Design of Involute-higher Curve Combined Profile for Scroll Compressor and Finite Element Analysis

In this paper,the method of using combined profile composed of involute-higher curve to reduce the number of scroll compressor ring and its features are introduced.The geometry theory and relative parameters calculation equation of this type profile are established.And the finite element analysis is carried out for the moving vortex plate.The calculation results show that this combined profile can reduce the number of scroll compressor ring and the length of profile.And the deformation and the stress of this combined profile compressor are obviously smaller than the single involute profile compressor.The investigation results can be used for reference in designing this combined profile and large air displacement of scroll compressor.