GB1441881A – Gas compressors
– Google Patents
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
1974-02-14
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.)
1974-02-14
Filing date
1974-02-14
Publication date
1976-07-07
1974-02-14
Application filed by PRESTCOLD Ltd
filed
Critical
PRESTCOLD Ltd
1974-02-14
Priority to GB682274A
priority
Critical
patent/GB1441881A/en
1976-07-07
Publication of GB1441881A
publication
Critical
patent/GB1441881A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
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
Improper opening detection method of multiple suction reciprocating compressor suction valve
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
1974
1974-02-14
GB
GB682274A
patent/GB1441881A/en
not_active
Expired
Cited By (8)
* 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
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
Improper opening detection method of multiple suction reciprocating compressor suction valve
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
1976-11-17
PS
Patent sealed
1994-10-19
PCNP
Patent ceased through non-payment of renewal fee
Effective date:
19940221
