| English | Spanish |
| aircraft engine emission | emisiones de motores aéreos |
| aircraft engine emission The formation and discharge of gaseous and particulate pollutants into the environment, especially the stratosphere, chiefly from airplanes, helicopters and other high-altitude aircrafts | emisiones de motores aéreos |
| bypass ratio of an engine | relación de derivación de un motor |
| chlorinated engine, gear and lubricating oils | Aceites lubricantes clorados de motores y engranajes |
| combustion engine An engine that operates by the energy of combustion of a fuel | motor de combustión |
| diesel engine | motores diesel |
| diesel engine An internal combustion engine operating on a thermodynamic cycle in which the ratio of compression of the air charge is sufficiently high to ignite the fuel subsequently injected into the combustion chamber | motores diesel |
| engine load conditions | condiciones de carga del motor |
| European Programme on Engines, Fuels and Emissions | programa europeo sobre las emisiones, los carburantes y las tecnologías de los motores |
| four stroke engine | motor de cuatro tiempos |
| four stroke engine An internal combustion engine whose cycle is completed in four piston strokes; includes a suction stroke, compression stroke, expansion stroke, and exhaust stroke | motor de cuatro tiempos |
| gas engine An internal combustion engine that uses gaseous fuel | motor de gas |
| gasoline engine | motores de gasolina |
| gasoline engine An internal combustion engine that uses a mixture of air and gasoline vapour as a fuel | motores de gasolina |
| non-chlorinated engine, gear, lubricating oils | Aceites lubricantes no clorados de motores y engranajes |
| other engine, gear and lubricating oils | Otros aceites lubricantes de motores y engranajes |
| two-stroke engine An internal combustion engine whose cycle is completed in two strokes of the piston | motor de dos tiempos |
| waste engine, gear and lubricating oils | aceites lubricantes de motores y engranajes |
| waste engine, gear & lubricating oils | Aceites lubricantes de motores y engranajes |
| waste engine-oil | residuo de aceites de motor |
