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Drive arrangement for compressor of a transport refrigeration unit

  • US 4,846,327 A
  • Filed: 06/04/1985
  • Issued: 07/11/1989
  • Est. Priority Date: 06/04/1985
  • Status: Expired due to Term
First Claim
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1. For a transport refrigeration unit in which a refrigerant compressor is selectively belt drivable by either an internal combustion engine output through a clutch or from an electric motor output, a driving arrangement for said compressor, comprising:

  • a pulley rigidly fixed on said engine output;

    a pulley rigidly fixed on said motor output;

    a clutch having two separate pulleys including,a first clutch pulley directly supported from the housing of said compressor through a bearing means having an inner race stationarily attached to said housing, said first clutch pulley being connected to be driven through belt means from said engine pulley,a second clutch pulley directly attached to the shaft of said compressor and independently of any bearing support of said second pulley from said shaft, and being connected to be driven through belt means from said motor pulley, andfurther including means selectively operable in accordance with engine operation and non-operation to effect engagement and disengagement, respectively, of said clutch,so that said first clutch pulley is stationary when said compressor is motor driven and said first and second clutch pulleys both rotate when said compressor is engine driven.

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