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
Application number
FR7422738A
Other languages
French (fr)
Other versions
FR2257880B3 (de
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.)
Dunham Bush Inc
Original Assignee
Dunham Bush Inc
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 Dunham Bush Inc filed Critical Dunham Bush Inc
Publication of FR2257880A1 publication Critical patent/FR2257880A1/fr
Application granted granted Critical
Publication of FR2257880B3 publication Critical patent/FR2257880B3/fr
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
    • 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)
FR7422738A 1974-01-14 1974-06-28 Expired FR2257880B3 (de)

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 (de) 1975-08-08
FR2257880B3 FR2257880B3 (de) 1977-05-06

Family

ID=23720073

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7422738A Expired FR2257880B3 (de) 1974-01-14 1974-06-28

Country Status (10)

Country Link
US (1) US3885402A (de)
JP (1) JPS50102909A (de)
BR (1) BR7407762D0 (de)
CA (1) CA1001432A (de)
DE (1) DE2434873A1 (de)
FR (1) FR2257880B3 (de)
GB (1) GB1464996A (de)
IT (1) IT1014495B (de)
SE (1) SE404952B (de)
ZA (1) ZA743672B (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
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 (fr) * 1987-07-21 1989-01-27 Zimmern Bernard Compresseur de refrigeration hermetique avec economiseur
US4974427A (en) * 1989-10-17 1990-12-04 Copeland Corporation Compressor system with demand cooling
JPWO2007000815A1 (ja) * 2005-06-29 2009-01-22 株式会社前川製作所 二段スクリュー圧縮機の給油方法、装置及び冷凍装置の運転方法
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 (de) 2012-07-04 2014-01-09 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Substrateinrichtung, Konservierungsgerät und Verfahren zur Kryokonservierung einer biologischen Probe
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
JPS50102909A (de) 1975-08-14
IT1014495B (it) 1977-04-20
DE2434873A1 (de) 1975-07-17
SE7407434L (de) 1975-07-15
BR7407762D0 (pt) 1975-09-16
FR2257880B3 (de) 1977-05-06
US3885402A (en) 1975-05-27
SE404952B (sv) 1978-11-06
ZA743672B (en) 1975-06-25
GB1464996A (en) 1977-02-16
CA1001432A (en) 1976-12-14
AU6996074A (en) 1975-12-11

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