2
DE69417398T2 DE69417398T DE69417398T DE69417398T2 DE 69417398 T2 DE69417398 T2 DE 69417398T2 DE 69417398 T DE69417398 T DE 69417398T DE 69417398 T DE69417398 T DE 69417398T DE 69417398 T2 DE69417398 T2 DE 69417398T2
Authority
DE
Germany
Prior art keywords
detection system
status detection
controlling working
working liquids
liquids
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 - Fee Related
Application number
DE69417398T
Other languages
English (en)
Other versions
DE69417398D1 (de
Inventor
Richard Kenyon
Sandra Harper
Roy Yabuki
Chester Campbell
Alan Matthies
Michael Nolan
Virender Jain
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.)
Parker Hannifin Corp
Original Assignee
Parker Hannifin Corp
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 US08/006,235 external-priority patent/US5335513A/en
Application filed by Parker Hannifin Corp filed Critical Parker Hannifin Corp
Application granted granted Critical
Publication of DE69417398D1 publication Critical patent/DE69417398D1/de
Publication of DE69417398T2 publication Critical patent/DE69417398T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • 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
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
    • G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor
DE69417398T 1993-01-19 1994-01-18 Zustandserfassungssystem zur kontrolle von arbeitsflüssigkeiten Expired - Fee Related DE69417398T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/006,235 US5335513A (en) 1993-01-19 1993-01-19 Apparatus and method for detecting characteristics of a working fluid
US18266094A 1994-01-18 1994-01-18
PCT/US1994/001102 WO1994017347A1 (en) 1993-01-19 1994-01-18 Conditioning sensing system for controlling working fluids

Publications (2)

Publication Number Publication Date
DE69417398D1 DE69417398D1 (de) 1999-04-29
DE69417398T2 true DE69417398T2 (de) 1999-07-15

Family

ID=26675353

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69417398T Expired - Fee Related DE69417398T2 (de) 1993-01-19 1994-01-18 Zustandserfassungssystem zur kontrolle von arbeitsflüssigkeiten

Country Status (6)

Country Link
US (1) US5660052A (de)
EP (1) EP0680590B1 (de)
CA (1) CA2154261A1 (de)
DE (1) DE69417398T2 (de)
ES (1) ES2128555T3 (de)
WO (1) WO1994017347A1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5877476A (en) 1996-09-30 1999-03-02 Parker-Hannifin Corp. Apparatus and method for mass flow control of a working fluid
DE19741892C2 (de) * 1997-09-23 2001-07-12 Mannesmann Vdo Ag Verfahren und Vorrichtung zur Bestimmung der Quantität und Qualität einer Flüssigkeit
US6293114B1 (en) 2000-05-31 2001-09-25 Red Dot Corporation Refrigerant monitoring apparatus and method
US6357258B1 (en) * 2000-09-08 2002-03-19 Praxair Technology, Inc. Cryogenic air separation system with integrated booster and multicomponent refrigeration compression
FR2862745B1 (fr) * 2003-11-25 2007-01-05 Valeo Climatisation Organe de detente a electronique integree pour boucle a fluide refrigerant, en particulier d'un appareil de climatisation pour habitacle de vehicule
US20080190493A1 (en) * 2007-02-14 2008-08-14 Chang-Hoon Oh Sensor module, fluid circulation system having the same, and method for assembling sensor module
US20110106476A1 (en) * 2009-11-04 2011-05-05 Gm Global Technology Operations, Inc. Methods and systems for thermistor temperature processing
JP5736744B2 (ja) * 2010-01-26 2015-06-17 セイコーエプソン株式会社 熱センサーデバイス及び電子機器
US8485725B2 (en) 2010-12-21 2013-07-16 GM Global Technology Operations LLC System and method for detecting an unexpected medium or a change of medium sensed by a thermistor
US8920026B2 (en) * 2011-02-25 2014-12-30 Linear Technology Corporation Accurate current sensing with heat transfer correction
CN104390803B (zh) * 2014-12-11 2017-01-11 青岛大学 一种冰箱换热器性能测试系统制冷剂供应装置及测试方法

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3059443A (en) * 1959-01-29 1962-10-23 Arthur Berryman Alarm apparatus for refrigeration systems and the like
US3478534A (en) * 1967-08-11 1969-11-18 Controls Co Of America Thermistor controlled refrigeration expansion valve
US3744267A (en) * 1972-03-15 1973-07-10 Borg Warner Liquid level protection system for refrigeration compressor
US4167858A (en) * 1976-10-27 1979-09-18 Nippondenso Co., Ltd. Refrigerant deficiency detecting apparatus
US4484822A (en) * 1981-12-01 1984-11-27 Hancock Robert Dean Method and apparatus for determining boiling points of liquids
JPS6172964A (ja) * 1984-09-14 1986-04-15 株式会社デンソー 冷凍サイクル制御装置
US4794762A (en) * 1987-01-27 1989-01-03 Eaton Corporation Refrigerant flow control system
US4841734A (en) * 1987-11-12 1989-06-27 Eaton Corporation Indicating refrigerant liquid saturation point
DE3740719A1 (de) * 1987-12-01 1989-06-15 Endress Hauser Gmbh Co Verfahren und anordnung zur messung des wasserdampf-taupunkts in gasen
US4835976A (en) * 1988-03-14 1989-06-06 Eaton Corporation Controlling superheat in a refrigeration system
US4981369A (en) * 1988-10-20 1991-01-01 Murata Mfg. Co., Ltd. Frost and dew sensor
JPH02279966A (ja) * 1989-04-21 1990-11-15 Hitachi Ltd 空気調和機
US4944160A (en) * 1990-01-31 1990-07-31 Eaton Corporation Thermostatic expansion valve with electronic controller
US4993231A (en) * 1990-03-02 1991-02-19 Eaton Corporation Thermostatic expansion valve with electronic controller
US5144814A (en) * 1991-03-26 1992-09-08 Eaton Corporation Thermistor calibration
US5335513A (en) * 1993-01-19 1994-08-09 Parker-Hannifin Corporation Apparatus and method for detecting characteristics of a working fluid

Also Published As

Publication number Publication date
CA2154261A1 (en) 1994-08-04
WO1994017347A1 (en) 1994-08-04
US5660052A (en) 1997-08-26
EP0680590B1 (de) 1999-03-24
DE69417398D1 (de) 1999-04-29
ES2128555T3 (es) 1999-05-16
EP0680590A1 (de) 1995-11-08

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee