(Mach.) A contrivance for forcing feed water into a steam boiler by the direct action of the steam upon the water. The water is driven into the boiler by the impulse of a jet of the steam which becomes condensed as soon as it strikes the stream of cold water it impels; also called Giffard's injector, from the inventor.
fuel injector, a device for actively injecting fuel into an internal-combustion engines by directly forcing the liquid fuel into the combustion chamber at an appropriate point in the piston cycle; an alternative to a carburetor, in which an air-fuel mixture is drawn in by the downward stroke of the piston.
...injector Sprengel (see Fig. 38, c) pump, or Geryk's pump (an air pump on the hydraulic principle, sealed by means of ... — The Elements of Bacteriological Technique • John William Henry Eyre
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