fuel injection

fuel injection
Injection In*jec"tion, n. [L. injectio : cf. F. injection.] 1. The act of injecting or throwing in; -- applied particularly to the forcible insertion of a liquid or gas, by means of a syringe, pump, etc. [1913 Webster]

2. That which is injected; especially, a liquid inserted thrown into a cavity of the body by a syringe or pipe; a clyster; an enema. --Mayne. [1913 Webster]

3. (Anat.) (a) The act or process of filling vessels, cavities, or tissues with a fluid or other substance. (b) A specimen prepared by injection. [1913 Webster]

4. (Steam Eng.) (a) The act of throwing cold water into a condenser to produce a vacuum. (b) The cold water thrown into a condenser. [1913 Webster]

{Injection cock}, or {Injection valve} (Steam Eng.), the cock or valve through which cold water is admitted into a condenser.

{Injection condenser}. See under {Condenser}.

{Injection pipe}, the pipe through which cold water is through into the condenser of a steam engine.

{fuel injection}, a method of inserting fuel into internal-combustion engines by directly forcing the liquid fuel into the combustion chamber at an appropriate point in the piston cycle; in contrast to {carburetion}, in which an air-fuel mixture is drawn in by the downward stroke of the piston. [1913 Webster +PJC]


The Collaborative International Dictionary of English. 2000.

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  • fuel injection — fuel injection, adj. the spraying of liquid fuel into the cylinders or combustion chambers of an engine. [1895 1900] * * * In an internal combustion engine, introduction of fuel into the cylinders by a pump rather than by the suction created by… …   Universalium

  • fuel injection — n. 1. a system in which a fine spray of fuel is injected directly into each combustion chamber of an engine 2. such injection of fuel fuel injected adj …   English World dictionary

  • fuel injection — ► NOUN ▪ the direct introduction of fuel under pressure into the combustion units of an internal combustion engine. DERIVATIVES fuel injected adjective …   English terms dictionary

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  • fuel injection — noun mechanical system to inject atomized fuel directly into the cylinders of an internal combustion engine; avoids the need for a carburetor • Syn: ↑fuel injection system • Hypernyms: ↑mechanical system * * * ˈfuel injection [fuel injection] …   Useful english dictionary

  • Fuel injection —   A fuel delivery system whereby gasoline is pumped to one or more fuel injectors under high pressure. The fuel injectors are valves that, at the appropriate times, open to allow fuel to be sprayed or atomized into a throttle bore or into the… …   Energy terms

  • fuel injection — A form of a fuel metering system for a reciprocating engine that injects fuel directly into the cylinder rather than mixing it with air before it is taken in through the intake valve. The two types of fuel injection systems are the direct… …   Aviation dictionary

  • fuel injection — N UNCOUNT Fuel injection is a system in the engines of some vehicles which forces fuel directly into the part of the engine where it is burned …   English dictionary

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