A component of a machine meant to take in or suck in fluid materials such as air and water. What the machine does to the materials taken in depends on the machinery in question. For example in jet engines the taken in air is converted into heated gas which is then ejected out of a jet nozzle to achieve thrust.

See also

• exhaust - Openings that are meant to expel gaseous byproducts out of the machine.
• exhaust_vent
• exhaust_pipe