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High efficiency development of a reciprocating compressor by clarification of loss generation in bearings.

Number: pap. n. C9, 1425

Author(s) : MATSUI M., KITSUNAI Y., INAGAKI K.

Summary

An analytical model for mixed lubrication in bearings of reciprocating compressors for refrigerators has been developed and a new bearing which could decrease its friction losses by 20% has been designed. Friction losses, which are generated in the journal and thrust bearing of our reciprocating compressor, are estimated to be one-third or more of the all losses, so it is an essential issue to decrease bearing losses to design more efficient compressors. The developed analytical model can calculate the oil film pressure and solid contact pressure between bearing and shaft in each bearing simultaneously. And it can also specify the shaft posture which changes at each time step and calculate the loss generated by oil viscosity and that by contact pressure. By using this model, how and how much friction loss is generated in each bearing was clarified and specific approach to decrease bearing losses was also clarified.

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Pages: 8 p.

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Details

  • Original title: High efficiency development of a reciprocating compressor by clarification of loss generation in bearings.
  • Record ID : 30001342
  • Languages: English
  • Source: 2010 Purdue Conferences. 20th International Compressor Engineering Conference at Purdue.
  • Publication date: 2010/07/12

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