Heat pump apparatus and operating method thereof

Details Heat pump apparatus and operating method thereof Heat pump apparatus and operating method thereof

2011-07-12

2011-07-12

Denion, Thomas E (Department: 3748)

Refrigeration

Reversible, i.e., heat pump

C062S324300, C062S498000, C034S477000, C034S476000, C034S210000, C034S212000, C034S219000

Reexamination Certificate

active

07975502

ABSTRACT:
In a heat pump apparatus of the invention, a refrigerant is circulated through a compressor31, a radiator32, a first throttle apparatus33, a heat exchanger34, a second throttle apparatus35and an evaporator36in this order. The heat exchanger34can be utilized as both a radiator and an evaporator by operating the first throttle apparatus33and the second throttle apparatus35. Therefore, even if the outside air temperature is high, discharge pressure and suction pressure of the compressor do not rise, the heat pump apparatus can be operated in a stable refrigeration cycle, and energy can be saved.

REFERENCES:
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Office Action dated Jan. 19, 2010 issued in corresponding Japanese Patent Application No. 2005-006315 with English translation.

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