ZA743672B - Optimized point of injection of liquid refrigerant in a helical screw rotary compressor for refrigeration use - Google Patents

Optimized point of injection of liquid refrigerant in a helical screw rotary compressor for refrigeration use

Info

Publication number
ZA743672B
ZA743672B ZA00743672A ZA743672A ZA743672B ZA 743672 B ZA743672 B ZA 743672B ZA 00743672 A ZA00743672 A ZA 00743672A ZA 743672 A ZA743672 A ZA 743672A ZA 743672 B ZA743672 B ZA 743672B
Authority
ZA
South Africa
Prior art keywords
injection
liquid refrigerant
rotary compressor
helical screw
screw rotary
Prior art date
Application number
ZA00743672A
Other languages
English (en)
Inventor
H Moody
D Schaefer
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 ZA743672B publication Critical patent/ZA743672B/xx

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)
ZA00743672A 1974-01-14 1974-06-10 Optimized point of injection of liquid refrigerant in a helical screw rotary compressor for refrigeration use ZA743672B (en)

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 (1)

Publication Number Publication Date
ZA743672B true ZA743672B (en) 1975-06-25

Family

ID=23720073

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00743672A ZA743672B (en) 1974-01-14 1974-06-10 Optimized point of injection of liquid refrigerant in a helical screw rotary compressor for refrigeration use

Country Status (10)

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

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
WO2007000815A1 (ja) * 2005-06-29 2007-01-04 Mayekawa Mfg. Co., Ltd 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
CN101400889B (zh) * 2006-03-13 2012-10-03 开利公司 具有热气体旁路口的滑阀
US20070251256A1 (en) * 2006-03-20 2007-11-01 Pham Hung M Flash tank design and control for heat pumps
US8769982B2 (en) * 2006-10-02 2014-07-08 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
US7647790B2 (en) * 2006-10-02 2010-01-19 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
IT1014495B (it) 1977-04-20
BR7407762D0 (pt) 1975-09-16
US3885402A (en) 1975-05-27
GB1464996A (en) 1977-02-16
CA1001432A (en) 1976-12-14
SE7407434L (xx) 1975-07-15
DE2434873A1 (de) 1975-07-17
JPS50102909A (xx) 1975-08-14
SE404952B (sv) 1978-11-06
AU6996074A (en) 1975-12-11
FR2257880A1 (xx) 1975-08-08
FR2257880B3 (xx) 1977-05-06

Similar Documents

Publication Publication Date Title
ZA743672B (en) Optimized point of injection of liquid refrigerant in a helical screw rotary compressor for refrigeration use
ZA753524B (en) Undercompression and overcompression free helical screw rotary compressor
ZA753525B (en) Hermetic rotary helical screw compressor with improved oil management
ZA77332B (en) Heat pump with high efficiency reversible helical screw rotary compressor
CA995475A (en) Liquid refrigerant injection system for hermetic electric motor driven helical screw compressor
AR204037A1 (es) Dispositivo para variacion de la capacidad volumetrica de un compresor helicoidal
AU5979173A (en) Injection cooling of screw compressors
NZ179532A (en) Screw-type masonry anchor notches in main thread smaller parallel thread
JPS5375513A (en) Closed rotary refrigerant compressor
NZ185400A (en) Cooling of material using stored cryogenic refrigerant
NZ178612A (en) Screw head ribbed projections in slot
ZA75277B (en) A rotary compressor for gaseous and/or vaporous media
AU8696375A (en) A liquid-ring compressor unit
ZA754404B (en) Feedback control system for helical screw rotary compressor
CA1007877A (en) Cryogenic fragmentation freezer
AU504600B2 (en) Liquid injected screw compressor
ZA724566B (en) Capacity control valve for screw compressor
AU7983175A (en) Receiver-separator unit for liquid injected gas compressor
NZ183428A (en) Cryogenic refrigeration unit attachable to containers
ZA752412B (en) Refrigeration evaporator coil
ZA74741B (en) Improvements relating to refrigerators
ZA782782B (en) Multistage helical screw compressor with liquid injection
ZA756206B (en) Motor-compressor unit of the sealed type for refrigerating appliances
AU479659B2 (en) Optimized point of injection of liquid refrigerant in a helical screw rotary compressot for refrigeration use
IL38534A0 (en) A compressor unit for refrigeration installation