Embedded engine of hydraulic pressure gradual change camshaft

The utility model relates to an embedded engine of hydraulic pressure gradual change camshaft belongs to the engine technology field, including casting the support frame 1 that there is embedded hydraulic tubing, cam 2, sleeve 3, antifriction bearing 4, preceding camshaft 5, back camshaft 6, screw 7 and embedded oil circuit 8. Preceding camshaft 5 passes through the muffjoint with back camshaft 6.Its characterized in that: establish protrudingly in the support frame and camshaft peripheral hardware recess formation fluid return circuit, control the fluid break -make through the rotation of camshaft. 本实用新型涉及种液压内嵌式发动机渐变凸轮轴，属于发动机技术领域，包括铸有内嵌液压管道的支撑架1、凸轮2、套筒3、滚动轴承4、前凸轮轴5、后凸轮轴6、螺钉7及内嵌油路8。所述前凸轮轴5与后凸轮轴6通过套筒连接。其特征在于：所述支撑架内设凸起与凸轮轴外设凹槽形成油液回路，通过凸轮轴的转动来控制油液通断。