Fluid handling – Systems – Multi-way valve unit
Patent
1991-06-06
1993-02-23
Hepperle, Stephen M.
Fluid handling
Systems
Multi-way valve unit
137876, 251175, 251185, F16K 1106
Patent
active
051881497
ABSTRACT:
A diverter valve has an IN port and first and second OUT ports which are positioned along an arcuate path. A rotor has an external control knob and a stem extending within the cavity of the valve body. Mounted on the stem, at right angles thereto, is a closure pin which extends into the bore of the hub of a mushroom-shaped closure element. The surface of the domed head of the closure element is in contact with an O-ring seal at one of the OUT ports. When the rotor is moved, the O-ring, in contact with the surface of the domed head, cams the closure element inwardly causing the element to slide on the closure pin and causing the closure pin to enter more deeply into a recess in the head of the closure element. When the closure element is in place to close-off one of the OUT ports, the other OUT port is opened and the pressure of the water flowing through the valve exerts a direct pressure on the flat annular undersurface of the head of the closure element. The lines of force of such pressure are perpendicular to the closure elements undersurface thereby maintaining the closure element in tight contact with the O-ring seal. Although not essential to the operation of the diverter valve, a light compression spring may be placed surrounding the hub of the closure element.
REFERENCES:
patent: 1033327 (1913-02-01), Stebbins
patent: 3889923 (1975-06-01), Saville et al.
patent: 4073471 (1978-02-01), Lehtinen
patent: 4436116 (1984-03-01), Billeter
A. Earley John F.
A. Earley III John F.
Hepperle Stephen M.
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