Dean Charles F. (Ridgecrest CA) Lauer Edward W. (Ridgecrest CA) Riggs David L. (Ridgecrest CA)
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The United States of America as represented by the Secretary of the Navy (Washington DC 06)
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2
초록▼
A pyrotechnically actuated dual air valve is hermetically sealed on both inlet and both outlet ports of static and dynamic air ducts until the dual air valve is actuated by a squib charge. A single piston, when activated by the squib charge, concomitantly opens all four hermetic seals to allow separ
A pyrotechnically actuated dual air valve is hermetically sealed on both inlet and both outlet ports of static and dynamic air ducts until the dual air valve is actuated by a squib charge. A single piston, when activated by the squib charge, concomitantly opens all four hermetic seals to allow separate static and dynamic air flows through the dual air valve.
대표청구항▼
A dual air valve, comprising: a housing defining a longitudinal central bore, open at one end and closed on one end, and having a threaded section adjacent said open end, a first diameter bore section extending from said threaded section toward said closed end and a second diameter bore, smaller tha
A dual air valve, comprising: a housing defining a longitudinal central bore, open at one end and closed on one end, and having a threaded section adjacent said open end, a first diameter bore section extending from said threaded section toward said closed end and a second diameter bore, smaller than said first diameter bore, extending from said first diameter bore section to said closed end, and a truncated conical socket terminating said longitudinal central bore, said housing further defining a first transverse bore completely penetrating said housing at said first diameter bore section, and a second transverse bore completely penetrating said housing at said second diameter bore section; a valve piston defining a base on one end, first, second, third, fourth, fifth, sixth, seventh and eighth flanges, each being spaced from one another, and a truncated conical tip on the other end compatible with said truncated conical socket in said housing, said first flange defining said base, said first and second flanges defining a slot therebetween, said fifth and eighth flanges defining first and second flange knives, respectively, said valve piston being slidably positioned within said housing for movement between a stored and an actuated position, said first and second flange knives being positioned to move past said first and second transverse bores when said valve piston moves from said stored position to said actuated position, said fourth and fifth flange pair and said seventh and eighth flange pair each defining a space between each flange in each pair for fluid flow when said valve piston is in said actuated position, said fourth and fifth flange pair being positioned to align the space between them with said first transverse bore in said actuated position and said seventh and eighth flange pair being positioned to align the space between them with said second transverse bore in said actuated position; an electrically initiated high pressure gas generating squib threadedly attached to said threaded section of said housing adjacent said valve piston base, closing said housing open end, and being responsive to an electric signal for pressurizing said base of said valve piston; a shear pin installed in said housing and partially positioned in said slot between said first and second flanges for releasably retaining said valve piston in said store position; a plurality of sealing rings positioned about said valve piston between each of said second and third flanges, said third and fourth flanges, and said sixth and seventh flanges, respectively, forming a respective plurality of seals between said valve piston and said housing; four port bodies each having a central passageway open near one end and extending to a closed, shearably openable tip at the other end, said bodies having a circumferential groove disposed near said shearably openable tip, each of said port bodies being inserted into said housing one in each end of said first and second transverse bores and each of said shearably openable tips extending into said longitudinal central bore for shearing interaction with said flange knives upon motion of said valve piston from said stored position to said actuated position; a sealing ring disposed around each of said port bodies at said groove for sealing between each of said port bodies and said housing; and means for removably retaining said port bodies within said transverse bores; whereby said shear pin retains said valve piston in said stored position until an electric signal causes said squib to ignite and pressurize said valve piston base with high pressure gas, causing said first flange to shear said shear pin, and forcing said valve piston to move toward said closed end of said housing and said first flange knife to shear open said tips of said port bodies in said first transverse bore, and said second flange knife to shear open said tips of said port bodies in said second transverse bore, aligning said first and second spaces for fluid flow with said first and second transverse bores respectively, said valve piston truncated conical tip frictionally lodging in said housing truncated conical socket for secure retention of said valve piston in said actuated position, resulting in open flow passages through said first and second transverse bores and inserted port bodies.
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이 특허에 인용된 특허 (2)
Hardesty Thomas K. C. (Ednor MD), Gas-actuated valves.
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