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GB1422821A - Meshing-screw compressors - Google Patents

Meshing-screw compressors

Info

Publication number
GB1422821A
GB1422821A GB2926573A GB2926573A GB1422821A GB 1422821 A GB1422821 A GB 1422821A GB 2926573 A GB2926573 A GB 2926573A GB 2926573 A GB2926573 A GB 2926573A GB 1422821 A GB1422821 A GB 1422821A
Authority
GB
United Kingdom
Prior art keywords
meshing
rotors
june
actuator
casing
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
GB2926573A
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.)
Howden Compressors Ltd
Original Assignee
Howden Compressors Ltd
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 Howden Compressors Ltd filed Critical Howden Compressors Ltd
Priority to GB2926573A priority Critical patent/GB1422821A/en
Publication of GB1422821A publication Critical patent/GB1422821A/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)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

1422821 Rotary positive-displacement fluid machines HOWDEN COMPRESSORS Ltd 17 June 1974 [20 June 1973] 29265/73 Heading F1F In a meshing-screw compressor for e.g. a refrigerant, the rotors 9 (only one shown) are lodged in an inner casing 5, outlet ducting includes a wall 13 extending across an inter-casing space 6, the effective lengths of the rotors are varied by an axially-movable valve-member 14 so as to regulate the output, and an actuator 15, which may be of the hydraulic piston and cylinder type, is coupled to the member 14 by a rod 16 passing through a seal 17 in a wall portion 2a of the outer casing 2 forming a part of said ducting. Means (not shown) for supplying hydraulic fluid to the actuator may be responsive to the compressor output.
GB2926573A 1973-06-20 1973-06-20 Meshing-screw compressors Expired GB1422821A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2926573A GB1422821A (en) 1973-06-20 1973-06-20 Meshing-screw compressors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2926573A GB1422821A (en) 1973-06-20 1973-06-20 Meshing-screw compressors

Publications (1)

Publication Number Publication Date
GB1422821A true GB1422821A (en) 1976-01-28

Family

ID=10288796

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2926573A Expired GB1422821A (en) 1973-06-20 1973-06-20 Meshing-screw compressors

Country Status (1)

Country Link
GB (1) GB1422821A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2031249A3 (en) * 2007-08-30 2014-03-12 Hitachi Appliances, Inc. Capacity control device for screw compressor
WO2015172069A1 (en) * 2014-05-09 2015-11-12 Accellent Inc. Air ejector for lathe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2031249A3 (en) * 2007-08-30 2014-03-12 Hitachi Appliances, Inc. Capacity control device for screw compressor
WO2015172069A1 (en) * 2014-05-09 2015-11-12 Accellent Inc. Air ejector for lathe

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee