With the background of environmental conservation and the reduction of CO2 emissions, the
needs for smaller size and higher efficiency are also increasing for electrically-driven compressors
for vehicle air conditioning systems. For the development of a new electrically-driven compressor,
we optimized the scroll specifications, reconsidered the inverter control system and made
significant modifications to the internal structure of our conventional compressor. As a result,
Mitsubishi Heavy Industries Automotive Thermal Systems Co., Ltd. attained an improvement in
efficiency of approximately 10% and a considerable reduction in the size and weight, while also
maintaining the refrigerating capacity equivalent to our conventional compressor.
