Where is the engine intake pipe located?

[OliveRose]

Engine intake pipe is located between the throttle valve and the engine intake valve. The intake pipe serves as the main air passage, while the intake manifold distributes air to each cylinder to support combustion. The air passes through the carburetor where gasoline is atomized and then enters the cylinders along with the air. The engine intake passage is the channel for air to enter and exit the air cleaner, with the air cleaner connected to the carburetor via a pipe. The intake manifold is the pipe that connects the bottom of the carburetor at its upper end to the cylinder block's intake valve at its lower end. The intake pipe consists of the main intake pipe and the intake manifold. Besides requiring power performance, the engine also needs good fuel economy and emission performance. In gasoline engines, the intake pipe must also consider issues such as fuel atomization, evaporation, distribution, and the utilization of pressure waves. In diesel engines, it is required that the airflow forms an intake vortex in the cylinder through the intake passage to improve mixture formation and combustion.