Hydraulic valve fully variable valve lift mechanism and the engine control device

The present invention discloses a hydraulic valve fully variable valve lift mechanism and the engine control apparatus, the valve mechanism belonging to the internal combustion engine and the fuel supply systems. When the plunger lift control valve means is increased to the circumferential annular groove is communicated with the vent hole, the plunger piston oil chamber and the hydraulic oil by the oil chamber axially straight grooves, a circumferential annular groove, and vent hole a first low-pressure oil passage flows into the accumulator chamber, the piston oil chamber and the piston oil chamber of the oil pressure decreases, reducing the amount of oil, the valve lift reduced and the maximum advance down. By the present invention, the rotation angle of the control piston, to change the time of the circumferential annular groove communicating with the vent hole, adjust the size of the minimum effective flow area of ​​the circumferential annular groove formed to the vent hole, the control of the hydraulic oil flowing out of the vent hole amount, thereby changing the maximum valve lift and seat time. The present invention is simple in structure, reliable, inexpensive and adapted to the camshaft on the opposite, lower and center-type internal combustion engine.