Patent ID: 7540144
Filing Date: 2009-06-02
Classification: F02C,F02K,F04D,F05D

Abstract:
1. A compressor bleed valve arrangement for a gas turbine engine having a central axis, the compressor bleed valve arrangement comprising a bleed valve for selectively bleeding air from a main flow path to a bypass flow path, the main flow path being located inwardly of the bypass flow path relative to the central axis of the gas turbine engine, the bleed valve being accessible from an outward side of the bypass flow path relative to the central axis, the bleed valve having a static valve body extending across the bypass flowpath and housing a mobile valve assembly moveable therewithin between closed and open positions, the mobile valve assembly being isolated from the bypass flow path by the static valve body, and an actuator provided at the outward side of the bypass flow path, and wherein the mobile valve assembly comprises a piston head operatively connected to the actuator via a piston rod extending through the valve body.