Air conditioning system and control method thereof

Details Air conditioning system and control method thereof Air conditioning system and control method thereof

2008-05-27

2008-05-27

Norman, Marc (Department: 3744)

Refrigeration

Automatic control

Selective heating or cooling

C062S197000

Reexamination Certificate

active

11165240

ABSTRACT:
An air conditioning system includes an indoor heat exchanging unit, an outdoor heat exchanging unit, a compressor forming a closed loop together with the indoor and outdoor heat exchanging units to compress refrigerant, and a compressor driver to drive the compressor. The air conditioning system also includes an outdoor temperature sensor to sense outdoor temperature, a high pressure sensor to sense a pressure of the refrigerant discharged from the compressor, a low pressure sensor to sense the pressure of the refrigerant introduced into the compressor, a bypass pipe to connect a refrigerant pipe disposed between the indoor heat and outdoor heat exchanging units with a refrigerant pipe disposed in an influx part of the compressor, a bypass valve to open and close the bypass pipe, and a controller to open the bypass valve when the pressure sensed by the low pressure sensor is a predetermined target low pressure or is below the predetermined target low pressure, and to close the bypass valve when the pressure sensed by the high pressure sensor is over a predetermined target high pressure, under a condition in which the outdoor temperature sensed by the outdoor temperature sensor is a predetermined reference temperature or is below the predetermined reference temperature during a heating operation. Thus, the air conditioning system and a control method thereof, is improved in heating effect while performing a heating operation under a condition in which the outdoor temperature is low.

REFERENCES:
patent: 6327868 (2001-12-01), Furuya et al.
patent: 6467288 (2002-10-01), Kuroki et al.
patent: 2004/0000399 (2004-01-01), Gavula
patent: 2171079 (1994-07-01), None
patent: 0 448 345 (1991-09-01), None
patent: 1 288 593 (2003-03-01), None
patent: 1 371 914 (2003-12-01), None
patent: 4-006372 (1992-01-01), None
patent: 4-110573 (1992-04-01), None
patent: 5-52445 (1993-03-01), None
patent: 08-313076 (1996-11-01), None
patent: 1987-2601 (1987-03-01), None
patent: 1990-5130 (1990-04-01), None
patent: 2002-13084 (2002-02-01), None
patent: 2003-15400 (2003-02-01), None
patent: 2003-40826 (2003-05-01), None
The First Office Action issued on Oct. 13, 2006 by the State Intellectual Property Office of People's Republic of China in Application No. 200510083630.0 (7 pages) (8 pages of English translation).
Extended European Search Report Communication issued on Nov. 28, 2007 by the European Patent Office in the corresponding European Application No. 05107298.1-2301 (6 pages).

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