Refrigeration – Automatic control – Diverse – cascade or compound refrigeration-producing system
Reexamination Certificate
2005-01-18
2005-01-18
Norman, Marc (Department: 3744)
Refrigeration
Automatic control
Diverse, cascade or compound refrigeration-producing system
C062S222000, C062S228300, C062S510000
Reexamination Certificate
active
06843067
ABSTRACT:
Disclosed are an air conditioner for cooling or heating air in a room by compressing, condensing, expanding and evaporating a refrigerant, and a method for controlling an electronic expansion valve of the air conditioner. The air conditioner includes a plurality of compressors, for compressing a refrigerant, of which one or more are operated so that refrigerant compression capacity is variably changed according to the variation of a cooling/heating load; and an electronic expansion valve adapted to control the refrigerant compression capacity. The electronic expansion valve controls the flow rate of the refrigerant after one or more of the compressors are stopped, thereby rapidly achieving the pressure equilibrium at inlet and outlet pipes of the stopped compressor(s), shortening a time taken to allow the stopped compressor(s) to be re-operated, and improving reliability in operating the compressors.
REFERENCES:
patent: 3252297 (1966-05-01), Leimbach
patent: 3699778 (1972-10-01), Orth
patent: 4549404 (1985-10-01), Lord
patent: 4932220 (1990-06-01), Inoue
patent: 4951475 (1990-08-01), Alsenz
patent: 6453690 (2002-09-01), Kim
patent: 6705097 (2004-03-01), So et al.
patent: 20030233838 (2003-12-01), Lee et al.
Hwang Yoon Jei
Kim Cheol Min
Lee Won Hee
LG Electronics Inc.
Norman Marc
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