type of power cycle used is the component of the engine that determines the stroke.
what component of the engine determines the stroke?
type of power cycle used
stroke (engine)





















































in the context of an internal combustion engine, the term stroke has the following related meanings:





















































bullet::::- a phase of the engine's cycle (e.g. compression stroke, exhaust stroke), during which the piston travels from top to bottom or vice versa.





















































bullet::::- the type of power cycle used by a piston engine (e.g. two-stroke engine, four-stroke engine).





















































bullet::::- "stroke length", the distance travelled by the piston in each cycle. the stroke length––along with bore diameter––determines the engine's displacement.





















































section::::phases in the power cycle.
stroke (engine)
motogp-class motorcycles are not restricted to any specific engine configuration. however, the number of cylinders employed in the engine determines the motorcycle's permitted minimum weight; the weight of the extra cylinders acts as a form of handicap. this is necessary because, for a given capacity, an engine with more cylinders is capable of producing more power. if comparable bore to stroke ratios are employed, an engine with more cylinders will have a greater piston area and a shorter stroke. the increased piston area permits an increase in the total valve area, allowing more air and fuel to be drawn into the engine, and the shorter stroke permits higher revs at the same piston speed, allowing the engine to pump still more air and fuel with the potential to produce more power, but with more fuel consumption too. in 2004 motorcycles were entered with three-, four-and five-cylinder configurations. a six-cylinder engine was proposed by blata, but it did not reach the motogp grids. presently four-cylinder engines appear to offer the best compromise between weight, power, and fuel consumption as all competitors in the 2009 series use this solution in either 'v' or in-line configuration.
grand prix motorcycle racing