Fluid handling – Line condition change responsive valves – Direct response valves
Patent
1995-10-17
1997-06-10
Kwon, John T.
Fluid handling
Line condition change responsive valves
Direct response valves
13754315, F16K 1500
Patent
active
056366590
ABSTRACT:
A variable area restrictor is disclosed that is preferably used in a turbine engine to provide improved matching between the pressure required for aerofoil cooling and the somewhat lower pressure requirement for supplying air to the interstage seals and disc cavities. In a preferred embodiment, the valve of the present invention comprises a spring loaded valve assembly with a fixed minimum flow area controlled by pre-setting a minimum dimension for the opening between an inlet and the housing or body of the valve. A pre-loaded spring maintains the lift at this minimum dimension until the pressure drop across the flow area exceeds a certain value. Above this critical pressure drop, the valve lifts, causing the flow area to increase, and thereby reducing the supply pressure that would be otherwise necessary to achieve a disc cavity flow adequate to maintain the temperatures within specifications.
REFERENCES:
patent: 2725076 (1955-11-01), Hansen
patent: 3849023 (1974-11-01), Klompas
patent: 4245954 (1981-01-01), Glenn
patent: 4576548 (1986-03-01), Smed et al.
patent: 4622994 (1986-11-01), Rosaen
patent: 4657479 (1987-04-01), Brown et al.
patent: 4792277 (1988-12-01), Dittberner, Jr. et al.
patent: 4860995 (1989-08-01), Rogers
patent: 4863343 (1989-09-01), Smed
patent: 4887432 (1989-12-01), Mumford et al.
patent: 5062452 (1991-11-01), Johnson
patent: 5118120 (1992-06-01), Drerup et al.
patent: 5149250 (1992-09-01), Plemmons et al.
patent: 5269651 (1993-12-01), Ostermeir et al.
patent: 5288020 (1994-02-01), Pirker
patent: 5425397 (1995-06-01), Mackal
Kwon John T.
Westinghouse Electric Corporation
LandOfFree
Variable area compensation valve does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Variable area compensation valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable area compensation valve will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-758736