Switching valve

Details Switching valve Switching valve

1996-08-27

1999-03-09

Michalsky, Gerald A.

Fluid handling

Systems

Multi-way valve unit

13762568, F15B 13044

Patent

active

058787828

ABSTRACT:
A switching valve has a cylindrical housing including a bore, an inlet port, a first inlet-outlet port, and a second inlet-outlet port which open to the hollow. A valve member slidably disposed in the bore has a ringed groove around its periphery. The valve member can open or block a portion between the groove and the first inlet-outlet port and a portion between the groove and the second inlet-outlet port. The groove formed outside the valve member always communicates with the inlet port and can communicate with the first and second inlet-outlet ports. A single drain port is formed within the valve member so that the single drain port can communicate with the first and second inlet-outlet ports. The valve member is caused to slide by a solenoid.

REFERENCES:
patent: 4664152 (1987-05-01), O'Mara
patent: 4809749 (1989-03-01), Ichihashi
patent: 5036885 (1991-08-01), Miura
patent: 5117869 (1992-06-01), Kolchinsky
patent: 5592972 (1997-01-01), Niethammer

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