JPH0554023B2 - - Google Patents
Info
- Publication number
- JPH0554023B2 JPH0554023B2 JP56183498A JP18349881A JPH0554023B2 JP H0554023 B2 JPH0554023 B2 JP H0554023B2 JP 56183498 A JP56183498 A JP 56183498A JP 18349881 A JP18349881 A JP 18349881A JP H0554023 B2 JPH0554023 B2 JP H0554023B2
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- compressor
- pressure
- temperature
- valve
- 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 - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/10—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber
- F04C28/16—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using lift valves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3205—Control means therefor
- B60H1/321—Control means therefor for preventing the freezing of a heat exchanger
-
- 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
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/04—Compression machines, plants or systems with non-reversible cycle with compressor of rotary type
-
- 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
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
-
- 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
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
- F25B41/24—Arrangement of shut-off valves for disconnecting a part of the refrigerant cycle, e.g. an outdoor part
-
- 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
- F25B49/022—Compressor control arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H2001/3269—Cooling devices output of a control signal
- B60H2001/327—Cooling devices output of a control signal related to a compressing unit
- B60H2001/3275—Cooling devices output of a control signal related to a compressing unit to control the volume of a compressor
-
- 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
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/026—Compressor control by controlling unloaders
- F25B2600/0261—Compressor control by controlling unloaders external to the compressor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56183498A JPS5885062A (ja) | 1981-11-16 | 1981-11-16 | 自動車用空調装置 |
US06/603,413 US4531378A (en) | 1981-11-16 | 1984-04-24 | Automotive refrigeration system |
US06/674,368 US4578960A (en) | 1981-11-16 | 1984-11-26 | Automotive refrigeration |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56183498A JPS5885062A (ja) | 1981-11-16 | 1981-11-16 | 自動車用空調装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5885062A JPS5885062A (ja) | 1983-05-21 |
JPH0554023B2 true JPH0554023B2 (en]) | 1993-08-11 |
Family
ID=16136868
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56183498A Granted JPS5885062A (ja) | 1981-11-16 | 1981-11-16 | 自動車用空調装置 |
Country Status (2)
Country | Link |
---|---|
US (2) | US4531378A (en]) |
JP (1) | JPS5885062A (en]) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6022515A (ja) * | 1983-07-18 | 1985-02-05 | Diesel Kiki Co Ltd | 車輌用空気調和装置 |
DE3472717D1 (en) * | 1983-12-28 | 1988-08-18 | Saginomiya Seisakusho Inc | Differential pressure valve |
JPS63243482A (ja) * | 1987-03-31 | 1988-10-11 | Aisin Seiki Co Ltd | 回転ロ−タ装置 |
JPS63266178A (ja) * | 1987-04-22 | 1988-11-02 | Diesel Kiki Co Ltd | 可変容量型圧縮機 |
US4841734A (en) * | 1987-11-12 | 1989-06-27 | Eaton Corporation | Indicating refrigerant liquid saturation point |
US4877081A (en) * | 1988-03-22 | 1989-10-31 | Hitachi, Ltd. | Air-conditioning apparatus for automobiles |
WO1999000631A1 (en) * | 1997-06-28 | 1999-01-07 | Daewoo Electronics Co., Ltd. | Apparatus and method for preventing an evaporator for an air-conditioning system from freezing |
US6145329A (en) * | 1998-11-23 | 2000-11-14 | General Motors Corporation | Method for the control of the switching on and off behavior of an air conditioning system |
US6311512B1 (en) * | 2000-05-18 | 2001-11-06 | Carrier Corporation | Refrigerated merchandiser system |
DE10027617A1 (de) * | 2000-06-02 | 2001-12-06 | Mannesmann Vdo Ag | Einrichtung zum Antrieb eines Klimakompressors |
US6357242B1 (en) * | 2000-07-20 | 2002-03-19 | Delphi Technologies, Inc. | Control system and method for suppressing head pressure spikes in a vehicle air conditioning system |
GB2367332B (en) * | 2000-09-25 | 2003-12-03 | Compair Uk Ltd | Improvements in multi-stage screw compressor drive arrangements |
US7748224B2 (en) | 2004-10-28 | 2010-07-06 | Caterpillar Inc | Air-conditioning assembly |
US8555665B2 (en) | 2007-03-20 | 2013-10-15 | Volvo Technology Corporation | Method for operating a variable displacement compressor and system with a variable displacement compressor |
DE102019100064B3 (de) * | 2019-01-03 | 2020-07-09 | Heinrich Georg Gmbh Maschinenfabrik | Verfahren und Positioniersystem zur Herstellung von Transformatorkernen |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1780442A (en) * | 1927-09-30 | 1930-11-04 | Frigidaire Corp | Refrigerating apparatus |
DE569694C (de) * | 1929-03-15 | 1933-02-06 | Karl Glaessel | Verfahren zum Anpassen der von dem Verdichter einer Kaeltemaschinenanlage gefoerderten Gasmenge an die Verdampferleistung |
US2019724A (en) * | 1934-09-01 | 1935-11-05 | Johnson Service Co | Refrigerating system |
US2316066A (en) * | 1940-08-03 | 1943-04-06 | Haymond Paul | Control apparatus |
US2328824A (en) * | 1942-02-19 | 1943-09-07 | Gen Motors Corp | Refrigerating apparatus |
US2577902A (en) * | 1947-02-24 | 1951-12-11 | Carrier Corp | Control bulb for thermal expansion valves |
US2983111A (en) * | 1958-11-17 | 1961-05-09 | Trane Co | Refrigeration machine and method of controlling same |
IT961579B (it) * | 1972-04-19 | 1973-12-10 | Fiat Spa | Impianto di refrigerazione con valvola di controllo a doppia soglia |
US3803863A (en) * | 1972-06-20 | 1974-04-16 | Borg Warner | Control system for refrigeration compressor |
US3977207A (en) * | 1975-06-23 | 1976-08-31 | General Motors Corporation | Freeze throttling valve |
JPS5352196U (en]) * | 1976-10-06 | 1978-05-04 | ||
JPS5519908A (en) * | 1978-07-26 | 1980-02-13 | Toshiba Corp | Refrigerating plant |
US4342199A (en) * | 1980-10-03 | 1982-08-03 | Dunham-Bush, Inc. | Screw compressor slide valve engine RPM tracking system |
-
1981
- 1981-11-16 JP JP56183498A patent/JPS5885062A/ja active Granted
-
1984
- 1984-04-24 US US06/603,413 patent/US4531378A/en not_active Expired - Lifetime
- 1984-11-26 US US06/674,368 patent/US4578960A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPS5885062A (ja) | 1983-05-21 |
US4578960A (en) | 1986-04-01 |
US4531378A (en) | 1985-07-30 |
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