Fluid handling – Line condition change responsive valves – With separate connected fluid reactor surface
Patent
1994-05-09
1995-10-10
Hepperle, Stephen M.
Fluid handling
Line condition change responsive valves
With separate connected fluid reactor surface
13750522, G05D 1602
Patent
active
054562821
ABSTRACT:
A pressure reducing regulator that controls its downstream or outlet pressure to a fixed fraction of its upstream or inlet pressure. The regulator includes a housing which may be of a titanium alloy, within which is located a seal or gasket at the outlet end which may be made of annealed copper, a rod, and piston, each of which may be made of high density graphite. The regulator is insensitive to temperature by virtue of being without a spring or gas sealed behind a diaphragm, and provides a reference for a system in which it is being used. The rod and piston of the regulator are constructed, for example, to have a 1/20 ratio such that when the downstream pressure is less than 1/20 of the upstream pressure the regulator opens and when the downstream pressure exceeds 1/20 of the upstream pressure the regulator closes.
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AIAA 92-3539, Demand Thrust Pumped Propulsion with Automatic Warm Gas Valving, J. C. Whitehead, 28th Joint Propulsion Conference and Exhibit, Jul. 6-8, 1992.
AIAA 93-2121, Bipropellant Propulsion with Reciprocating Pumps, J. C. Whithead, 29th Joint Propulsion Conference and Exhibit, Jun. 28-30, 1993.
Energy & Technology Review, published Jul. 1993, A New Rocket Propulsion System for Small Spacecraft, J. C. Whitehead, pp. 13-25.
Proceedings of Joint Army-Navy-NASA-Air Force Propulsion Meeting, Nov. 1993, J. C. Maybee et al., "Updated Test Results Of A Pumped Monopropellant Propulsion System".
Dilgard Lemoyne W.
Whitehead John C.
Carnahan L. E.
Hepperle Stephen M.
Sartorio Henry P.
The Regents of the University of California
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