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

As has already been stated, the introduction of the compound engine has been attempted, but with less success than in Europe, by several American engineers.

From A History of the Growth of the Steam-Engine by Thurston, Robert H.

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

These vessels are now invariably fitted with the compound engine and surface-condensers.

From A History of the Growth of the Steam-Engine by Thurston, Robert 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