Variable-capacity air conditioner

Details Variable-capacity air conditioner Variable-capacity air conditioner

2007-01-04

2010-11-30

Jules, Frantz F (Department: 3744)

Refrigeration

Automatic control

Refrigeration producer

C062S228100

Reexamination Certificate

active

07841196

ABSTRACT:
A variable-capacity air conditioner includes a compressor for compressing refrigerant, an indoor heat-exchanger coupled to the compressor, an outdoor heat-exchanger coupled to the compressor, a piping for coupling the compressor, the indoor heat-exchanger, and the outdoor heat-exchanger, a first capillary tube provided in the piping, a second capillary tube provided in the piping in series with the first capillary tube, a by-pass pipe connected in parallel to the second capillary tube, a valve for opening and closing the by-pass pipe, and a controller for controlling the compressor and the valve. The compressor is operable at a first capacity and a second capacity less than the first capacity to compress the refrigerant. The air conditioner prevents the compressor from overload and allows the refrigerant to circulating at an optimal flow amount rate through a refrigeration cycle.

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