Bleed valve system

Details Bleed valve system Bleed valve system

2006-01-03

2006-01-03

Look, Edward K. (Department: 3745)

Rotary kinetic fluid motors or pumps

Working fluid bypass

C415S028000, C415S145000

Reexamination Certificate

active

06981842

ABSTRACT:
A bleed valve for use in a gas turbine engine is provided; the bleed valve may be used to relieve air pressure from a compressor stage of the engine. At normal pressure and when the engine is off, the bleed valve is in the open position. However once the engine starts, air pressure provided by the compressor closes the bleed valve. During engine operation, the bleed valve is opened to relieve air pressure by providing pressurized fluid, such as compressor air, to a valve chamber. The bleed valve is designed so that moveable parts of the valve, including contact seals and a sliding shaft, are protected by the valve structure from debris and contaminants carried in the engine's air stream.

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