Fluid handling – Self-proportioning or correlating systems – Self-controlled branched flow systems
Patent
1989-01-19
1989-08-15
Cohan, Alan
Fluid handling
Self-proportioning or correlating systems
Self-controlled branched flow systems
137512, F16K 1110
Patent
active
048565490
ABSTRACT:
In a shuttle valve device, a device body is formed by a single block in order to simplify construction. The device body is formed with a communication passage extending straight. A plurality of fitting bores are intersected with the communication passage. Each fitting bore extends straight from an outer surface of the block toward the communication passage. The fitting bore is intersected with the communication passage and has a forward end portion extending beyond the communication passage. The forward end portion serves as a pressure introducing section. Shuttle valves are inserted respectively in the fitting bores so as to divide the communication passage into a plurality of sections. Each shuttle valve compares pressure introduced through the passage section on one side of the shuttle valve with pressure introduced through the forward end portion of the fitting bore, to select one of the pressures and to lead the selected pressure to the passage section on the other side of the shuttle valve.
REFERENCES:
patent: 2778316 (1957-01-01), Haight
patent: 3447556 (1989-06-01), Horweth
patent: 4249557 (1981-02-01), Habiger
patent: 4438778 (1984-03-01), Spencer
Cohan Alan
Diesel Kiki Co. Ltd.
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