internal-combustion engine

1. A heat engine in which combustion occurs inside the engine rather than in a separate furnace;
   Heat expands a gas that either moves a piston or turns a gas turbine (synset 103585151)
   is a type of: heat engine - any engine that makes use of heat to do work
   subtypes:

   • diesel, diesel engine, diesel motor - an internal-combustion engine that burns heavy oil
   • four-stroke engine, four-stroke internal-combustion engine - an internal-combustion engine in which an explosive mixture is drawn into the cylinder on the first stroke and is compressed and ignited on the second stroke; work is done on the third stroke and the products of combustion are exhausted on the fourth stroke
   • gas engine - an internal-combustion engine similar to a gasoline engine but using natural gas instead of gasoline vapor
   • gasoline engine, petrol engine - an internal-combustion engine that burns gasoline; most automobiles are driven by gasoline engines
   • outboard, outboard motor - internal-combustion engine that mounts at stern of small boat
   • radial engine, rotary engine - an internal-combustion engine having cylinders arranged radially around a central crankcase
   • reciprocating engine - an internal-combustion engine in which the crankshaft is turned by pistons moving up and down in cylinders
   • rotary engine - an internal-combustion engine in which power is transmitted directly to rotating components
   • valve-in-head engine - internal-combustion engine having both inlet and exhaust valves located in the cylinder head
   has:

   • block, cylinder block, engine block - a metal casting containing the cylinders and cooling ducts of an engine
   • force feed, force-feed lubricating system, lubricating system, pressure feed, pressure-feed lubricating system - mechanical system of lubricating internal combustion engines in which a pump forces oil into the engine bearings
   • poppet, poppet valve - a mushroom-shaped valve that rises perpendicularly from its seat; commonly used in internal-combustion engines
   • self-starter - an electric starting motor that automatically starts an internal-combustion engine
   • supercharger - compressor that forces increased oxygen into the cylinders of an internal-combustion engine
   is a part of:

   • motorboat, powerboat - a boat propelled by an internal-combustion engine
   • automotive vehicle, motor vehicle - a self-propelled wheeled vehicle that does not run on rails
   same as: ice

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