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heat engine

noun, Thermodynamics
a mechanical device designed to transform part of the heat entering it into work.
Origin of heat engine
1890-95 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for heat engine
  • To produce any kind of useful propulsion energy from heat requires a heat engine.
  • When the heat engine stops, the flexible shaft stops.
  • There are many ways to arrange that, but it all begins with a heat engine and the fuel used to make the heat.
  • Time is something measured by a clock, which is a heat engine that requires a free energy source.
  • The climate reacts to temperature differences in much the same way as any heat engine.
  • So the electric motor has to be thermally isolated from the heat engine or new magnetic materials must be developed.
  • At this time, high battery cost justifies a heat engine for range.
  • Every reversible heat engine operating between the same two temperature reservoirs have identical efficiency.
  • If you look under the hood of a car or a truck, you will see a heat engine.
  • Thus it is doubly impracticable to use a heat engine to recapture the energy.
British Dictionary definitions for heat engine

heat engine

an engine that converts heat energy into mechanical energy
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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