compound engine

noun

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

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

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

This is illustrated by the two cylinders of the compound engine and by the duplication noticed in the binary engine.

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

The first compound engine was built in 1899, only one being constructed in that year.

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