SAE J 1339-2009 测量发动机冷却风扇功率消耗的试验方法

标准号：SAE J 1339-2009
中文标准名称：测量发动机冷却风扇功率消耗的试验方法
英文标准名称：Test Method for Measuring Power Consumption of Engine Cooling Fans
标准类型：T14
发布日期：2009/9/3 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：T14
国际标准分类号：19.080;43.060.30
引用标准：SAE J 1342-2007;SAE J 1349-2008
适用范围：This SAE Recommended Practice is intended for use in testing and evaluating the approximate performance of engine cooling fans. This performance would include flow, pressure, and power. This flow and pressure information is used to estimate the engine cooling performance. This power consumption is used to estimate net engine power per SAE J1349. The procedure also provides a general description of equipment necessary to measure the approximate fan performance. The test conditions in the procedure generally will not match those of the installation for which cooling and fuel consumption information is desired. The performance of a given fan depends on the geometric details of the installation, including the shroud and its clearance. These details should be duplicated in the test setup if accurate performance measurement is expected. The performance at a given air density and speed also depend on the volumetric flow rate, or the pressure rise across the fan, since these two parameters are mutually dependent. These parameters depend on the pressure drop across the radiator core and the ram pressure due to vehicle motion. For these reasons, the test procedure should be recognized as providing only an approximate measure of installed fan performance. Although the test procedure is based on running the fan with a motoring dynamometer, the actual installation can be used as a test fixture if an accurate torque meter is available. In this case, the same qualifications discussed apply. Finally, for the effect of a fan clutch in reducing fan use and power consumption, which is not a part of this procedure, refer to SAE J1342. This document provides a recommended test procedure for measuring and comparing the performance of fans over a range of pressure and speeds. The resulting performance data are intended for predicting the cooling performance and fuel consumption of engines using these fans, and in comparing one fan versus another.