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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.
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.
A distinctive feature of the PC50 is the use of a four-stroke engine, at a time almost all pedal-equipped mopeds used two-stroke engines. Honda's early development of 50 cc four-stroke engines was a result of Soichiro Honda's dislike of the sharp noise of two-stroke engines. [2] The PC50 used two different engines during its production.
The GY6 engine design is a four-stroke single-cylinder in a near-horizontal orientation that is used on a number of ... Taiwanese & Korean Scooters 50cc Thru 200cc ...
A Honda Super Cub engine. The most popular motorcycle in history, with over 100 million produced. A motorcycle engine is an engine that powers a motorcycle.Motorcycle engines are typically two-stroke or four-stroke internal combustion engines, but other engine types, such as Wankels and electric motors, have been used.
Original - Animated scheme of a four stroke internal combustion engine, Otto principle: #Suction stroke - Air and vaporised fuel are drawn in. #Compression stroke - Fuel vapor and air are compressed and ignited. #Power stroke - Fuel combusts and piston is pushed downwards. #Exhaust stroke - Exhaust is driven out.
The induction stroke is the first phase in a four-stroke (e.g. Otto cycle or Diesel cycle) engine.It involves the downward movement of the piston, creating a partial vacuum that draws an air-fuel mixture (or air alone, in the case of a direct injection engine) into the combustion chamber.
Miller applied this technique to the four-stroke engine, so it is sometimes referred as the Atkinson/Miller cycle, US patent 2817322 dated Dec 24, 1957. [2] In 1888, Charon filed a French patent and displayed an engine at the Paris Exhibition in 1889. The Charon gas engine (four-stroke) used a similar cycle to Miller, but without a supercharger.