Fluid handling – Systems – With flow control means for branched passages
Patent
1977-02-02
1979-04-17
Schwadron, Martin P.
Fluid handling
Systems
With flow control means for branched passages
60484, 60494, 91459, 91508, 13759612, 13759616, 251 26, 251 30, 251 44, F15b 1306, F16k 3102, F16k 31122
Patent
active
041495659
ABSTRACT:
A valve assembly is provided in which a first poppet member and at least one subsequent poppet member each having a valve face engageable with a valve seat between first and second passages. A first and a subsequent pilot valve is operative for selectively establishing communication between a fluid reservoir and a space at one side of a piston portion of each poppet member and a pair of restricted flow passages are provided in each poppet member between such space and the first and second passages, such restricted flow passages being preferably formed in the poppet members with ball check valves provided therein. Such restricted flow passages operate upon closure of the pilot valve to develop a static pressure in the space corresponding to the pressure in the one of the first and second passage which has the higher pressure therein so as to move the poppet member to and hold it in its closed position in response to pressures applied from either of the first and second passages. Preferably, a plurality of valve units are provided in a common valve body, each including a poppet member and a pilot valve.
REFERENCES:
patent: 869755 (1907-10-01), Tretch
patent: 2480712 (1949-08-01), Carbon
patent: 3075737 (1963-01-01), Cantalupo et al.
patent: 3422728 (1969-01-01), Black et al.
patent: 3533434 (1970-10-01), Smith
patent: 3825026 (1974-07-01), Salerno et al.
patent: 3842714 (1974-10-01), Coleman
patent: 3862738 (1975-01-01), Stumpmeier
patent: 3864913 (1975-02-01), Herrmann
patent: 3976097 (1976-08-01), Brakel
Barrett Robert D.
Jennings Marvin D.
AuBuchon F. David
International Harvester Company
Kamp Ronald C.
Rudy Douglas W.
Schwadron Martin P.
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