Engine load: What do you mean?

Engine load is the external load of the engine, and the power output by the engine changes with the change of the external load, and the power output by the engine depends on the opening of the throttle valve, so the engine load can be expressed by the opening of the throttle valve. The size of the load is usually expressed as a percentage.

What is the load of the engine?

Analysis of engine load characteristics and its significance One of the engine performance characteristics is called load characteristics, which refers to the relationship between the effective fuel consumption rate of economic indicators and the engine load when the engine speed is constant. Using this change curve, the economy of the engine under various loads and speeds can be determined most comprehensively.

Before understanding the load characteristics, we must first know what the effective fuel consumption rate is. The measurement standard of automobile fuel consumption is generally calculated by the actual fuel consumption (liters) of the automobile driving at the specified speed 100 km. For example, the technical parameters of a car often include the fuel consumption of 65,438+000 kilometers at a constant speed of 90 kilometers per hour, which is an indicator to measure the economy of a car.

In order to measure the economic index of the engine, engineers and technicians use the effective fuel consumption rate as the index, which is referred to as fuel consumption rate for short and expressed by ge. Refers to the fuel consumption per hour per unit effective power, and the unit is g/kw. H. Of course, there are other indicators to measure the engine economy, so I won't introduce them because they have little to do with this article.

Engines are divided into gasoline engines and diesel engines. Gasoline engine relies on throttle to adjust the load, so the load characteristics of gasoline engine are also called throttle characteristics; Diesel engine adjusts the load by changing the fuel injection quantity, and changes the mixture composition by changing the fuel injection quantity, so the load characteristics of diesel engine are also called fuel adjustment characteristics.