injector

[ in-jek-ter ]

/ ɪnˈdʒɛk tər /

a person or thing that injects.

Machinery.

a device for injecting feedwater into a boiler against high pressure by means of a jet of steam.
Also called fuel injector. a mechanism consisting of a pump, valves, and nozzles for spraying fuel into the cylinders of an internal-combustion engine.

Origin of injector

First recorded in 1735–45; inject + -or²

Supplied by one injector and one pump, or two brass pumps, with valves and cages of best hard metal accurately fitted.

Illustrated Catalogue of Locomotives |M. Baird, et. al..
Now, what sort of a fool-sort of an injector has Eustis loaded on to this rig this time?

The Day's Work, Volume 1 |Rudyard Kipling
If a larger proportion of acid is used it is likely to spoil the injector.

Farm Engines and How to Run Them |James H. Stephenson
This impurity would probably prevent the successful working of an injector.

Scientific American, Volume XXXVI., No. 8, February 24, 1877 |Various

The manholes are now closed, and steam is turned on at the injector J by opening the valve v.

Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 1 |Various

injector

/ (ɪnˈdʒɛktə) /

a person or thing that injects

a device for spraying fuel into the combustion chamber of an internal-combustion engine

Also: inspirator a device for forcing water into a steam boiler