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A Study on the Design of Back Pressure for Automotive Scroll Compressor  

Koo, In-Hwe (Department of Automobile Engineering, Doowon Technical College)
Lee, Geon-Ho (Department of Automobile Engineering, Doowon Technical College)
Publication Information
International Journal of Air-Conditioning and Refrigeration / v.17, no.1, 2009 , pp. 1-6 More about this Journal
The optimum design of back pressure chamber is one of the most important factors in designing scroll compressors because it has a great influence on the efficiency and other design parameters. The design process can be divided into 2 parts. One is obtaining the optimum pressure of the chamber and keeping it in constant value. The other is finding out the minimum inflow rate of medium with which back pressure chamber is filled. In this study we are focused on the first step. At first we added a simple structure that can change back pressure without reassembling compressor. It makes possible to obtaining optimum back pressure. Then we designed an equipment that the back pressure control valve assembly could be independently tested with. Spring was redesigned to decrease stiffness variation. Also sealing mechanism of back pressure control valve was improved to more effective way. As a result, it was verified that in a real mode test back pressure variation could be retained in 2.3% with discharge pressure and operating frequency varied. In addition the integrated structure of back pressure control valve is expected to contribute to effective manufacturing process.
Scroll compressor; Back pressure; Control valve; Axial compliance; Automotive;
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  • Reference
1 Koo, I. H., Cho, Y. H., Choi S., Park J. M., 2001, Minimization of Tilting Moment of Co-Rotating Scroll Compressor by Design of Back Pressure Chamber, Proceedings of the 3rd International Compressor Technique Conference, pp. 208-217
2 Lifson, A., 2002, Novel Design Technique for Extending Operating Range of Axially Compliant Scrolls, Sixteenth International Compressor Engineering Conference at Purdue, C18-1
3 Fushiki, T., Sano, F., Ikeda, K., Nishiki, T., Sebata, T., Tani, M., Sekiya S., 2002, Development of scroll compressor with new compliant mechanism, Sixteenth International Compressor Engineering Conference at Purdue, C18-3