GB1444373A - Screw rotor compressor having variable capacity - Google Patents

Screw rotor compressor having variable capacity

Info

Publication number
GB1444373A
GB1444373A GB4027773A GB4027773A GB1444373A GB 1444373 A GB1444373 A GB 1444373A GB 4027773 A GB4027773 A GB 4027773A GB 4027773 A GB4027773 A GB 4027773A GB 1444373 A GB1444373 A GB 1444373A
Authority
GB
United Kingdom
Prior art keywords
port
opening
aug
variable capacity
screw rotor
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
Application number
GB4027773A
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.)
Stal Refrigeration AB
Original Assignee
Stal Refrigeration AB
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 Stal Refrigeration AB filed Critical Stal Refrigeration AB
Publication of GB1444373A publication Critical patent/GB1444373A/en
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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary-Type Compressors (AREA)

Abstract

1444373 Rotary compressors STAL - REFRIGERATION AB 24 Aug 1973 [28 Aug 1972] 40277/73 Heading F1F A meshing-scew compressor comprises male and female rotors (4a, 4b) rotatably mounted in a housing 1, 2, 3 and an axially movable slide valve 5 which controls the size of a port 9 in the surface of the housing part 2, compressed gas which enters the port 9 from the working spaces 15 between the rotor lands being returned thereto through at least one opening 10 located upstream of the port 9. The opening 10 is positioned such that each working space 15 passes out of communication with the opening 10 at the latest at the same time the space is closed by an edge 7a from communication with the low-pressure port 7. Compressed gas is delivered through a high-pressure port 12.
GB4027773A 1972-08-28 1973-08-24 Screw rotor compressor having variable capacity Expired GB1444373A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE11092/72A SE366374B (en) 1972-08-28 1972-08-28

Publications (1)

Publication Number Publication Date
GB1444373A true GB1444373A (en) 1976-07-28

Family

ID=20293344

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4027773A Expired GB1444373A (en) 1972-08-28 1973-08-24 Screw rotor compressor having variable capacity

Country Status (5)

Country Link
US (1) US3877846A (en)
JP (1) JPS52251B2 (en)
GB (1) GB1444373A (en)
SE (1) SE366374B (en)
SU (1) SU873894A3 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1518271A (en) * 1974-07-01 1978-07-19 Svenska Rotor Maskiner Ab Method for the compression ratio of a screw compressor and prime mover
US4003199A (en) * 1976-03-01 1977-01-18 General Motors Corporation Turbine engine with air brake
JPS6117191U (en) * 1984-07-04 1986-01-31 株式会社神戸製鋼所 Screw compressor
JPS6293491A (en) * 1985-10-21 1987-04-28 Hitachi Ltd Screw compressor
JPH0191715U (en) * 1987-12-07 1989-06-15
SE461052B (en) * 1988-04-25 1989-12-18 Svenska Rotor Maskiner Ab LIFT VALVE BY A SCREW ROTATOR
TW533275B (en) * 1997-09-10 2003-05-21 Kobe Steel Ltd Screw compressor
GB0821275D0 (en) * 2008-11-20 2008-12-31 Aaf Mcquay Inc Screw compressor
US9057373B2 (en) 2011-11-22 2015-06-16 Vilter Manufacturing Llc Single screw compressor with high output
CN105386980B (en) * 2015-11-30 2018-04-06 珠海格力电器股份有限公司 A kind of helical-lobe compressor and air-conditioning system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3088658A (en) * 1959-06-04 1963-05-07 Svenska Rotor Maskiner Ab Angularly adjustable slides for screw rotor machines
US3088659A (en) * 1960-06-17 1963-05-07 Svenska Rotor Maskiner Ab Means for regulating helical rotary piston engines

Also Published As

Publication number Publication date
SE366374B (en) 1974-04-22
SU873894A3 (en) 1981-10-15
JPS52251B2 (en) 1977-01-06
JPS4959309A (en) 1974-06-08
US3877846A (en) 1975-04-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee