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Air Lift

A tradename for a pneumatic helper spring with a Schrader valve that simplifies increasing or decreasing air pressure to compensate for changes in load.

Air Line

A hose, pipe, or tube through which air passes.

Air Lock

A pocket of air that blocks the normal flow of liquid in a system.

Air Management System

The system of solenoids and valves that control the output of the air pump to the catalytic converter, air cleaner housing, or exhaust manifold.

Air Nozzle

1. The tube through which air is delivered to the exhaust gas in an air-injection system. 2. A device used to direct a stream of air into the desired area.

Air Outlet Valve

A movable door in the plenum blower assembly that directs airflow into the heater core or into the duct-work that leads to the evaporator.

Air Pollution

The introduction of impurities and contaminants, many of which are caused by humans, into the atmosphere.

Air Pressure

1. Atmospheric pressure. 2. The pressure produced by an air pump or compressor in a cylinder.

Air Pressure Test

Applying air pressure to control valve body holes and passages leading to apply devices to check for the proper application.

Air Pump

1. A belt- or direct-driven vane-type pump that supplies the air needed for most air-injection systems. 2. A term often used for air compressor.

Air Resistance

The resistance of air against an object, such as an automobile, trying to pass through it. Also referred to as air drag, aerodynamic drag, and aerodynamic resistance.

Air Scoop

Opening at the front and/or along the side of a vehicle's bodywork to channel cool, ambient air to the radiator, engine, induction system, oil cooler, or brakes.

Air Shifting

Process that uses air pressure to engage different range combinations in the transmission's auxiliary section without a mechanical linkage to the driver.

Air Shock

Also known as load-leveling shock absorber. A shock operating on principles of air pressure; may also have a hydraulic section.

Air Shock Absorber

A term often used when referring to an air shock or load-leveling shock absorber.

Air Slide Release

An air-operated release mechanism for positioning a sliding fifth wheel, operated from the cab of a tractor by actuating an air-control valve.

Air Spring

Also known as air bag. An air-filled device that functions as the spring on axles that utilize air pressure in the suspension system.

Air Spring Suspension

A single or multiaxle suspension relying on air bags for springs and weight distribution of axles.

Air Suspension Speaker

A speaker mounted in a closed box so that the enclosed air acts as a spring against the back side of the speaker cone.

Air Suspension System

A suspension system that uses contained compressed air for vehicle springing.