Where is the car intake manifold?

The automobile intake manifold is located in the engine compartment, between the throttle valve and the engine intake valve, and can be seen after opening the engine cover. The position of the air inlet of different vehicles is different, some are in front of the engine, some are behind the engine, and the position and shape of different vehicles may be different. The intake manifold is called manifold, because after the air enters the throttle, it passes through the manifold buffer system, and the air flow channel branches here, corresponding to the number of cylinders of the engine. For example, there are four four four-cylinder engines and five five five-cylinder engines, and the air is introduced into each cylinder respectively. The intake manifold must distribute air, fuel mixture or clean air to each cylinder as evenly as possible, so the length of air flow channels in the intake manifold should be as equal as possible. In order to reduce airflow resistance and improve intake capacity, the inner wall of intake manifold should be smooth.