| 摘要 |
<p>The invention provides a variable stigmatic opening transmission device of an engine, wherein the engine with elasticity applied on the valve closing direction is in linkage connection with a cam driven member and the cam driven member is equipped with a cam abutting part for the abutting against a first and a second cams.According to the device, when the second cam moves toward the first cam, the impact of the cam abutting part to the first cam is avoided and the generation of the strike sound is also avoided.The first cam (31) is fixed to a camshaft (32).The second cam (33) can axially movebetween the motion position that the second cam can abut against the cam abutting part (56) and approach the first cam (31) and the non-motion position that the second cam cannot abut against the camabutting part (56) and go far from the first cam (31). The second cam (33) supported by the camshaft (32) is not capable of rotating relative to an axis.The first cam side of the mountain portion (33b) of the second cam is equipped with an inclined surface and the inclined surface inclines toward the internal of the radial direction of the camshaft.</p> |
