Simulation of Radial Deformation for Orbiting Scroll Wrap in a Scroll Compressor

Abstract

Based on assumptions and tests of the discharge temperatures land pressures for a scroll compressor, a simulation of radial deformations of the orbiting scroll wrap is performed. All simulations show that the radial deformation of scroll wrap varies complicatedly in outer part. Although the deformations are controlled by the temperature of scroll wrap, the inner pressures of scroll wrap can make the radial deformation more uniform. So reducing temperature difference between the discharge and suction temperatures, using the material with lower thermal expansion coefficient are several effective means to improve the performance of scroll compressor in engineering practice.