THEORETIC MODEL OF BACK-PRESSURE CHAMBER FOR SCROLL COMPRESSOR

摘要

In view of the friction of the oil-gas mixture, the media flow characteristics through the back-pressure ports and the clearances in the back-pressure chamber are analysed in this paper, which based on the structure of scroll compressor with a self adjusting back-pressure mechanism. The theoretic model of the back-pressure chamber is developed, and the models describing the medium properties and leakage via the clearance are also set up.