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Four-stroke cycle used in gasoline/petrol engines: intake (1), compression (2), power (3), and exhaust (4). The right blue side is the intake port and the left brown side is the exhaust port. The cylinder wall is a thin sleeve surrounding the piston head which creates a space for the combustion of fuel and the genesis of mechanical energy.
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.
Thermodynamics. 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]
An animation showing the cycle of the engine. The Scuderi engine, in 2005–2013 was a claimed new type of engine with claimed benefits. No engine to date has been produced commercially. In 2009, the company claimed to have raised $35M to develop the engine, and in 2010 said it was seeking to raise another $40m. [1]
Otto's atmospheric engine Otto's 1876 four cycle engine Diagram of Otto's 1876 four cycle engine. Nicolaus August Otto (10 June 1832 – 26 January 1891) was a German engineer who successfully developed the compressed charge internal combustion engine which ran on petroleum gas and led to the modern internal combustion engine.
This is a video montage of the Otto engines running at the Western Minnesota Steam Threshers Reunion ( WMSTR ), in Rollag, Minnesota. (2min 16sec, 320x240, 340 kbit/s video) The Otto engine is a large stationary single-cylinder internal combustion four-stroke engine, designed by the German Nicolaus Otto. It was a low-RPM machine, and only fired ...
The M4+2 engine has a four-stroke piston and a two-stroke piston. The shaft of the four-stroke piston rotates twice as fast as the shaft of the two-stroke piston, and the two-stroke part always runs at half speed. This ensures that both parts work optimally regarding fuel consumption at all times. The same principles apply to having two ...
The twingle engine (U.S. English) or split-single engine (British English) is a twin cylinder (or more) two-stroke engine; more precisely, it has one or more U-tube cylinders that each use a pair of pistons, one in each arm of the U. However, both pistons in each pair are used for power (and the underside of both supplies fuel air mixture, if ...