GB1441881A - Gas compressors - Google Patents
Gas compressorsInfo
- 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
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
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.
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)
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)
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 |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19940221 |