Friction Power and Appropriate Lubrication System in Rotary (Wankel) Engines

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Gerami Kaviri Nejad, Alireza | 2009

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 39478 (08)
University: Sharif University of Technology
Department: Mechanical Engineering
Advisor(s): Mozafari, Ali Asghar
Abstract:
In this study an internal combustion rotary (Wankel) engine and its specifications is analyzed and the proper lubrication system is described. The acceleration acting on apex seals, and engine speed fluctuations together with the leading and trailing cells gas pressure forces are analyzed in the present work using the second Newton law. The research shows that cell gas pressure effects are important and inclusion of these effects will provide results which are more compatible with the reality and lead to a much more accurate analysis of the system. Theoretical calculations reveal that gas cell pressure forces represent about 78% of the overall calculated force and ignoring these pressure forces lead to the same magnitude of inaccuracy in predictions
Keywords:
Friction ; Lubrication ; Rotary Combustion Engine ; Sealing Force Analysis ; Wankel Rotary Compressor

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