Relationship between throttling and throttling

Many people don't know what the throttle is for. In fact, it can be literally understood that the throttle valve plays a vital role in the engine and directly affects the working condition of the engine, but there are many reasons why the throttle valve becomes less "throttle".

Function and principle of throttle valve

What is the function of the throttle? The throttle is a controllable valve that controls the air entering the engine. It connects the air filter with the engine body and is called the throat of the engine. Find it hard to understand? Simply tell you, the accelerator can be understood as the accelerator pedal we usually step on. Although it is always said that stepping on the throttle to give more oil, it is actually controlling the throttle to adjust the intake volume.

The air intake is controlled by the throttle valve, and the air enters the intake pipe and mixes with gasoline (mixed parts of different models and designs) to form combustible mixture, which participates in combustion and does work. In other words, the depth of stepping on the accelerator determines the opening of the accelerator, thus controlling the combustion of gasoline and providing different levels of power.

Whether it is a carburetor car or an EFI car, the function of the throttle valve is the same, which is used to control and adjust the air intake of the engine. The fuel injection of the fuel injector is to flush the gasoline in the carburetor through the negative pressure formed by the airflow in the intake pipe, and then mix it into the cylinder. This method is unevenly distributed and affects emissions, so it is gradually eliminated.

Another kind of EFI vehicle is the electronic signal provided by the air flow sensor and air pressure sensor near the throttle. The driving computer controls the fuel injector in the intake manifold to inject fuel according to various parameters, so the intake air volume determines the air-fuel ratio, which means that the function of the throttle valve can also be said to control the air-fuel ratio.

At present, there are two kinds of throttle, one is mechanical, which drives the throttle to open and close through the steel cable connected to the throttle under the accelerator pedal, but this structure is gradually being eliminated. The other is the electronic throttle. There is no cable between accelerator pedal and accelerator, but it is controlled by electronic sensor. This electronic control method has higher accuracy, thus improving the throttle lag phenomenon.

No matter what kind of throttle, the function is the same, but after a long time, it is easy to have problems and become less "throttle", so we need to clean it, so we need to know how to clean the throttle irregularly to ensure that it can work normally and let the engine have a better working state.