Electrically controlled pressure transducer valve

Details Electrically controlled pressure transducer valve Electrically controlled pressure transducer valve

1983-09-09

1985-06-25

Scott, Samuel

Valves and valve actuation

With correlated flow path

With mounting or support

251141, 137881, 137DIG8, F16K 3102, F16K 1704

Patent

active

045249482

ABSTRACT:
An electrically controlled pressure transducer valve comprises a controlled output pressure passage, an input passage communicating with a source of pressure and with the output passage, a vent passage communicable with the output passage, and a valve for controllably varying the degree of communication through the vent passage to govern the output pressure level. The valve comprises a valve member defining opposed sides forming first and second effective pressure areas respectively exposed to output and vent pressures, the valve member being movable in response to changes in differential pressure applied to the effective pressure areas. An electromagnetic actuator exerts magnetic force on the valve member and includes a coil connected to an electrical power source for producing an electromagnetic field, a core extending within the coil and a pole piece. The actuator is constructed and arranged to establish a concentrated magnetic flux path extending between the pole piece and the valve member through one valve member side.

REFERENCES:
patent: 1911618 (1933-05-01), Hapgood
patent: 4120214 (1978-10-01), Todd

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