Refrigeration – Automatic control – Refrigeration producer
Reexamination Certificate
2006-05-09
2006-05-09
Norman, Marc (Department: 3744)
Refrigeration
Automatic control
Refrigeration producer
C062S230000, C062S510000, C417S325000
Reexamination Certificate
active
07040107
ABSTRACT:
An air conditioner has a variable capacity rotary compressor, which allows the compressor to be smoothly re-started, thus increasing start reliability of the compressor. The air conditioner includes a compressor rotated in opposite directions. A drive unit rotates the compressor in a forward or reverse direction. A start determining unit determines whether the compressor has started to rotate in a forward direction or not. A control unit operates the drive unit so as to rotate the compressor in a direction opposite to the forward direction, and then re-start the compressor in the forward direction, when the compressor has failed to start. The air conditioner and a method of controlling the air conditioner allow the compressor to be smoothly and rapidly re-started even when the compressor has failed to re-start, thus increasing start reliability, and shortening a time required to re-start the compressor.
REFERENCES:
patent: 2976807 (1961-03-01), Hill
patent: 4248053 (1981-02-01), Sisk
patent: 4912936 (1990-04-01), Denpou
patent: 5142877 (1992-09-01), Shimizu
patent: 6648604 (2003-11-01), Lifson
patent: 08210277 (1996-08-01), None
Cho Sung Hea
Kim Cheol Woo
Lee In Ju
Norman Marc
Staas & Halsey , LLP
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