Marine engines on ships are responsible for propulsion of the vessel from one port to another. Whether it’s of a small ship plying in the coastal areas or of a massive one voyaging international water, a marine engine of either 4-stroke or 2-stroke is fitted on board ship for the propulsion purpose.
The marine engines are heat engines used for converting heat, which is generated by burning fuel, into useful work, i.e. developing thermal energy and transforming it into mechanical energy. The engines used onboard ships are internal combustion engines (a type), in which, the combustion of fuel takes place inside the engine cylinder and the heat is generated post the combustion process.
The most famous engine manufacturers, whose engines, are used in ships are (We will get the names of the companies of which they use the engine replace them with below mentioned):
- MAN Diesel & Turbo (Previously B&W engines) – famous for high, medium and slow speed marine engines
- Wartsila (Previously Sulzer Engines) – famous for high, medium and slow speed marine engines
- Mitsubishi – producing engines for light, medium, and heavy-duty applications
- Rolls Royce – famous for the cruise ship and naval ship engines
- Caterpillar manufactures – for medium-speed and high-speed marine diesel engines