Reduced gain thrust control valve

Details Reduced gain thrust control valve Reduced gain thrust control valve

2007-03-06

2007-03-06

Fox, John (Department: 3753)

Fluid handling

Systems

Multi-way valve unit

C060S039281

Reexamination Certificate

active

10825254

ABSTRACT:
A reduced gain thrust control valve for use in a rocket engine has a housing with a fluid inlet and a piston and cylinder unit for controlling a fluid output of the control valve. The fluid inlet is formed by at least one metering element formed in the housing. The at least one metering element has a rectangular portion for producing improved control stability, a tee and slot portion for controlling thrust during a start transient engine phase, and a fixed turbine bypass portion for accommodating a retainer. The retainer incorporates at least one fluid channel so as to produce repeatable fixed bypass flow metering.

REFERENCES:
patent: 2936557 (1960-05-01), Amnens
patent: 3093157 (1963-06-01), Aitken et al.
patent: 3426801 (1969-02-01), Curran
patent: 3752183 (1973-08-01), Griswold
patent: 3780531 (1973-12-01), Blair
patent: 3803929 (1974-04-01), Karol
patent: 4000607 (1977-01-01), Bolliger
patent: 4326377 (1982-04-01), Jaqua
patent: 4834785 (1989-05-01), Ayres
patent: 6328056 (2001-12-01), Kumar et al.
patent: 6655151 (2003-12-01), Mahoney et al.
patent: 6751985 (2004-06-01), Kimble et al.

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