Where is the throttle valve?

The throttle valve of Pacific Auto Network is generally located at the engine air inlet, behind the engine air filter and in front of the intake manifold. Throttle is the most important component in EFI automobile engine system. Its upper part is the air filter, and its lower part is the engine cylinder block, which is the throat of the automobile engine and connects the air filter and the cylinder block. ?

Automobile throttle is a very important part in many automobile parts, which has a key influence on the performance of automobile. Throttle is a controllable valve that controls air to enter the engine. After the air 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.

Throttle is a device that controls intake air and fuel injection into the cylinder. The position should mean that air enters the air filter-intake hose-throttle-intake branch pipe-cylinder head-cylinder from the outside. Pedal The weight of the accelerator pedal controls the opening and closing of the throttle valve, thus controlling the vehicle speed and speed.

Theoretically, it can be simply said that the more valves, the better. The more intake and exhaust valves, the more intake-compression-work-exhaust can be realized. Nowadays, the more popular cars are double overhead camshafts with four valves per cylinder, two intake valves and two exhaust valves. One camshaft drives the intake valve and the other camshaft drives the exhaust valve. However, at present, the application of automobile turbocharging device can improve the driving performance of automobile.

There are two kinds of throttles: traditional cable throttle and electronic throttle. The traditional engine throttle control mechanism works by pulling a cable (soft steel wire) or a pull rod. One end of the cable 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. (Photo/Text/Photo: Pacific Auto Network Chen Miaoling)