Bleed valve assembly

Quintin George Rayer (Inventor), Michael F Edwards (Inventor)

Research output: Patent

15 Downloads (Pure)

Abstract

A bleed valve 60 for regulating a fluid flow through a bleed hole 88 defined by a casing 49 of a gas turbine engine 10 compressor 22, the bleed valve 60 comprises a central axis 92, a piston 62 and a static structure 70, the static structure 70 generally Surrounds the piston 62, and is arranged to define in axial sequence from the bleed hole 88 first, second and third chambers 82, 84, 86 respectively, the piston 62 comprises a spindle 66, a first end plate 90 slidably sealed against the static structure 70 and a valve face end plate 64 from which walls 68 axially extend, the walls 68 being slidably sealed to the static structure 70, the static structure 70 comprises a radially inwardly extending flange 74, the
flange 74 defining an aperture 76 through which the spindle 66 axially extends and is slidably Sealed against, the first chamber 82 is in fluid communication with the compressor 22 via pressure balancing apertures 108 defined in the valve face end plate 64, the third chamber 86 is also in fluid communication with the compressor 22 via a passageway 100 defined by the spindle 66, the bleed valve 60 further comprises means for moving the piston between an open position and a closed position, wherein the valve face end plate 64 comprises radially extending pressure balancing apertures 108.
Original languageEnglish
Patent numberUS20020189263A1
IPCFO2C 6/04
Priority date13/06/01
Filing date3/06/02
Publication statusPublished - 19 Dec 2002
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)

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