How to adjust the idle speed of single cylinder diesel engine.

Slowly loosen the throttle opening adjustment screw with a screwdriver. When the engine is about to turn off, screw it in a little bit to keep the engine running. Adjust the idle mixture adjusting screw. Let the engine run faster. Turn out the valve opening adjustment again to realize stable idle work, which is both accelerated and flameout.

The normal idle speed of diesel engine is generally 500 ~ 800 rpm. Too low is easy to shake, too high is high. As long as it doesn't shake, the design engineer wants to keep the star as low as possible in order to save fuel.

Idle performance has a great influence on emissions, fuel consumption and comfort, so idle performance is an important index for evaluation. When idling, the engine is separated from the engine and the accelerator pedal is completely released. The engine only overcomes its own operation and does not output work.

When the engine is idling, it is called idling. Idle speed should not be too high or too low. Too high will increase fuel consumption, too low will make the engine idling unstable. The lowest idle speed to ensure the stable operation of diesel engine is the best idle speed.

Extended data:

principle of operation

Single-cylinder diesel engines include two-stroke diesel engines and four-stroke diesel engines, and their mechanisms are basically the same. The main difference lies in the structure of valve train.

Every working cycle of a single-cylinder diesel engine has to go through four processes: intake, compression, work and exhaust. In a working cycle, only one stroke does work, and the other three strokes are auxiliary strokes that create conditions for the work stroke. Therefore, the work of single cylinder diesel engine is unstable.

The development of single-cylinder diesel engine still depends on the innovation of science and technology, and constantly uses new technology to improve the existing shortcomings and deficiencies of single-cylinder diesel engine and expand its application scope. For example, it is equipped with oil limiting device and emission control device to meet the needs of motor vehicle use and environmental protection.

References:

Baidu encyclopedia-single cylinder diesel engine