Engine speed, physical parameters, and engine speed are related to the number of times of work done per unit time or the size of the effective power of the engine, that is, the effective power of the engine changes with the speed.Therefore, when describing the effective power of the engine, it is necessary to indicate its corresponding speed at the same time.
The effective power and its corresponding speed specified on the engine product label are called the rated power and rated speed respectively.The working condition of the engine at the rated power and speed is called the calibration condition.The calibrated power is not the maximum power that the engine can emit, it is the maximum use limit of effective power formulated according to the purpose of the engine.Same modelengine, when its purpose is different, its calibrated power value is not the same.The effective torque also varies with engine operating conditions.Therefore,automobile engineTake the maximum torque that can be output and its corresponding speed as one of the evaluation methods for engine power performanceindex。
