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Posted by Tony Conner on March 17, 2002 at 07:45:25:
In Reply to: inspirator, injector posted by Tom on March 14, 2002 at 11:04:50:
Injector: A boiler feeding device, in which the momentum of a steam jet, directed by a series of suitably disposed conical nozzles carries a stream of water into the boiler; the steam condenses within and into the water which it forces along. The action of an injector is due to the fact that the velocity of a jet of steam flowing from a nozzle is much greater than water flowing under the same conditions.
Inspirator: A lifting and forcing injector, in which 2 distinct sets of steam and water cones are combined within one body, one set for lifting, and one set for injecting.
These definitions are out of the "Mechanical Dictionary" by Audels. I highly recommend this old book to anyone studying for engineers exams, or just a general reference. The one I have was published in 1942. It even has a set of definitions for facismile transmission/scanning etc. Pretty cool old book. I wish I'd had it when I was writing my exams. It would have saved a LOT of time I spent hunting for information.