Parameter Term

    Taking 170F as an example,1 indicates that the gasoline engine is 1 cylinder,and the air cylinder's diameter is 70 mm,f indicates its air cool.However,170F/P.P is max power of engine,170's bore and strike is 70 and 55 mm.One of them,bore,indicates the diameter of piston,that is air cylinde's diameter,stroke means the maximum length of the piston rod from retraction to extension.Air cyline is a important part in crankcaseHP is a unit of power.Using power divide 0.73 equalling HP.Powe's international unit is watt.Uther's kw megawatt,milliwatt etc.Four stroke indicate suction stroke,compress stroke,working stroke,exhausting stroke.Compress stroke in normal working situation,its internal intake and exhaust doors will all be closed,compressing cylinder's air,to make combustible mixture's temperature rising,1.2Mpa,temperature's 330~430.But exhaust stroke's main function is out of combustible mixture.