Internal combustion engines, working on the 'Otto' four stroke cycle.
Either petrol (Gasoline) or Diesel (Compression ignition).
Some have been made using a two stroke principle but have been outlawed because of emissions.
Apart from that, electric motors are now being pushed the fore, to enable emission free transport.
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steam engines and combustion automobiles
the first airplanes used engines very similar to ones found in automobiles, later aircraft often featured air cooled rotary engines for their light weight before being replaced by jet engines.
1916 aircraft engines. 1923 motorcycles. 1928 automobiles.
Vauxhall is a type of engine that is produced for use in automobiles. There are several different types of Vauxhall engines including the Astra and Meriva engines.
automobiles and technic in bike engines are also
There were gasoline and diesel engines, as today, but also some early steam engines (external combustion), notably the Stanley Steamer (1902-1924).
All automobiles use 4 cycle engines. 2 cycles are for small moterized bikes or lawn mowers
Joseph Potak has written: 'GM LS-series engines' -- subject(s): Modification, Automobiles, Motors, General Motors automobiles, Customizing
they are 4 stroke engines...
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Maureen Shields Lorenzetti has written: 'Alternative Motor Fuels' -- subject(s): Alternate fuels, Automobiles, Electric, Diesel motor, Electric Automobiles, Internal combustion engines, Spark ignition, Motor fuels, Spark ignition Internal combustion engines