Mitsubishi Heavy Industries Technical Review
    Vol. 54 No. 2 (2017)   Air-Conditioning & Refrigeration
    Technical Papers

    Development of High-efficiency Scroll Compressor for Automotive Air Conditioners

    TAKAYUKI KUWAHARA
    KAZUHIDE WATANABE
    MAKOTO TAKEUCHI
    HIROSHI YAMAZAKI
    GENTA YOSHIKAWA
    KEITA KITAGUCHI

    For the prevention of global warming, the reduction of CO2 emissions is demanded. Under such circumstances, there are moves afoot in the automobile industry to assess and regulate the fuel consumption of automobiles when the air conditioner is operating. Therefore, Mitsubishi Heavy Industries Automotive Thermal Systems Co., Ltd. has conducted a study about the possibility of further improvement in the currently mass-produced 3D scroll compressor(note), which has the advantage of power saving by performing analysis using shape measurement and various analysis technologies. As a result, we successfully developed a high-efficiency scroll compressor that has an 11% increased refrigerating capacity under conditions equivalent to the idling of the automobile, while keeping the weight and size equivalent to those of the conventional 3D scroll compressor. (Note) "3D scroll" is a registered trademark of Mitsubishi Heavy Industries, Ltd.