VVT (Variable Valve Timing) oil duct structure of engine camshaft

The engine camshaft VVT oil duct structure is composed of a cylinder cover main oil duct, a camshaft bearing cover oil groove, a camshaft front end oil duct, a central control valve bolt oil duct and a VVT oil duct which are sequentially connected, and the front end of the cylinder cover main oil duct is connected with a cylinder body oil duct. An oil way is simple and shortened, matched parts are reduced, oil pressure loss is reduced, and the response speed of the VVT can be effectively increased. 本实用新型发动机凸轮轴VVT油道结构，由依次连接的缸盖主油道、凸轮轴轴承盖油槽、凸轮轴前端油道、中央控制阀螺栓油路、VVT油路组成，缸盖主油道前端与缸体油道连接。本实用新型油路简单、油路变短，配合零件减少，油压损失降低，能有效提高VVT响应速度。