Fluid handling – Systems – Supply and exhaust
Patent
1990-01-29
1991-03-12
Michalsky, Gerald A.
Fluid handling
Systems
Supply and exhaust
13762565, 25112914, 25112921, F15B 13044
Patent
active
049985590
ABSTRACT:
A solenoid actuated pressure control valve includes a solenoid coil having a central passage extending axially through the coil. An armature is movable axially within the coil passage to be magnetically attracted to the pole piece when the coil is energized. Fluid pressure at a supply port of the valve biases the armature to its opposite end limit of movement when the coil is deenergized. Various forms of valving arrangements are disclosed, in one of which valve heads are located on the opposite ends of the armature to engage either of opposed valve seats dependent on whether the coil is energized or not. In other arrangements, the armature engages a push rod to unseat one valve upon energization of the coil while closing a seond valve. The one valve is biased to its closed position by supply port pressure when the coil is deenergized, the push rod opening the other valve. The valves operate to connect a control port to a sump port when the coil is deenergized and to connect the control port to the supply port upon energization of the coil. One form of valve employs a diaphragm to hydraulically isolate the coil, pole piece and armature from the controlled fluid.
REFERENCES:
patent: 2267515 (1944-12-01), Wilcox et al.
patent: 2868494 (1959-01-01), Kearns et al.
patent: 3307585 (1967-03-01), Schilling et al.
patent: 3498330 (1970-03-01), Paige
patent: 3529620 (1970-09-01), Leiber
patent: 3651833 (1972-03-01), Piko
patent: 3828818 (1974-08-01), Hunt
patent: 4312380 (1982-01-01), Leiber et al.
patent: 4320781 (1982-03-01), Bouvet et al.
patent: 4338966 (1982-07-01), Smith
patent: 4391292 (1983-07-01), Millar
patent: 4556085 (1985-12-01), Warrick
patent: 4578662 (1986-03-01), Slavin et al.
patent: 4610267 (1986-09-01), Beck et al.
patent: 4718454 (1988-01-01), Appleby
Coltec Industries Inc.
Michalsky Gerald A.
Reiter Howard S.
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