Fluidic valve mechanism

Fluid handling – Self-proportioning or correlating systems – Self-controlled branched flow systems

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Details

60585, B60T 1122

Patent

active

053480406

ABSTRACT:
A fluid flow sensitive valve mechanism, including a valve member and a valve positioning device, positioned in a valve chamber between first and second inlet-outlet ports controls opening and closing of a third inlet-outlet port in response to flow of fluid to and from the valve chamber through two or more of the ports. The valve member has a planar platform section and a valve body section extending from one side of the planar platform section. The first inlet-outlet port connects with the valve chamber through a surface engageable by one end of a valve member planar platform section. Fluid flow impingement acts on various valve mechanism surfaces so that when fluid flows from the first port into the valve chamber the valve mechanism is moved to close the third port. It keeps the third port closed so long as there is thereafter no fluid flowing from the second or third port into the valve chamber. When fluid flows through the first port from the valve chamber the valve mechanism is moved to open the third port. The valve positioning device has fluid flow impingement surfaces moving it and the valve member, closing the third port, and moving them to open the third port while acting to lock the valve member against closing that port while fluid is still flowing into the valve chamber from the second port.

REFERENCES:
patent: 3913327 (1975-10-01), Shellhause
patent: 5003780 (1991-04-01), Shellhause

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