air injection system


air injection system
(AIS) any system that injects air into the exhaust stream to promote more complete oxidation of unburned exhaust gases

Dictionary of automotive terms. 2015.

Look at other dictionaries:

  • air aspirator system — (AAS) A passive air injection system that uses a one way valve instead of an air pump to introduce extra air into the exhaust stream …   Dictionary of automotive terms

  • air gulp system — A system in vehicles with secondary air injection or induction, which prevents an very rich mixture of air fuel from entering the inlet manifold during deceleration. If it did enter, unburned fuel would be forced over the hot exhaust system… …   Dictionary of automotive terms

  • injection system — See air injection system continuous injection system L jetronic fuel injection system steam injection system …   Dictionary of automotive terms

  • air injection reaction — See air Injection Reaction system …   Dictionary of automotive terms

  • air injection reaction system — (AIR system) The AIR system helps to reduce hydrocarbons and carbon monoxide levels in the exhaust by injecting air into the exhaust ports of each cylinder during cold engine operation, or directly into the catalytic converter during normal… …   Dictionary of automotive terms

  • air injection — A system that injects fresh air into the exhaust ports or a thermal reactor, for additional conversion of carbon monoxide to carbon dioxide and combustion of unburned hydrocarbons (unburned fuel vapors) found in the exhaust gases as it comes in… …   Dictionary of automotive terms

  • Secondary air injection — Theory and origins= Secondary air injection (commonly air injection, colloquially smog pump, trademark Air Injection Reactor) is an automobile emissions control strategy introduced in 1966, wherein fresh air is injected into the exhaust stream.… …   Wikipedia

  • Compressed air foam system — A fire engine using CAFS to make foam on the ground A compressed air foam system (CAFS) is a system used in firefighting to deliver fire retardant foam for the purpose of extinguishing a fire or protecting unburned areas from becoming involved in …   Wikipedia

  • Compressed Air Foam System — A Compressed Air Foam System for hand hose, abbreviated CAFS, is a system used in firefighting to deliver fire retardant foam for the purpose of extinguishing a fire or protecting unburned areas from becoming involved in flame.DescriptionRon… …   Wikipedia

  • continuous-flow fuel injection system — The system for measuring fuel and delivering it under low pressure to the outside of the intake valve. This fuel, along with air necessary for combustion, is pulled into the cylinder when the intake valve opens. In spite of its name, it is not… …   Aviation dictionary