A Scroll Compressor for Air Conditioners

N. UCHIKAWA Shimizu Works, Hitachi, Ltd. Shimizu, Shizuvka, JAPAN A series of scroll compressors for air conditioners with revolutionary high efficiency have been developed and put into commertial production. This development was accomplished through the development of a controlled thrust force mechanism to support the orbiting scroll in the axial direction with the lowest frictonal force and wear yet achieved, and through a precise production technique for mass production. The scroll compressors have been mounted on a heat pump-type air conditioner and marketed since 1983. This paper descirbes the series of scroll compressors which have a number of useful features in application.