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The first person to build a working four-stroke engine, a stationary engine using a coal gas-air mixture for fuel (a gas engine), was German engineer Nicolaus Otto. [4] This is why the four-stroke principle today is commonly known as the Otto cycle and four-stroke engines using spark plugs often are called Otto engines.
A four-stroke (also four-cycle) engine is an internal combustion (IC) engine in which the piston completes four separate strokes while turning the crankshaft. A stroke refers to the full travel of the piston along the cylinder, in either direction. The four separate strokes are termed:
Internal combustion engines such as reciprocating internal combustion engines produce air pollution emissions, due to incomplete combustion of carbonaceous fuel. The main derivatives of the process are carbon dioxide CO 2, water and some soot—also called particulate matter (PM). [55]
This model confirms the concept of two- and four-stroke engines' connection. The second model is the functional model. The new solution for a combustion engine was presented during scientific conferences (KONES '2002, Seminary of biofuels 2003, etc.) and in mass media (journals, newspapers, TVP, radio).
Support Excellent image and would be good with explanation about the 4 steps. sikander 01:35, 25 February 2006 (UTC) Promoted Image:4-Stroke-Engine.gif: there are exactly twice as many supporters as opposers, which is what I tend to use as my guideline. This was a very close result.
The Diesel cycle is a combustion process of a reciprocating internal combustion engine. In it, fuel is ignited by heat generated during the compression of air in the combustion chamber, into which fuel is then injected. This is in contrast to igniting the fuel-air mixture with a spark plug as in the Otto cycle (four-stroke/petrol) engine.
A compound internal combustion engine is a type of internal combustion engine (ICE) where gasses of combustion are expanded in two or more stages. A typical arrangement for a compound ICE is that the fuel/air is first combusted and expanded in one of two alternating 4-stroke combustion high-pressure (HP) cylinders, then having given up heat and ...
In engineering, the Miller cycle is a thermodynamic cycle used in a type of internal combustion engine. The Miller cycle was patented by Ralph Miller, an American engineer, U.S. patent 2,817,322 dated Dec 24, 1957. The engine may be two-or four-stroke and may be run on diesel fuel, gases, or dual fuel. [1]