Fuel filter bypass valve with condition preliminary indicator an

Details Fuel filter bypass valve with condition preliminary indicator an Fuel filter bypass valve with condition preliminary indicator an

1975-01-09

1976-07-20

Schwadron, Martin P.

Fluid handling

Line condition change responsive valves

With separate connected fluid reactor surface

137554, 116 70, 210 90, 210130, F16K 3700

Patent

active

039701042

ABSTRACT:
A fuel filter bypass valve assembly includes a valve body having inlet and opposite sides. A movable member is peripherally sealed to the opposite side, and moves toward and away therefrom to define a variable volume chamber. Port means extends past the valve body for establishing communication between such chamber and the valve body inlet side. Yieldable biasing means is connected with the movable member for normally biasing same toward the valve body opposite side and biasing the entire assembly in a direction for positioning the inlet side against a valve seat. Cooperating stop means between the movable member and valve body limits movement of such movable member away from the valve body opposite side. The movable member and valve body are proportioned so that the pressure required to move the movable member away from the valve body against the force of the biasing means is substantially less than the pressure required to move the valve body away from the valve seat against the force of the biasing means.

REFERENCES:
patent: 2943446 (1960-07-01), Goodall et al.
patent: 3150633 (1964-09-01), Holl
patent: 3420266 (1969-01-01), Downey
patent: 3441138 (1969-04-01), Rosaen et al.
patent: 3451551 (1969-01-01), Sample et al.
patent: 3487929 (1970-01-01), Sample et al.
patent: 3703191 (1972-11-01), Ekstrom

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