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Standard

SAE J1342_198107

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Note: Latest version: SAE J1342_202208

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Abstract

The testing technique outlined in this SAE Recommended Practice was developed as part of an overall program for testing and evaluating fuel consumption of heavy-duty trucks and buses. The technique outlined in this recommended practice provides a general description of the type of equipment and facility which is necessary to determine the power consumption of these engine-driven components. It is recommended that the specific operating conditions suggested be carefully reviewed on the basis of actual data obtained on the specific vehicle operation. Because of the variation in size, shape, configuration, and mountings available in cooling fans and fan drive systems, specific test devices have not been included. Using known power/speed relationships for a given fan as developed by SAE J1339, Test Method for Measuring Power Consumption of Cooling Fans for Trucks and Buses, this procedure can be used to calculate the fan power requirements for truck and bus cooling systems using fixed-ratio, speed-modulating, and on-off fan drive control.

Products specifications

  • Standard from SAE International
  • Published:
  • Withdrawn:
  • Document type: IS
  • Pages
  • Publisher: SAE International
  • Distributor: SAE International

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