Theoretical Analysis of Diameter Ratio of Engagement Pair For Single Screw Compressor

In the present paper, the critical geometric parameters of the single screw compressor related to the diameter ratio of engagement pair λd are analyzed. The correlation equation of the diameter ratio λd and the center-line spacing coefficient λ is presented. The effects of λd on the economy and operation performances of the single screw compressor are investigated. Base on the results obtained by the numerical simulation, the suitable range of λd is suggested to improve the performance of single screw compressor in the actual application.