High-pressure engine

an engine in which steam at high pressure is used. It may be either a condensing or a noncondensing engine. Formerly the term was used only of the latter. See Steam engine.

See also: High-pressure

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in classic literature ?
She was a frigate of great speed, fitted with high-pressure engines which admitted a pressure of seven atmospheres.
In 1955, Lanz equipped the Bulldog with a full-diesel (or high-pressure engine), although it was still a 1-cylinder, installed horizontally, and Lanz needed help.
A high-pressure engine was simpler than the old models, and more dangerous.
While Watt is credited with inventing the low-pressure steam engine, Oliver Evans built the first high-pressure engine.
In 1815, the Fairmount Water Works opened, powered by a Boulton and Watt condensing steam engine and a high-pressure engine designed by Oliver Evans.
(Oliver Evans's high-pressure engine drove some sawmills in Pennsylvania.)
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