How Does a Variable Intake Manifold Work?

[DelSienna]

Variable intake manifold working principle: By altering the length or cross-sectional area of the intake pipe, it enhances combustion efficiency, making the engine smoother with more sufficient torque at low speeds, and more fluent with greater power at high speeds. More details about variable intake manifolds are as follows: 1. One end of the intake manifold connects to the intake valve, and the other end connects to the intake resonator chamber behind the intake manifold. Each cylinder has its own intake manifold. 2. When the engine is running, the intake valves continuously open and close. When a valve opens, the air-fuel mixture in the intake manifold passes through the valve into the cylinder at a certain speed. When the valve closes, the mixture is obstructed and rebounds, creating a vibration frequency over repeated cycles.