Compressor bleed valve

Details Compressor bleed valve Compressor bleed valve

F - Mech Eng,Light,Heat,Weapons

02

C

F02C 9/18 (2006.01) F01D 17/10 (2006.01) F04D 27/02 (2006.01)

Patent

CA 2229352

A bleed valve is in fluid communication with the compressor fluid flow path and the bypass fluid flow path whereby a piston extends radially of the valve and includes a piston head radially remote from the compressor fluid flow path. A pneumatic chamber surrounds a portion of the piston head, and air from a source downstream of the impeller is introduced into the chamber. The piston including a valuing member and a rigid sleeve connecting the piston head to the valuing means opens or closes the communication between the compressor flow path and the bypass flow path. A precompressed spring is associated with the piston to normally urge the piston radially outwardly relative to the compressor fluid flow path to a valve open position, and when the pneumatic pressure in the chamber surrounding the piston head overcomes the precompressed spring, the valve is closed.

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