主权项 |
一种老年三轮摩托车发动机进气凸轮,其特征在于:所述进气凸轮中心0与凸轮型线起点A的连线在第一直线L1上,进气凸轮中心0与凸轮型线终点B的连线在第二直线L2上,进气凸轮中心0与进气凸轮凸缘最外沿点C的连线在第三直线L3上,所述第一直线L1与第三直线L3之间的夹角为a,且92°≤a≤98°,所述第二直线L2与第三直线L3之间的夹角为b,且86°≤b≤92°;所述进气凸轮的角度与凸轮升程的对应关系形成升程表,该升程表为: 角度(°)升程(mm)角度(°)升程(mm)角度(°)升程(mm)00641.93921261.242620.0077662.19391281.072840.0179682.46931300.921160.0281702.75821320.785780.0383723.05221340.6651100.0485743.34611360.5584120.0587763.63651380.4651140.0689783.92021400.3850160.0791804.19411420.3177180.0893824.45461440.2628200.0995844.69871460.2201220.1097864.92301480.1892240.1199885.12351500.1689260.1301905.29491520.1558280.1403925.42931540.1454300.1505945.51071560.1352320.1617955.52631580.1250340.1779965.52381600.1148360.2032985.46211620.1046380.24001005.32211640.0944400.28871025.10041660.0842420.34981044.79561680.0740440.42341064.41501700.0638460.50981083.99051720.0536480.60911103.56011740.0434500.72141123.15411760.0332520.84691142.78411780.0230540.98601162.45081800.0128561.13951182.15231820.0026581.30951201.88521840601.49831221.6464 621.70761241.4330 。 |