Dynamic Behavior of a Scroll Compressor : Dynamic Analysis

Abstract

This study presents an analytical method to reveal the dynamic behavior of a scroll-type compressor of small capacity. The calculated results are summarized on the basis of the gast-orque fluctuation, the crankshaft rotary behavior, the constraint forces at each pair of machine elements, the unbalanced forces of inertia, the compressor vibrations, the mechanical losses and the mechanical efficiency. It is concluded from this study that the scroll compressors have revolutionarily well-balanced dynamic characteristics in their vibrations, but have poor mechanical efficiency compared with the commonly used one-rolling-piston-type rotary compressors.