| 摘要 |
PROBLEM TO BE SOLVED: To obtain a valve opening/closing timing control device which is favorable in the control responsiveness of a relative rotation phase, and easy in the formation of a flow passage of a working fluid.SOLUTION: A valve opening/closing timing control device has: a drive-side rotating body 1; a driven-side rotating body 3; a cylindrical member 4 in the driven-side rotating body; a cylindrical bolt 5 which connects the driven-side rotating body 3 and a cam shaft 2 at the inside of the cylindrical member; an introduction passage 13c which is arranged at least at one side between the bolt 5 and the cylindrical member 4, and makes a working fluid circulate to a rotation axial core direction; an introduction communication passage 13d which is arranged at the bolt 5, and makes the working fluid of the introduction passage 13c circulate to the inside of the bolt; an advance communication passage 14a and a retardant communication passage 14b located in positions which are different in a longitudinal direction of a rotation axial core X; and a control valve body 12a which reciprocates to the rotation axial core direction at the inside of the bolt, and supplies the working fluid to the advance communication passage 14a or the retardant communication passage 14b.SELECTED DRAWING: Figure 1 |
