Gd Midea Heating & Ventilating Equipment Co., Ltd.

Guangpeng Zhang

Yongfeng Xu

Hongwei Li

Yunpeng Jiang

Boqi Liang

Qihui Bu

Shilong Dong

Xiaohong Wu

An enhanced vapor injection air conditioning system is provided and includes: a vapor injection compressor, a direction switching assembly, a first outdoor heat exchanger, a second outdoor heat exchanger including first and second heat-exchange flow passages, and an auxiliary electronic expansion valve assembly. A main electronic expansion valve assembly is connected between a first end of the first heat-exchange flow passage and a second end of the first outdoor heat exchanger. The auxiliary electronic expansion valve assembly has a first end connected with an inlet of the second heat-exchange flow passage, and a second end connected to a second end of the first heat-exchange flow passage or between the main electronic expansion valve assembly and the first heat-exchange flow passage. A ratio DB of a sum of a caliber of the main electronic expansion valve assembly to that of the auxiliary electronic expansion valve assembly has a range of 1&#x2264;DB&#x2264;7.

Enhanced vapor injection air conditioning system

Growing community of inventors

Foshan, China

Guangpeng Zhang