表面粗さを考慮した圧縮機用ピストンリングの潤滑特性 : 第2報,潤滑油の供給不足と突起の接触を考慮した場合

概要

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Reciprocating compressors are widly used for refrigeration systems, and an understanding of piston-ring lubrication in the compressor is vital for designers in reducing the energy loss due to friction because a substantial portion of friction in the compressor is attributable to the piston-ring assembly. In this study, the modified Reynolds equation of Patir & Cheng is applied in order to consider the surface roughness effects, and Greenwood & Tripp's model is also applied in order to cosider the contact of piston-ring face with cylinder wall. In the anlalysis, two types of inlet boundary conditions, fully flooded condition and starvation condition, are applied at the leading edge and the Reynolds boundary condition is applied at the trailing edge, respectively. It is clarified from the numerical results that surface roughness and quantity of oil supply significantly affect the friction force of the piston-ring in refrigeration compressors.
一般社団法人日本機械学会の論文
1996-07-25