What is the principle of throttle?

The throttle is used to adjust the engine speed. The greater the throttle opening, the lower the engine speed. There is an air inlet next to it. When the throttle opening is large, the air pressure inside the engine is smaller than the external air pressure. Part of the air enters from the small hole next to it, taking away the corresponding gasoline. That is, the smaller the throttle, the more gasoline you take away.

Throttle is a controllable valve to control the air entering the engine. After the gas enters the intake pipe, it will be mixed with gasoline to form a combustible mixture, which will be burned to do work. It connects the air filter and the engine block, and is called the throat of the automobile engine.

There are two kinds of throttle valves: traditional cable throttle valve and electronic throttle valve. The traditional engine throttle control mechanism works through a pull wire (soft steel wire) or a pull rod. One end of the pull wire or pull rod is connected with the accelerator pedal, and the other end is connected with the accelerator linkage plate. The electronic throttle mainly uses the throttle position sensor to control the throttle opening according to the energy required by the engine, so as to adjust the intake air.

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