FR2257880A1 - - Google Patents
Info
- Publication number
- FR2257880A1 FR2257880A1 FR7422738A FR7422738A FR2257880A1 FR 2257880 A1 FR2257880 A1 FR 2257880A1 FR 7422738 A FR7422738 A FR 7422738A FR 7422738 A FR7422738 A FR 7422738A FR 2257880 A1 FR2257880 A1 FR 2257880A1
- Authority
- FR
- France
- 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.)
- Granted
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
- F04C28/12—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 sliding valves
- F04C28/125—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 sliding valves with sliding valves controlled by the use of fluid other than the working fluid
-
- 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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/04—Heating; Cooling; Heat insulation
- F04C29/042—Heating; Cooling; Heat insulation by injecting a fluid
-
- 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
- F25B1/047—Compression machines, plants or systems with non-reversible cycle with compressor of rotary type of screw type
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Rotary-Type Compressors (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US433418A US3885402A (en) | 1974-01-14 | 1974-01-14 | Optimized point of injection of liquid refrigerant in a helical screw rotary compressor for refrigeration use |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2257880A1 true FR2257880A1 (en) | 1975-08-08 |
FR2257880B3 FR2257880B3 (en) | 1977-05-06 |
Family
ID=23720073
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7422738A Expired FR2257880B3 (en) | 1974-01-14 | 1974-06-28 |
Country Status (10)
Country | Link |
---|---|
US (1) | US3885402A (en) |
JP (1) | JPS50102909A (en) |
BR (1) | BR7407762D0 (en) |
CA (1) | CA1001432A (en) |
DE (1) | DE2434873A1 (en) |
FR (1) | FR2257880B3 (en) |
GB (1) | GB1464996A (en) |
IT (1) | IT1014495B (en) |
SE (1) | SE404952B (en) |
ZA (1) | ZA743672B (en) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CS189674B2 (en) * | 1973-11-19 | 1979-04-30 | Hall Thermotank Prod Ltd | Method of and apparatus for compressing gas or steam and for lubricating the compressing machine |
GB1548663A (en) * | 1975-06-24 | 1979-07-18 | Maekawa Seisakusho Kk | Refrigerating apparatus |
JPS5494149A (en) * | 1978-01-06 | 1979-07-25 | Hitachi Ltd | Freezer |
JPS54163416A (en) * | 1978-06-14 | 1979-12-26 | Hitachi Ltd | Screw compressor |
US4375156A (en) * | 1980-10-03 | 1983-03-01 | Dunham-Bush, Inc. | Closed loop compressed gas system with oil mist lubricated screw compressor |
US4553911A (en) * | 1983-11-22 | 1985-11-19 | Frick Company | Method of coding the oil in screw compressors equipped with automatic variable volume ratio |
US4515540A (en) * | 1983-11-22 | 1985-05-07 | Frick Company | Variable liquid refrigerant injection port locator for screw compressor equipped with automatic variable volume ratio |
FR2618494A1 (en) * | 1987-07-21 | 1989-01-27 | Zimmern Bernard | HERMETIC REFRIGERATION COMPRESSOR WITH ECONOMIZER |
US4974427A (en) * | 1989-10-17 | 1990-12-04 | Copeland Corporation | Compressor system with demand cooling |
JPWO2007000815A1 (en) * | 2005-06-29 | 2009-01-22 | 株式会社前川製作所 | Lubricating method for two-stage screw compressor, device and operating method for refrigerating device |
WO2007106090A1 (en) * | 2006-03-13 | 2007-09-20 | Carrier Corporation | Slide valve with hot gas bypass port |
US20070251256A1 (en) * | 2006-03-20 | 2007-11-01 | Pham Hung M | Flash tank design and control for heat pumps |
US7647790B2 (en) * | 2006-10-02 | 2010-01-19 | Emerson Climate Technologies, Inc. | Injection system and method for refrigeration system compressor |
US8181478B2 (en) * | 2006-10-02 | 2012-05-22 | Emerson Climate Technologies, Inc. | Refrigeration system |
US8769982B2 (en) * | 2006-10-02 | 2014-07-08 | Emerson Climate Technologies, Inc. | Injection system and method for refrigeration system compressor |
US8096288B2 (en) * | 2008-10-07 | 2012-01-17 | Eaton Corporation | High efficiency supercharger outlet |
US8539785B2 (en) | 2009-02-18 | 2013-09-24 | Emerson Climate Technologies, Inc. | Condensing unit having fluid injection |
DE102012013267A1 (en) | 2012-07-04 | 2014-01-09 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Substrate device, preservative device and method for cryopreserving a biological sample |
GB2533621B (en) * | 2014-12-23 | 2019-04-17 | Edwards Ltd | Rotary screw vacuum pumps |
WO2018111985A1 (en) * | 2016-12-15 | 2018-06-21 | Carrier Corporation | Screw compressor with magnetic gear |
US10856464B2 (en) * | 2017-08-01 | 2020-12-08 | Capstan Ag Systems, Inc. | Systems and methods for suppressing vaporization of volatile fluids in agricultural fluid application systems |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3073514A (en) * | 1956-11-14 | 1963-01-15 | Svenska Rotor Maskiner Ab | Rotary compressors |
US3210958A (en) * | 1964-09-10 | 1965-10-12 | Gen Electric | Heat pump comprising rotary compressor including injection cooling arrangement |
GB1171291A (en) * | 1965-10-12 | 1969-11-19 | Svenska Rotor Maskiner Ab | Screw Rotor Machines |
US3795117A (en) * | 1972-09-01 | 1974-03-05 | Dunham Bush Inc | Injection cooling of screw compressors |
-
1974
- 1974-01-14 US US433418A patent/US3885402A/en not_active Expired - Lifetime
- 1974-06-04 CA CA201,635A patent/CA1001432A/en not_active Expired
- 1974-06-06 GB GB2523174A patent/GB1464996A/en not_active Expired
- 1974-06-06 SE SE7407434A patent/SE404952B/en unknown
- 1974-06-10 ZA ZA00743672A patent/ZA743672B/en unknown
- 1974-06-28 FR FR7422738A patent/FR2257880B3/fr not_active Expired
- 1974-07-09 IT IT69180/74A patent/IT1014495B/en active
- 1974-07-13 JP JP49079773A patent/JPS50102909A/ja active Pending
- 1974-07-19 DE DE2434873A patent/DE2434873A1/en not_active Withdrawn
- 1974-09-18 BR BR7762/74A patent/BR7407762D0/en unknown
Also Published As
Publication number | Publication date |
---|---|
JPS50102909A (en) | 1975-08-14 |
IT1014495B (en) | 1977-04-20 |
DE2434873A1 (en) | 1975-07-17 |
SE7407434L (en) | 1975-07-15 |
BR7407762D0 (en) | 1975-09-16 |
FR2257880B3 (en) | 1977-05-06 |
US3885402A (en) | 1975-05-27 |
SE404952B (en) | 1978-11-06 |
ZA743672B (en) | 1975-06-25 |
GB1464996A (en) | 1977-02-16 |
CA1001432A (en) | 1976-12-14 |
AU6996074A (en) | 1975-12-11 |