Cam of camshaft for motorcycle engine
A technology for engines and motorcycles, applied in valve drive devices, valve details, etc., can solve problems such as the inability to reduce engine temperature, and achieve the effects of reducing the heat load of the body, improving cooling, and improving the scavenging effect.
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[0020] Such as Figure 1~3 As shown, the camshaft of the present invention includes an intake cam 1 and an exhaust cam 2 arranged at intervals, and the radius of the base circle of the intake and exhaust cams of the camshaft is 10.50 mm. The maximum lift point of intake cam 1 is point N (peach tip), the maximum lift is 5.566mm, along the clockwise direction, from point a to point N is the rising section, and the included angle is 110°; from point N to point b is the falling section section, with an included angle of 87°. The maximum lift point of the exhaust cam 2 is point X (peach tip), the maximum lift is 5.377mm, along the clockwise direction, from point c to point X is the rising section, and the included angle is 90°; from point X to point d is the falling section section, with an included angle of 113°. The included angle of the intake and exhaust cam lobe is 48.8°+56.1°=104.9°. Compared with ordinary cams, the most obvious differences are: the lift value of intake ca...
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