Refrigeration – Reversible – i.e. – heat pump – With flow control or compressor details
Reexamination Certificate
2005-04-26
2005-04-26
Esquivel, Denise L. (Department: 3744)
Refrigeration
Reversible, i.e., heat pump
With flow control or compressor details
C062S511000, C062S528000
Reexamination Certificate
active
06883345
ABSTRACT:
Multi-type air conditioner including an outdoor unit installed outside of a room having a compressor and an outdoor unit mounted therein, a plurality of indoor units each installed in a room having an electronic expansion valve and an indoor heat exchanger, a distributor for separating refrigerant from the outdoor unit at a gas-liquid separator and guiding separated refrigerant to the plurality of indoor units selectively depending on operation conditions, a first connection pipe for guiding the refrigerant from the outdoor unit to the gas-liquid separator in the distributor, a second connection pipe for guiding the refrigerant from the distributor to the outdoor unit, and a switching part in the outdoor unit having a first four way valve provided to a discharge side of the compressor for selective switching of a flow direction of the refrigerant flowing in the outdoor heat exchanger, and a second four way valve provided to be switched in conformity with switching of the first four way valve for maintaining the first connection pipe as a high pressure section high pressure refrigerant flows therein, and the second connection pipe as a low pressure section low pressure refrigerant flows therein, thereby permitting optimal dealing with individual room conditions.
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English Language Abstract of JP 7-4779.
English Language Abstract of JP 5-172430.
English Language Abstract of JP 2000-346488.
English Language Abstract of JP 3-51672.
English Language Abstract of JP 6-137710.
Esquivel Denise L.
Greenblum & Bernstein P.L.C.
LG Electronics Inc.
Zec Filip
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