Control valve

Details Control valve Control valve

1976-03-29

1978-05-09

Wayner, William E.

Refrigeration

Automatic control

Of external fluid or means

62354, 137517, 251 613, 251321, F25C 502

Patent

active

040879860

ABSTRACT:
A valve for regulating flow of fluid in a refrigerating system. The valve includes a valve chamber with an inlet, an outlet and a sensing bore communicating therewith and there is a valve element in the chamber for controlling flow of fluid from the inlet passage past a valve seat to the outlet passage. The valve element is urged by a spring pressed plunger toward an open position and is pressed by a thermostatically actuated piston extending through the sensing bore toward a closed position in opposition to the spring pressure. The sensing bore has a smaller diameter than the valve seat and the valve element is so supported between the piston and the spring pressed plunger whereby there is an effective area on the valve element determined by the difference in areas between the valve seat and sensing bore and which effective area responds to increasing and decreasing fluid pressure within the inlet port to correspondingly decrease and increase the valve opening and thereby maintain substantially constant flow through the valve despite such increasing and decreasing pressures.

REFERENCES:
patent: 1178528 (1916-04-01), Loepsinger
patent: 2034053 (1936-03-01), Morgan
patent: 2201728 (1940-05-01), Hoesel
patent: 2309405 (1943-01-01), Matteson
patent: 2327542 (1943-08-01), Matteson

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