US 6,981,842 B2 | ||
Bleed valve system | ||
Gary D'Angelo, Bristol, Conn. (US); Tom Banach, Barkhamsted, Conn. (US); Robert Franconi, New Hartford, Conn. (US); James Gibb, Burlington, Conn. (US); and Bob Goodman, West Hartford, Conn. (US) | ||
Assigned to Honeywell International, Inc., Morristown, N.J. (US) | ||
Filed on Jul. 22, 2003, as Appl. No. 10/625,295. | ||
Prior Publication US 2005/0019156 A1, Jan. 27, 2005 | ||
Int. Cl. F01B 25/00 (2006.01) |
U.S. Cl. 415—144 | 34 Claims |
1. A bleed valve for use in a gas turbine engine comprising:
a housing with an inlet and an outlet said housing being hollow with an inner and outer surface; said housing further defining
an interior region and an exterior region;
a hollow shaft guide fixed to the interior surface of said housing, wherein said hollow shaft guide is capable of receiving
fluid pressure;
a shaft slidably mounted in said hollow shaft guide;
a poppet attached to said shaft, said poppet having a seat to contact the interior surface of said housing;
a stationary piston positioned in the interior region of said housing, said stationary piston in contact with said poppet
whereby said stationary piston and said poppet define a fluid chamber and wherein said fluid chamber is in fluid communication
with said hollow shaft guide;
sealing rings located between said poppet and said stationary piston;
a biasing means positioned in the interior of said chamber; and
a fluid inlet providing fluid communication between said chamber and the exterior region of said housing through said hollow
shaft guide.
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