EP0488775A3 - Detecting system for detecting an insufficient amount of refrigerant in a cooling apparatus and compressor control system incorporating same - Google Patents

Detecting system for detecting an insufficient amount of refrigerant in a cooling apparatus and compressor control system incorporating same Download PDF

Info

Publication number
EP0488775A3
EP0488775A3 EP19910311098 EP91311098A EP0488775A3 EP 0488775 A3 EP0488775 A3 EP 0488775A3 EP 19910311098 EP19910311098 EP 19910311098 EP 91311098 A EP91311098 A EP 91311098A EP 0488775 A3 EP0488775 A3 EP 0488775A3
Authority
EP
European Patent Office
Prior art keywords
detecting
refrigerant
cooling apparatus
compressor control
insufficient amount
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Withdrawn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
EP19910311098
Other versions
EP0488775A2 (en
Inventor
Syunji Komatsu
Masaru Kuribara
Kazumitsu Kobayashi
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.)
Hitachi Unisia Automotive Ltd
Sanden Corp
Original Assignee
Japan Electronic Control Systems Co Ltd
Sanden 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
Application filed by Japan Electronic Control Systems Co Ltd, Sanden Corp filed Critical Japan Electronic Control Systems Co Ltd
Publication of EP0488775A2 publication Critical patent/EP0488775A2/en
Publication of EP0488775A3 publication Critical patent/EP0488775A3/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Withdrawn legal-status Critical Current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
    • 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
    • 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
    • F25B41/006—Fluid-circulation arrangements optical fluid control arrangements
    • 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
    • F25B2500/22—Preventing, detecting or repairing leaks of refrigeration fluids
    • F25B2500/222—Detecting refrigerant leaks

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Air-Conditioning For Vehicles (AREA)
EP19910311098 1990-11-30 1991-11-29 Detecting system for detecting an insufficient amount of refrigerant in a cooling apparatus and compressor control system incorporating same Withdrawn EP0488775A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP33706490A JPH04203866A (en) 1990-11-30 1990-11-30 Refrigerant shortage detector for cooling device
JP337064/90 1990-11-30

Publications (2)

Publication Number Publication Date
EP0488775A2 EP0488775A2 (en) 1992-06-03
EP0488775A3 true EP0488775A3 (en) 1992-09-23

Family

ID=18305091

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910311098 Withdrawn EP0488775A3 (en) 1990-11-30 1991-11-29 Detecting system for detecting an insufficient amount of refrigerant in a cooling apparatus and compressor control system incorporating same

Country Status (2)

Country Link
EP (1) EP0488775A3 (en)
JP (1) JPH04203866A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5230223A (en) * 1992-03-20 1993-07-27 Envirosystems Corporation Method and apparatus for efficiently controlling refrigeration and air conditioning systems
US7905099B2 (en) 2008-05-21 2011-03-15 Justak John F Predictive maintenance method and apparatus for HVACR systems
EP3199888A1 (en) * 2016-01-29 2017-08-02 Daikin Industries, Limited Air conditioning system
EP3199892A1 (en) * 2016-01-29 2017-08-02 Daikin Industries, Limited Air conditioning system
EP3200215B1 (en) * 2016-01-29 2018-02-28 Daikin Industries, Limited Air conditioning system
CN109073260A (en) * 2016-05-17 2018-12-21 三菱电机株式会社 Air conditioner
US11085683B2 (en) * 2018-06-22 2021-08-10 Emerson Climate Technologies Retail Solutions, Inc. Systems and methods for optical detection of refrigeration system abnormalities

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3412570A (en) * 1965-05-24 1968-11-26 George H. Pruett Sr. Radiation sensitive system for detecting refrigerant leaks
US4167858A (en) * 1976-10-27 1979-09-18 Nippondenso Co., Ltd. Refrigerant deficiency detecting apparatus
US4328682A (en) * 1980-05-19 1982-05-11 Emhart Industries, Inc. Head pressure control including means for sensing condition of refrigerant

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6310366A (en) * 1986-07-02 1988-01-16 Kowa Boseki Kk Flexible disk control device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3412570A (en) * 1965-05-24 1968-11-26 George H. Pruett Sr. Radiation sensitive system for detecting refrigerant leaks
US4167858A (en) * 1976-10-27 1979-09-18 Nippondenso Co., Ltd. Refrigerant deficiency detecting apparatus
US4328682A (en) * 1980-05-19 1982-05-11 Emhart Industries, Inc. Head pressure control including means for sensing condition of refrigerant

Also Published As

Publication number Publication date
EP0488775A2 (en) 1992-06-03
JPH04203866A (en) 1992-07-24

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