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Optimal performance design guidelines for thrust slide-bearings in scroll compressors for maximum efficiency.

Author(s) : ISHII N., OKU T., ANAMI K., et al.

Summary

This study presents optimal design guidelines for the thrust slide-bearing in scroll compressors to yield maximum efficiency. The average Reynolds equation analysis by Patir & Cheng and the solid contact theory by Greenwood & Williamson are applied to calculate the resultant lubrication performance for a given value of the friction area of the thrust slide-bearing, thus determining the friction coefficient for the thrust slide-bearing. With increasing friction area, the friction coefficient was found to decrease gradually, due to the larger oil film force. However, the influence of the oil viscous force was found to increase for large friction areas, thus increasing the friction coefficient. As a result of these two counteracting effects, optimal performance was found at a certain intermediate value of the friction area. This optimal friction area was determined for a range of orbiting speeds, thrust loads, oil viscosities and wedge angles, in order to provide optimal performance design guidelines for thrust slide-bearings in scroll compressors.

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Details

  • Original title: Optimal performance design guidelines for thrust slide-bearings in scroll compressors for maximum efficiency.
  • Record ID : 2009-0123
  • Languages: English
  • Source: 2008 Purdue Conferences. 19th International Compressor Engineering Conference at Purdue & 12th International Refrigeration and Air-Conditioning Conference at Purdue [CD-ROM].
  • Publication date: 2008/07/14

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