Fluid handling – Systems – Multi-way valve unit
Patent
1992-03-17
1993-03-16
Rivell, John
Fluid handling
Systems
Multi-way valve unit
13762546, 137312, F16K 1102
Patent
active
051935813
ABSTRACT:
A selector valve used for distributing and combining process flow. This valve comprises an open-ended cylindrical casing, a valve seat secured to the casing, an inlet hole extending coaxially with the casing through the valve seat, a plurality of outlet holes extending through the valve seat and arranged in a circle concentrical with the casing, a valve body fitted in the casing and rotatable about its axis, a U-shaped passage formed in the valve body such that its one end opens at a position coinciding with the inlet hole and its other end opens at a position meeting the circle, a spring provided within the casing for urging the valve body toward the valve seat so that the valve body is maintained in pressure contact with the valve seat, a driving mechanism for rotating the valve body through a desired angle so that the inlet hole can be in fluid communication with selected one of the outlet holes through the U-shaped passage, an annular groove formed on the surface of the valve body to define an annular, close space between the valve seat and the valve body at a position inside of the circle and a discharge hole extending through the valve seat at such a position as to be in fluid communication with the space.
REFERENCES:
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Fujimori Akihiro
Kataoka Yoshiharu
Koga Hirotoshi
Onda Nobuhiro
Shiroto Yoshimi
Chiyoda Corporation
NKK Corporation
Rivell John
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