#engine motor that converts thermal energy to mechanical work
supertype: #motor machine that converts other forms of energy into mechanical energy and so imparts motion
part: #camshaft #gearing
subtype: #aircraft_engine the engine that powers and aircraft
subtype: #automobile_engine the engine that propels an automobile
subtype: #auxiliary_engine__auxiliaryengine__donkey_engine a small engine (as one used on board ships to operate a windlass)
subtype: #generator engine that converts mechanical energy into electrical energy by electromagnetic induction
subtype: #alternator an old term for an electric generator that produces alternating current (especially in automobiles)
subtype: #dynamo generator consisting of a coil (the armature) that rotates between the poles of an electromagnet (the field magnet) causing a current to flow in the armature
subtype: #magneto__magnetoelectric_machine__magnetoelectricmachine a small dynamo with a secondary winding that produces a high voltage enabling a spark to jump between the poles of a spark plug in a gasoline engine
subtype: #turbogenerator generator consisting of a steam turbine coupled to an electric generator for the production of electric power
subtype: #aerogenerator__windmill__wind_generator generator that extracts usable energy from winds
subtype: #heat_engine any engine that makes use of heat to do work
subtype: #external-combustion_engine a heat engine in which ignition occurs outside the chamber (cylinder or turbine) in which heat is converted to mechanical energy
subtype: #steam_engine__steamengine external-combustion engine in which heat is used to raise steam which either turns a turbine or forces a piston to move up and down in a cylinder
subtype: #internal-combustion_engine__ICE 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
subtype: #diesel_engine__diesel__diesel_motor an internal-combustion engine that burns heavy oil
subtype: #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
subtype: #gas_engine__gasengine an internal-combustion engine similar to a gasoline engine but using natural gas instead of gasoline vapor
subtype: #gasoline_engine an internal-combustion engine that burns gasoline; most automobiles are driven by gasoline engines
subtype: #put-put__putput (informal) a small gasoline engine (as on motor boat)
subtype: #outboard_motor__outboard internal-combustion engine that mounts at stern of small boat
subtype: #radial_engine__rotary_engine an internal-combustion engine having cylinders arranged radially around a central crankcase
subtype: #reciprocating_engine__reciprocatingengine an internal-combustion engine in which the crankshaft is turned by pistons moving up and down in cylinders
subtype: #rotary_engine an internal-combustion engine in which power is transmitted directly to rotating components
subtype: #turbine rotary engine in which the kinetic energy of a moving fluid is converted into mechanical energy by causing a bladed rotor to rotate
subtype: #gas_turbine__gasturbine turbine that converts the chemical energy of a liquid fuel into mechanical energy by internal combustion; gaseous products of the fuel (which is burned in compressed air) are expanded through a turbine
subtype: #hydroelectric_turbine__hydroelectricturbine turbine consisting of a large and efficient version of a water wheel used to drive an electric generator
subtype: #Francis_turbine a type of hydroelectric turbine
subtype: #impulse_turbine__impulseturbine a turbine that is driven by jets direct against the blades
subtype: #reaction_turbine a turbine with blades arranged to develop torque from gradual decrease of steam pressure from inlet to exhaust
subtype: #steam_turbine__steamturbine turbine in which steam strikes blades and makes them turn
subtype: #Wankel_engine__Wankel_rotary_engine__epitrochoidal_engine__epitrochoidalengine a rotary engine that is a four-stroke internal-combustion engine without reciprocating parts
subtype: #valve-in-head_engine internal-combustion engine having both inlet and exhaust valves located in the cylinder head
subtype: #reaction-propulsion_engine__reaction_engine a jet or rocket engine based on a form of aerodynamic propulsion in which the vehicle emits a high-speed stream
subtype: #ion_engine__ionengine a type of reaction-propulsion engine to propel rockets in space; a stream of positive ions is accelerated to a high velocity by an electric field
subtype: #jet_engine__jetengine a gas turbine produces a stream of hot gas that propels a jet plane by reaction propulsion
subtype: #ramjet_engine__ramjet__atherodyde__athodyd__flying_drainpipe a simple type of jet engine; must be launched at high speed
subtype: #rocket_engine__rocket a jet engine containing its own propellant and driven by reaction propulsion
subtype: #takeoff_booster__takeoffbooster__booster__booster_rocket__boosterrocket__booster_unit__boosterunit__multistage_rocket__takeoff_rocket__takeoffrocket the first stage of a multistage rocket
subtype: #nuclear_rocket__nuclearrocket a rocket engine in which a nuclear reactor is used to heat a propellant
subtype: #retrorocket a small rocket engine on a larger rocket or spacecraft that is fired to slow or alter its course
subtype: #space_rocket__spacerocket a rocket powerful enough to travel into outer space
subtype: #thruster a small rocket engine that provides the thrust needed to maneuver a spacecraft
subtype: #turbojet_engine__turbojet__turbofan__turbofan_engine jet engine in which a turbine drives air to the burner
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