Air conditioning system with electric compressor

摘要

An air conditioning system (10) using a refrigerant to control a temperature of a climate-controlled area (12). The air conditioning system (10) comprises a refrigerant circuit (13) and a compressor (14) coupled to the refrigerant circuit (13). The compressor (14) includes a compression mechanism (26) comprising a swash plate (36) and at least one piston (38) engaging the swash plate (36) for compressing the refrigerant. An electric motor (32) has a drive shaft (34) that supports the swash plate (36) at an inclination angle (A). The swash plate (36) is adjustable between a plurality of inclination angles (A) or stroke positions to adjust a current pressure in a low-side pressure portion (76) of the refrigerant circuit (13). An electronic control valve (70) adjusts the compression mechanism (26) between the plurality of stroke positions to adjust the current pressure. A controller (72) is programmed to control the electronic control valve (70) until the current pressure is within a predetermined limit of a target pressure. A pressure sensor (74) is coupled to the refrigerant circuit (13) to measure the current pressure in the refrigerant circuit (13). <IMAGE>