The throttle hose is broken. Want flower oil?

The throttle hose is broken, which costs oil.

For carburetor or throttle body gasoline injection engine, intake manifold refers to the intake pipe from the back of carburetor or throttle body to the front of cylinder head intake. Its function is to distribute the mixture from carburetor or throttle body to the air intake of each cylinder.

For port fuel injection engines or diesel engines, the intake manifold only distributes clean air to the intake of each cylinder. 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.

basic knowledge

Before we talk about the intake manifold, let's think about how air gets into the engine. In the introduction of the engine, we mentioned that the piston runs in the cylinder. When the engine is in the intake stroke, the piston moves downward, so that a vacuum is generated in the cylinder (that is, the pressure is reduced), thereby generating a pressure difference with the outside air and allowing air to enter the cylinder.

For example, everyone should have had an injection and seen how the nurse sucked the medicine into the needle! Imagine that the syringe is the engine, so when the piston in the syringe is pulled out, the medicine will be sucked into the syringe, and the engine sucks air into the cylinder in this way.

Due to the low temperature at the intake end, composite material has become a popular intake manifold material, and its interior is light and smooth, which can effectively reduce the resistance and increase the intake efficiency.