Refrigerating machine

Details Refrigerating machine Refrigerating machine

2006-02-08

2010-06-08

Nguyen, George (Department: 3744)

Refrigeration

Automatic control

Preventing, removing or handling atmospheric condensate

C062S086000, C062S234000

Reexamination Certificate

active

07730729

ABSTRACT:
A compressor, a radiator, an expander, and an evaporator are connected in series to define a refrigerating cycle. A bypass circuit that bypasses the expander, an on-off valve disposed in the bypass circuit, and a controller C1for controlling an opening of the on-off valve are provided in the refrigerating cycle. During defrosting, the controller C1controls the on-off valve so that a refrigerant may flow through the bypass circuit, thereby avoiding reduction in the amount of flow of the refrigerant during defrosting and preventing the defrosting operation from being prolonged.

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International Preliminary Examination Report issued in the International Application on Feb. 21, 2008.
Closed Refrigerating Machine by Mutsuyoshi Kawahira, 1981, ISBN4-88967-034-3 (pp. 278-280).
“Leading Study and Development of Basic Technology for Effective Utilization of Energy, Development of Two-Phase Flow Expander/Compressor for CO2 Air Conditioner” a 2002 Report by New Energy and Industrial Technology Development Organization.

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