Development of High-Efficiency Low-Vibration Rotary Compressor for HFC-410A Air-Conditioner

摘要

This paper presents the development of the high-efficiency and low-vibration rotary compressor forHFC-410A air-conditioners.As the pressure of HFC-410A is 1.6 times higher than that of HCFC-22, the rotary compressor inthe conventional design has the lower efficiency by the larger leakage from the compression chamber tothe suction chamber. The length and the diameter of the cylinder have been optimized to reduce theleakage and to have the high reliability at the sliding surfaces between the blade and the cylinder.The rotational vibration has been reduced by the improvement of the control method, whichgenerates the motor torque adjusted to the fluctuation of the gas compression torque.