Refrigeration equipment

Details Refrigeration equipment Refrigeration equipment

1983-09-07

1985-09-24

Wayner, William E.

Heat exchange

Movable heating or cooling surface

Rotary drum

621964, 236 92B, F25B 2900

Patent

active

045427836

ABSTRACT:
A refrigeration equipment having a compressor, a condenser, an evaporator and a thermostatic expansion valve with an equalizer line and capable of controlling its refrigeration capacity, wherein incorporated are a hot gas by-pass passage and a hot gas valve installed thereon to introduce the hot gas into said evaporator by by-passing said condensor and thermostatic expansion valve, a control passage to introduce, during the hot gas by-pass operation, a portion of hot gas to said equalizer line and throttle the opening of said expansion valve and a communication shut-off valve to shut off, at the close of said hot gas valve, the communication between said control passage and equalizer line, whereby controlling the opening of said expansion valve in accordance with hot gas by-passed during the capacity control by use of hot gas, so that the control range of said refrigeration capacity can be extended.

REFERENCES:
patent: 3734810 (1973-05-01), Davis
patent: 3791160 (1974-02-01), Savitz et al.
patent: 3933004 (1976-01-01), Carter et al.
patent: 4095742 (1978-06-01), Schumacher
patent: 4240266 (1980-12-01), Scrine et al.

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