GB785955A - Improvements relating to axial-flow air compressors - Google Patents

Improvements relating to axial-flow air compressors

Info

Publication number
GB785955A
GB785955A GB33245/55A GB3324555A GB785955A GB 785955 A GB785955 A GB 785955A GB 33245/55 A GB33245/55 A GB 33245/55A GB 3324555 A GB3324555 A GB 3324555A GB 785955 A GB785955 A GB 785955A
Authority
GB
United Kingdom
Prior art keywords
strips
valve
axial
ports
casing sections
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
GB33245/55A
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.)
Motors Liquidation Co
Original Assignee
Motors Liquidation Co
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 Motors Liquidation Co filed Critical Motors Liquidation Co
Publication of GB785955A publication Critical patent/GB785955A/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
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/02—Surge control
    • F04D27/0207—Surge control by bleeding, bypassing or recycling fluids
    • F04D27/0215—Arrangements therefor, e.g. bleed or by-pass valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/02—Surge control
    • F04D27/0207—Surge control by bleeding, bypassing or recycling fluids
    • F04D27/023—Details or means for fluid extraction

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

785,955. Axial-flow compressors. GENERAL MOTORS CORPORATION. Nov. 21, 1955 [Dec. 3, 1954], No. 33245/55. Class 110 (1). An axial-flow air compressor comprises a circumferentially extending row of air-bleed apertures, and a slide valve member made of flexible metal strip slidable in the circumferential direction to open or close the apertures. In a multi-stage axial-flow compressor forming part of a gas turbine plant, air is bled from an intermediate stage during starting and low-speed operation through holes 38 in stator vane shroud strips 32 and thence through ports 46 in outer casing sections 22 to atmosphere. The bleed is controlled by a valve comprising flexible arcuate strips 48 formed with valve ports 50. The strips 32 and 48 and the casing sections 22 are of quadrantal form, and there are four of each to form a complete annular assembly. The shroud strips 32 are attached to the sections 22 by tongue-and-groove connections 40, 42, and the valve strips 48 are circumferentially slidable in the spaces between the casing sections 22 and the shroud strips 32 to open or close the ports 46. Each valve strip 48 is moved by a rack 52 which engages it by means of a pin 58 and is actuated by a worm 56, the four worms being interconnected for simultaneous operation by flexible cables 60.
GB33245/55A 1954-12-03 1955-11-21 Improvements relating to axial-flow air compressors Expired GB785955A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US785955XA 1954-12-03 1954-12-03

Publications (1)

Publication Number Publication Date
GB785955A true GB785955A (en) 1957-11-06

Family

ID=22145049

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33245/55A Expired GB785955A (en) 1954-12-03 1955-11-21 Improvements relating to axial-flow air compressors

Country Status (1)

Country Link
GB (1) GB785955A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1076878B (en) * 1959-02-28 1960-03-03 Entwicklungsbau Pirna Veb Device for discharging blow-off air from multi-stage axial compressors of gas turbines
DE1114979B (en) * 1958-05-15 1961-10-12 Rolls Royce Exhaust valve on the compressor of a gas turbine engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1114979B (en) * 1958-05-15 1961-10-12 Rolls Royce Exhaust valve on the compressor of a gas turbine engine
DE1076878B (en) * 1959-02-28 1960-03-03 Entwicklungsbau Pirna Veb Device for discharging blow-off air from multi-stage axial compressors of gas turbines

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