Quick-opening valve operated by explosive charge

Details Quick-opening valve operated by explosive charge Quick-opening valve operated by explosive charge

1975-07-28

1977-01-18

Blunk, Evon C.

Fluid handling

Destructible or deformable element controlled

Destructible element

169 19, F16K 1306, A62C 3706

Patent

active

040033953

ABSTRACT:
A quick-opening valve is disclosed for use in opening flow through a passageway from a source of pressurized fluid, such as a fire extinguisher fluid. The valve comprises a valve body in which a flow-blocking member is mounted to form a portion of the passageway. In one embodiment an imperforate plug is mounted within tubing to form the flow-blocking member, and a pair of weakened zones are formed by circular grooves in the tubing at opposite axial ends of the plug. In another embodiment the plug is formed integral with hollow cylindrical walls to form the flow-blocking member. A deflagrating charge is mounted in the valve body for generating explosive gas pressure so that the weakened zones are sheared. A slug which includes the plug is ejected in a direction at right angles to the passageway and into a slug receiving chamber. The ejected slug is deflected by a ramp to absorb excess energy. A one-way spring detent prevents the slug from rebounding back into the passageway and obstructing fluid flow.

REFERENCES:
patent: 2877780 (1959-03-01), Whitley et al.
patent: 3202162 (1965-08-01), Eckardt et al.
patent: 3260272 (1966-07-01), Eckardt
patent: 3332432 (1967-07-01), Marsh
patent: 3333641 (1967-08-01), Hansom et al.
patent: 3494370 (1970-02-01), Wahl et al.
patent: 3757810 (1973-09-01), Covarrubias

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