| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a hydraulic system capable of reducing pulsation of a hydraulic oil acting on a control valve based on reverse torque of a camshaft. <P>SOLUTION: A valve timing change device is an actuator 2 actuated by the hydraulic oil supplied from an oil pressure source 1. The control valve 3 for controlling supply of the hydraulic oil from the oil pressure source 1 to the actuator and discharge of the hydraulic oil from the actuator is provided between the oil pressure source 1 and the valve timing change device. Filters 38, 39 are provided on a control valve opening part between the actuator and the control valve. Since the hydraulic oil is introduced to the control valve opening part, pulsation of the hydraulic oil generated from the reverse torque acting on the camshaft is reduced. <P>COPYRIGHT: (C)2004,JPO</p> |
