Fluid handling – Systems – Multi-way valve unit
Patent
1992-01-17
1992-12-22
Hepperle, Stephen M.
Fluid handling
Systems
Multi-way valve unit
F16K 11085, F16K 11087
Patent
active
051727250
ABSTRACT:
A device for switching the flow direction of a fluid includes a main body having an inlet to be connected with a fluid supply source and an exit to be connected with a fluid flow destination, each disposed on the primary side of the main body, and a first exit/inlet and a second exit/inlet to be connected with an apparatus using the fluid, each disposed on the secondary side of the main body. The device further includes a selector rotatably disposed in the main body around a rotational shaft. The selector has a plurality of flow channels or spaces each partitioned by a partition plate of a thickness smaller than the diameter of each of the ports of the main body so that the inlet and the exit can be selectively in communication with the first exit/inlet and the second exit/inlet respectively during rotation of the selector. Neither a large load is exerted on the pump nor a large pressure is applied on the fluid using apparatus upon switching the fluid flow direction so as to make the device firm and simplified in the structure.
REFERENCES:
patent: 3973592 (1976-08-01), Cleaver et al.
patent: 4543996 (1985-10-01), Baron
patent: 4738265 (1988-04-01), Ritchart et al.
patent: 4774977 (1988-10-01), Cohen
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