Fluid handling – Systems – Supply and exhaust
Patent
1998-02-09
2000-09-12
Michalsky, Gerald A.
Fluid handling
Systems
Supply and exhaust
13762565, 25112907, 25112916, 25112917, F15B 13044
Patent
active
061162760
ABSTRACT:
A latching, dynamically balanced, fluid control valve. The valve includes a housing which has a supply port, a cylinder port and a return port. Fluid communication between the supply port and the cylinder port is controlled by a first valve that opens and closes a first valve port of the housing. Fluid communication between the supply port and the cylinder port is controlled by a second valve that opens and closes a second valve port. The first and second valves are connected to a transfer tube that is coupled to a solenoid and a return spring. The solenoid and spring are sealed by a pair of seals that each have an effective area which is approximately equal to the effective area of the valves. Each seal is located opposite from a valve seat so that opposing fluid pressures are applied to the seal and the valve. The opposing pressures create a net force on the transfer tube that is approximately zero, thus providing a balanced fluid valve that requires less energy to actuate.
REFERENCES:
patent: Re34261 (1993-05-01), Sule
patent: 2372311 (1945-03-01), Brown
patent: 2969811 (1961-01-01), Freeman
patent: 3043336 (1962-07-01), Parent et al.
patent: 3357454 (1967-12-01), Koutnik
patent: 3985333 (1976-10-01), Paulsen
patent: 4409638 (1983-10-01), Sturman et al.
patent: 4624285 (1986-11-01), Perach
patent: 4641686 (1987-02-01), Thompson
patent: 5007458 (1991-04-01), Marcus et al.
patent: 5345857 (1994-09-01), Murphy
patent: 5718264 (1998-02-01), Sturman
Michalsky Gerald A.
Sturman BG, LLC
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