Flow control valve

Valves and valve actuation – Mechanical movement actuator – Cam

Reexamination Certificate

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Details

C251S251000

Reexamination Certificate

active

11224729

ABSTRACT:
A flow control valve for controlling water flow, for example through a refrigeration unit condenser spray cooling system. The valve includes an arm that carries a paddle adapted to be placed in an air stream for deflection by an air current. Movement of the paddle causes a cam pin within the valve to rotate, thereby radially deflecting a valve pin within the flow passageway to pivot relative to a valve seat at an orifice. The valve pin deflection results in an opening between the valve pin and the orifice to allow flow through the valve. Paddle deflection is thermally controlled by a bimetallic spiral spring32, which can be adjusted to regulate the temperature at which the paddle is allowed to deflect relative to the body of the valve.

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patent: 6994318 (2006-02-01), Burke

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