カーエアコン用スクロール圧縮機の軸受荷重

概要

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In order to achieve compact size, light weight and cost reduction of machines, critical design considering the well-known load acting on the parts is very important. The simulation of cylinder pressure and crankshaft kinematics of a refrigerating scroll compressor is usually performed, but the accuracy of kinematic analysis of refrigerating compressors is not verified because the compressor is small and the parts are under refrigerant pressure. We have analyticaly and experimentaly studied the bearing load behavior of a scroll compressor for an automotive air conditioner. This paper presents the following results. (1) The statically indeterminate kinematics model of the crankshaft system has been developed to improve the simulation accuracy. (2) Each load acting on ball bearings under compressor operating has been measured. (3) The simulated and measured values of bearing loads agree, and bearing load behavior of the scroll compressor is clarified.
1994-06-25