compound engine

British  

noun

1. a steam engine in which the steam is expanded in more than one stage, first in a high-pressure cylinder and then in one or more low-pressure cylinders

2. a reciprocating engine in which the exhaust gases are expanded in a turbine to drive a turbocharger

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Example Sentences

Although the Wright turbo compound engine was standard on both the DC-7 and Super Constellation, it proved so unsatisfactory that airlines were not interested in Wright engines for the new jet airliners.

From Time Magazine Archive

Speed Engine and Dynamo.—A high speed compound engine, running at 500 revolutions per minute, with direct-driven dynamo for electric lighting.—3 illustrations VIII.

From Scientific American Supplement, No. 841, February 13, 1892 by Various

The success of the triple compound engine was in these instances more than had been anticipated, and induced Mr. Wilson to go a step further.

From Scientific American Supplement, No. 492, June 6, 1885 by Various

The invention of the compound engine has reduced the expense of running about one-half, while it has doubled the room left for the cargo.

From The Railroad Question A historical and practical treatise on railroads, and remedies for their abuses by Larrabee, William

Each pump had suction and discharge pipes of 29-inch bore, and was driven by a compound engine.

From Loss of the Steamship 'Titanic' by Government, British