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GB1441881A - Gas compressors - Google Patents

Gas compressors

Info

Publication number
GB1441881A
GB1441881A GB682274A GB682274A GB1441881A GB 1441881 A GB1441881 A GB 1441881A GB 682274 A GB682274 A GB 682274A GB 682274 A GB682274 A GB 682274A GB 1441881 A GB1441881 A GB 1441881A
Authority
GB
United Kingdom
Prior art keywords
windings
motor
pump
valve
feb
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
Application number
GB682274A
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.)
PRESTCOLD Ltd
Original Assignee
PRESTCOLD Ltd
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 PRESTCOLD Ltd filed Critical PRESTCOLD Ltd
Priority to GB682274A priority Critical patent/GB1441881A/en
Publication of GB1441881A publication Critical patent/GB1441881A/en
Expired legal-status Critical Current

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
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/06—Cooling; Heating; Prevention of freezing
    • 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
    • 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
    • F25B31/00—Compressor arrangements
    • F25B31/006—Cooling of compressor or motor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/24—Protection against failure of cooling arrangements, e.g. due to loss of cooling medium or due to interruption of the circulation of cooling medium

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Abstract

1441881 Refrigerators PRESTCOLD Ltd 21 Feb 1975 [14 Feb 1974] 6822/74 Heading F4H [Also in Division F1] In a gas compressor, e.g. in a refrigeration circuit, comprising a pump 1 driven by an electric motor 2, the windings of the motor are cooled by diverting part of the gas flow upstream of the pump through a passage 4 containing a solenoid valve 5 which is controlled in dependence on the temperature of the windings. As shown, the passage 4 is formed in the casing of the pump/motor unit and diverts part of the main gas flow from a point A, via the solenoid valve 5 and the windings of the motor 2, back to a point B immediately upstream of the pump inlet. An electronic controller 6 for the valve 5 includes in its circuit a number of thermistors located at different positions in the motor windings, the arrangement being such that when a fan 3 fails to maintain the windings below a predetermined temperature, the controller 6 opens the valve 5.
GB682274A 1974-02-14 1974-02-14 Gas compressors Expired GB1441881A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB682274A GB1441881A (en) 1974-02-14 1974-02-14 Gas compressors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB682274A GB1441881A (en) 1974-02-14 1974-02-14 Gas compressors

Publications (1)

Publication Number Publication Date
GB1441881A true GB1441881A (en) 1976-07-07

Family

ID=9821400

Family Applications (1)

Application Number Title Priority Date Filing Date
GB682274A Expired GB1441881A (en) 1974-02-14 1974-02-14 Gas compressors

Country Status (1)

Country Link
GB (1) GB1441881A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5144815A (en) * 1989-10-24 1992-09-08 Texas Instruments Incorporated Thermal valve for compressor
EP0730128A1 (en) * 1995-02-06 1996-09-04 Carrier Corporation Fuzzy logic control of liquid injection for motor cooling
EP1614982A3 (en) * 2004-06-29 2011-10-26 York International Corporation System and method for cooling a compressor motor
CN106715904A (en) * 2014-09-22 2017-05-24 惠而浦股份有限公司 Method for detection of incorrect opening of suction valves of multi-suction reciprocating compressors
CN107725333A (en) * 2017-10-30 2018-02-23 安徽博古特机电科技有限公司 A kind of new type compressor radiator structure
CN107869449A (en) * 2017-10-30 2018-04-03 安徽博古特机电科技有限公司 A kind of compressor cooling system

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5144815A (en) * 1989-10-24 1992-09-08 Texas Instruments Incorporated Thermal valve for compressor
EP0730128A1 (en) * 1995-02-06 1996-09-04 Carrier Corporation Fuzzy logic control of liquid injection for motor cooling
JP2637944B2 (en) 1995-02-06 1997-08-06 キャリア コーポレイション Liquid injection fuzzy logic control circuit for motor cooling
AU704600B2 (en) * 1995-02-06 1999-04-29 Carrier Corporation Fuzzy logic control of liquid injection for motor cooling
EP1614982A3 (en) * 2004-06-29 2011-10-26 York International Corporation System and method for cooling a compressor motor
CN106715904A (en) * 2014-09-22 2017-05-24 惠而浦股份有限公司 Method for detection of incorrect opening of suction valves of multi-suction reciprocating compressors
CN106715904B (en) * 2014-09-22 2020-01-03 恩布拉科压缩机工业和制冷解决方案有限公司 Method for detecting incorrect opening of suction valve of multi-suction reciprocating compressor
CN107725333A (en) * 2017-10-30 2018-02-23 安徽博古特机电科技有限公司 A kind of new type compressor radiator structure
CN107869449A (en) * 2017-10-30 2018-04-03 安徽博古特机电科技有限公司 A kind of compressor cooling system

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19940221