Vapor-compression-type refrigerating machine

Details Vapor-compression-type refrigerating machine Vapor-compression-type refrigerating machine

2005-08-30

2005-08-30

Norman, Marc (Department: 3744)

Refrigeration

Automatic control

Refrigeration producer

C062S513000, C236S09200D

Reexamination Certificate

active

06935128

ABSTRACT:
The internal heat exchanger7is provided which exchanges heat between the refrigerant of low pressure and the refrigerant of high pressure, and the pre-load adjusting mechanism of the expansion valve5is abolished. Due to the above structure, the refrigerant flowing into the expansion valve5is cooled in the internal heat exchanger7, and enthalpy of the refrigerant flowing into the evaporator6is reduced. On the contrary, the refrigerant sucked into the compressor1is heated. Accordingly, a difference in enthalpy between the refrigerant at the inlet and the refrigerant at the outlet of the evaporator6can be made large, and the heat absorbing capacity of the evaporator6can be enhanced, and further it becomes possible to give the degree of superheat to the refrigerant sucked into the compressor1. Therefore, even if the pre-load adjusting mechanism is abolished, the vapor-compression-type refrigerating machine can be stably operated.

REFERENCES:
patent: 6334324 (2002-01-01), Muta et al.
patent: 2004/0112073 (2004-06-01), Ito et al.
patent: 2002-213842 (2002-07-01), None

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