摩托车 发动机试验规范 净功率

[中文适用范围]： 本文件规定了用于评估摩托车发动机（如 ISO 3833 所定义）性能的方法，特别是为了以净功率评估为目的，展示全负荷下功率曲线和比燃油消耗量随发动机转速变化的情况。它适用于往复内燃机（点燃式或压燃式）（不包括自由活塞发动机）和旋转活塞发动机，无论是自然吸气还是增压，并配备机械增压器或涡轮增压器。压燃式发动机的测试特定规范在附录 A 中规定。 [外文原描述]： This document specifies methods for evaluating the performance of engines designed for motorcycles as defined in ISO 3833, in particular with a view to the presentation of power curves and specific fuel consumption at full load as a function of engine speed, for net power assessment. It is applicable to reciprocating internal combustion engines (spark-ignition or compression-ignition) ‒ excluding free-piston engines ‒ and rotary piston engines, either naturally aspirated or pressure-charged and equipped with either mechanical pressure-charger or turbocharger. Particular specifications for the test of compression-ignition engines are specified in Annex A .