Electrically operated expansion valve for refrigeration control

Details Electrically operated expansion valve for refrigeration control Electrically operated expansion valve for refrigeration control

1975-02-12

1976-07-06

Wayner, William E.

Automatic temperature and humidity regulation

Motors

Relay

60529, 219511, 13754323, 236 92B, 236101B, G05D 2324

Patent

active

039677818

ABSTRACT:
An expansion valve for a refrigeration system is provided in which the flow through the expansion valve is controlled electrically. The preferred valve embodiment utilizes a straight line configuration in that a valve body is mounted within a suitable shell. The valve body has an axial opening through it, and one end of the valve body defines an expansion port. A valve pin is movably mounted between a first position closing the expansion port and a second position opening the expansion port. Electrically energizable means are mounted to the valve body. The electrically energizable means include thermostatic expansion means operatively connected to the valve pin. The thermostatic expansion means expand axially in response to temperature change, which movement actuates valve pin operation, between closed and opened positions.

REFERENCES:
patent: 2788639 (1957-04-01), Kraft
patent: 3121315 (1964-02-01), Matthies
patent: 3211414 (1965-10-01), Webb
patent: 3335997 (1967-08-01), Sherwood

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