SAE J1342-2022 PDF

Scope: The techniques outlined in this SAE Recommended Practice were developed as part of an overall program for determining and evaluating fuel consumption of heavy-duty trucks and buses, but it is applicable to off highway vehicles as well. It is recommended that the specific operating conditions be carefully reviewed on the basis of actual installation data. Cooling requirements are affected by all heat exchangers that are cooled by the fan drive system. These may include radiators, condensers, charge air coolers, oil coolers, and others. 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, this procedure can be used to calculate the fan drive system’s power consumption for cooling systems using the types of drives listed below. This power consumption may then be used in determining engine net power per SAE J1349.

SAE J1342-2022 history

2022 SAE J1342-2022 Test Method for Determining Power Consumption of Cooling Fan Drive Systems
2017 SAE J1342-2017 Test Method for Determining Power Consumption of Engine Cooling Fan Drive Systems
2012 SAE J1342-2012 Test Method for Determining Power Consumption of Engine Cooling Fan Drive Systems
2007 SAE J1342-2007 Test Method for Determining Power Consumption of Engine Cooling Fan Drive Systems
2001 SAE J1342-2001 Test Method for Determining Power Consumption of Engine Cooling Fan-Drive Systems
1994 SAE J1342-1994 METHOD FOR DETERMINING POWER CONSUMPTION OF ENGINE COOLING FAN-DRIVE SYSTEMS
1989 SAE J1342-1989 Method for Determining Power Consumption of Engine Cooling Fan-Drive Systems
1981 SAE J1342-1981 Test Method for Measuring Power Consumption of Fan Drive Systems for Trucks and Buses