Thermoelectric valve for channeling refrigerant gases into diffe

Details Thermoelectric valve for channeling refrigerant gases into diffe Thermoelectric valve for channeling refrigerant gases into diffe

1986-12-31

1987-12-08

Nilson, Robert G.

Fluid handling

Systems

Multi-way valve unit

251 11, 2513353, F16K 3168

Patent

active

047112700

ABSTRACT:
A valve for channeling refrigerant gases into different tubes of refrigeration devices comprising a casing enclosing a waxy, thermally expandable mass hermetically sealed by an elastically deformable diaphragm that activates the rod of a needle valve controlling two outlets of gases entering the valve. The heating of the casing is achieved by means of one or a pair of electrically-powered thermistor(s) (PTC). The valve is hermetically sealed against gas leakage; the electrical components of the valve are enclosed in a housing made of an insulated material, and can be removed and interchanged with respect to a bracket connected to the body of the valve with a tube. The valve rod lies longitudinally within the tube and is hermetically enclosed by a diaphragm or metallic bellows.

REFERENCES:
patent: 3860169 (1975-01-01), Norman
patent: 4114645 (1978-09-01), Pauliukonis

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