Shockless system and hot gas valve for refrigeration and air con

Details Shockless system and hot gas valve for refrigeration and air con Shockless system and hot gas valve for refrigeration and air con

1990-03-02

1991-12-10

Tanner, Harry B.

Refrigeration

Time or program actuator

Defrosting

621964, 62278, 137629, F25D 2106

Patent

active

050707078

ABSTRACT:
A refrigeration system utilizing hot gas for defrost and a hot gas defrost valve with specific opening characteristics for rapidly reducing the pressure gradient across the valve without producing hydraulic shock. When defrost is called for by the system, the hot gas defrost valve is opened in a manner which prevents a liquid or liquid-gas slug from impacting on cold system components and producing liquid hammer effect damage.

REFERENCES:
patent: 534360 (1895-02-01), Collins et al.
patent: 1190681 (1916-07-01), Spitzer
patent: 4615354 (1986-10-01), Bianchi
patent: 4651535 (1987-03-01), Alsenz

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