compound engine

1. (Mechanical Engineering) 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. (Mechanical Engineering) a reciprocating engine in which the exhaust gases are expanded in a turbine to drive a turbocharger

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

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References in periodicals archive

The technology is intended to offer a 3 percent improvement in fuel efficiency over the current 13-litre Turbo Compound engine, the D13TC.

Volvo Trucks to launch new Turbo Compound technology

It has a vertical boiler, two-cylinder compound engine and three-speed power transmission.

SETTING THE Bar High: RUMELY EXPO DAZZLES WITH ADDITION OF 36 HP RUMELY STEAM ENGINE DISPLAY

Yet Forncett Industrial Steam Museum, about 10 miles south of Norwich, has a Vickers Armstrong 147hp Horizontal Cross Compound engine from London's Tower Bridge.

Steam up in Norfolk: watch Tower Bridge's engine in action

Alfred Holt (1829-1911), founder of the Blue Funnel Line, was also an engineer and designer of the compound engine. His work ensured the ultimate success of the long-distance steamer.

They ruled the waves; Maritime TALES

Evans was so impressed with Drew's concept for a much-more-efficient engine that he started up a new business venture called Compound Engine Corp.

Lawn king: from headquarters near tiny Coatesville, Art Evans builds the world's fastest lawnmowers. (Cover Story)

DDC is working on new designs such as the Turbo Roto compound engine, with power densities expected to be 335 kW/litre, and the Sterling external combustion engine.

Greening the diesel

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