Pulsed operation control valve

Details Pulsed operation control valve Pulsed operation control valve

1996-04-26

1997-10-14

Tapolcai, William E.

Refrigeration

Automatic control

Refrigeration producer

13762414, 236 92B, F25B 4104

Patent

active

056759827

ABSTRACT:
A valve assembly includes a refrigerant inlet port and a refrigerant outlet port having a restricted opening, with the inlet port opening at least 2 times larger than the restricted outlet port opening. The valve includes components for opening and closing the inlet port in response to valve cavity pressure between the inlet and outlet ports.
The larger inlet port relative to the restricted outlet port provides for rapid pressure buildup in the valve cavity when the inlet port is open which, in turn, causes rapid closing of the inlet port. The valve is capable of rapid cycling rates, highly effective for small refrigeration or cooling apparatus, as well as for controlling pressure in other applications requiring pressure regulation.

REFERENCES:
patent: Re23706 (1953-09-01), Lange
patent: 2100494 (1937-11-01), Sparks
patent: 2335824 (1943-11-01), Dillman
patent: 2579034 (1951-12-01), Dube et al.
patent: 2669849 (1954-02-01), Lange
patent: 3698416 (1972-10-01), Kwok
patent: 4534914 (1985-08-01), Takahashi et al.
patent: 4750334 (1988-06-01), Leimbach
patent: 4900189 (1990-02-01), Barosso et al.
patent: 5415008 (1995-05-01), Bessler
patent: 5463876 (1995-11-01), Bessler et al.

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