Fluid handling – Systems – Multi-way valve unit
Patent
1992-06-29
1994-07-19
Michalsky, Gerald A.
Fluid handling
Systems
Multi-way valve unit
137274, 137276, 251192, 251160, F16K 1102
Patent
active
053299680
ABSTRACT:
A shuttle valve is described which comprises a valve housing having an inlet and a plurality of outlets. An inner valve assembly is located within an internal cavity which is actuated by a shaft which extends from the internal cavity to a point external from the valve housing. The inner valve assembly comprises a valve disk having a surface which is spherical, at least in part, and a flow elbow, which is located 180.degree. away from the face of the valve disk. The valve disk and the flow elbow are connected to one another and to the shaft. The valve disk is further articulatable. The point which defines the axis of rotation of the shaft and the center point of a phantom sphere defined by the spherical surface of the valve disk, are eccentric, or displaced from one another. Upon the rotation of the valve disk and its contact with a seating surface adjacent the flow passage to be shut off or closed, the eccentricity of the shaft axis and the center point of the phantom sphere creates a torque, upon the continued rotation of the shaft, which is applied to the valve disk and which serves to increase the seating load of the valve disk so as to perfect the seating of the valve disk against the spherical seating surfaces adjacent the flow passage.
REFERENCES:
patent: 3575376 (1971-04-01), Arvidson
patent: 4074889 (1978-02-01), Engel
patent: 4403626 (1983-09-01), Paul
patent: 4821772 (1989-04-01), Anderson
KWW Gesellschaft fur Verfahrenstechnik mbH
Michalsky Gerald A.
Sember Thomas M.
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