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. 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.
INJECTOR
In*ject"or, n.
1. One who, or that which, injects.
2. (Mach.)
Defn: 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.
INJELLY
In*jel"ly, v. t.
Defn: To place in jelly. [R.]
INJOIN
In*join", v. t. Etym: [Obs.]
Defn: See Enjoin.
INJOINT
In*joint, v. t. Etym: [Pref. in- in + joint.]