| Subject | English | Catalan |
| environ. | 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 | emissió de motors aeris |
| environ. | combustion engine An engine that operates by the energy of combustion of a fuel | motor de combustió |
| load.equip. | combustion engine lift truck | carretó elevador tèrmic |
| load.equip. | compression ignition engine | motor dièsel |
| load.equip. | compression ignition oil engine | motor dièsel |
| comp., MS | decision engine | motor de decisions (Software or service able to process a large amount of data and provide reports that help users make more informed decisions) |
| environ. | 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 | motors diesel |
| load.equip. | diesel engine | motor dièsel |
| load.equip. | diesel oil engine | motor dièsel |
| load.equip. | electric engine | motor elèctric electromotor |
| load.equip. | engine coolant temperature gauge | indicador de temperatura del refrigerant |
| load.equip. | engine coolant temperature indicator | indicador de temperatura del refrigerant |
| load.equip. | engine driven extension fork lifting truck | carretó elevador de forca entre llarguers tèrmic |
| load.equip. | engine driven fork lifting truck | carretó elevador de forca tèrmic |
| load.equip. | engine driven tractor truck | carretó tractor tèrmic |
| load.equip. | engine oil-pressure gauge | manòmetre d'oli |
| environ. | 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 quatre temps |
| environ. | gas engine An internal combustion engine that uses gaseous fuel | motor de gas |
| environ. | gasoline engine An internal combustion engine that uses a mixture of air and gasoline vapour as a fuel | motor de gasolina |
| load.equip. | gasoline engine | motor de gasolina |
| load.equip. | heat engine | motor tèrmic |
| load.equip. | liquified petroleum gas engine | motor de gas liquat del petroli motor de GLP |
| load.equip. | LPG engine | motor de gas liquat del petroli motor de GLP |
| load.equip. | petrol engine | motor de gasolina |
| load.equip. | retractable mast engine driven lifting truck | carretó elevador de bastiment tèrmic |
| comp., MS | search engine | motor de cerca (A program that searches for key words in documents, databases, Internet content or other files) |
| comp., MS | synchronization engine | motor de sincronització (A software system that retrieves information from a source data store and synchronizes (pushes) to a target data store. Examples of synchronization engines are the ILM 2007 and FIM 2010 synchronization engines, and the service that synchronizes data rows in the SQL Server Express database with objects in the Microsoft Office Outlook data store) |
| comp., MS | tiering engine | motor de jerarquització (A service that tracks regions of storage and may move data between them based on an input/output policy or other administrator-specified rules) |
| comp., MS | tiering policy engine | motor de normes de jerarquització (A service that tracks regions of storage and may move data between them based on an input/output policy or other administrator-specified rules) |
| environ. | two-stroke engine An internal combustion engine whose cycle is completed in two strokes of the piston | motor de dos temps |