Diesel power of the main indicators to measure efficiency. Diesel song from the axis of Zhou actual measured power output, which is the unit of time doing effective work, usually as a measure of horsepower unit.

The so-called effective power is that we can use the power. Because the work of the diesel engine works to overcome the internal friction loss, led all kinds of ancillary equipment and other reasons, cylinder diesel engine with the power to issue larger than the effective power. So is the effective power-cylinder diesel engine with the power to issue all kinds of loss after deduction of our real power.