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

The effect of a triple-expansion engine is sometimes obtained in a measure by making the volume of the low-pressure cylinder of a compound engine 6 or 7 times that of the high-pressure.

From Steam Engines Machinery's Reference Series, Number 70 by Anonymous

There is no question but that there is a great advantage in the compound engine, for stationary and marine engines.

From Rough and Tumble Engineering by Maggard, James H.

Driven by a little steeple compound engine, in the pride of her youth she could make ten knots.

From Captain Scraggs or, The Green-Pea Pirates by Grant, Gordon

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