Fluid handling – Systems – Multi-way valve unit
Patent
1978-06-12
1980-02-12
Michalsky, Gerald A.
Fluid handling
Systems
Multi-way valve unit
13762566, 137DIG7, 251DIG1, F15B 13042
Patent
active
041878841
ABSTRACT:
A valve assembly including a housing having an elongated bore formed therein. Inlet, outlet, and load ports communicate with the bore. A valve is positioned within the bore for controlling flow of a pressure fluid between the ports. A seal ring is mounted on the valve and disposed in sealing engagement with the housing in the vicinity of the inlet port. The seal ring is axially shiftable across the inlet port in response to shifting movement of the valve. The seal ring is mounted in an annular groove which encircles the valve and has an axial width substantially greater than the axial width of the seal ring. The seal ring is shifted axially relative to the groove by the pressure fluid supplied through the inlet port when the valve is shifted between first and second operational positions. A fluid-assisted spring means coacts between the valve and the housing, which spring means includes a spring-confining chamber defined between one end of the valve and the adjacent portion of the housing. A passage extends interiorly of the valve for providing fluid communication between the chamber and the inlet port. The passage terminates in a hole which opens through the bottom of the groove. The seal ring is movable over the hole during shifting of the valve between the first and second operational positions.
REFERENCES:
patent: 3819152 (1974-06-01), Clippard
patent: 3949645 (1976-04-01), Maslet
patent: 4026325 (1977-05-01), Loveless
General Gas Light Company
Michalsky Gerald A.
LandOfFree
Four-way valve employing fluid spring does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Four-way valve employing fluid spring, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Four-way valve employing fluid spring will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1851203