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1952 Shell Oil film showing the development of the diesel engine from 1877. The diesel engine, named after the German engineer Rudolf Diesel, is an internal combustion engine in which ignition of the fuel is caused by the elevated temperature of the air in the cylinder due to mechanical compression; thus, the diesel engine is called a compression-ignition engine (CI engine).
The Diesel engine is a heat engine: it converts heat into work. During the bottom isentropic processes (blue), energy is transferred into the system in the form of work W i n {\displaystyle W_{in}} , but by definition (isentropic) no energy is transferred into or out of the system in the form of heat.
The first mobile application of the two-stroke diesel engine was with the diesel streamliners of the mid-1930s. Continued development work resulted in improved two-stroke diesels for locomotive and marine applications in the late 1930s. This work laid the foundation for the dieselisation of railroads in the 1940s and 1950s in the United States ...
The electronically controlled line of ME diesel two-stroke engines was added in 2002 with a maximum cylinder bore of 108 cm. MAN B&W Diesel, Denmark, employed approximately 2,200 at the end of 2003 and had 100 GW, or more than 8000 MC engines, in service or on order by 2004.
In a book titled Diesel Engines for Land and Marine Work, [35] Diesel said that "In 1900 a small Diesel engine was exhibited by the Otto company which, on the suggestion of the French Government, was run on arachide [peanut] oil, and operated so well that very few people were aware of the fact. The motor was built for ordinary oils, and without ...
Among the pioneering users of true diesel–electric transmission was the Swedish Navy with its first submarine, HMS Hajen (later renamed Ub no 1), launched in 1904 and originally equipped with a semi-diesel engine (a hot-bulb engine primarily meant to be fueled by kerosene), later replaced by a true diesel. [8]
A compression release engine brake, compression brake, or decompression brake is an engine braking mechanism installed on some diesel engines. When activated, it opens exhaust valves to the cylinders, right before the compression stroke ends, releasing the compressed gas trapped in the cylinders, and slowing the vehicle.
Some engines convert heat from noncombustive processes into mechanical work, for example a nuclear power plant uses the heat from the nuclear reaction to produce steam and drive a steam engine, or a gas turbine in a rocket engine may be driven by decomposing hydrogen peroxide. Apart from the different energy source, the engine is often ...