Air Intake Manifold
The air intake manifold of an internal combustion engine performs a number of functions.
- The network of passages direct air or air-fuel mixture from the throttle body to the intake ports in the cylinder head.
- The flow typically proceeds from the throttle body into a chamber called the plenum, which in turn feeds individual tubes, called runners, leading to each intake port.
- Engine breathing is enhanced if the intake manifold is configured to optimize the pressure pulses in the intake system.
- Supports the fuel injection system in an indirect injection engine.
See also: Acoustic Filter Elements, Air Filter, Air Intake Noise, Air Intake System, Engine Breathing, Engine Vacuum, Inlet and Exhaust Ports, Intake Stroke, Manifold, Manifold Absolute Pressure, Mass Air Flow Sensor.