| 摘要 |
PURPOSE:To linearly vary the intake and exhaust amount of actuating oil by forming a notched section with a preset shape at the control section for intake or exhaust at the valve body side and keeping the opening area of an orifice for intake or exhaust in almost the same state. CONSTITUTION:Notched sections 19 and 20 are formed at the control sections 12a and 12c on the valve body 4 side. When relative rotation is generated between a valve shaft 2 and the valve body 4 by these notched sections 19 and 20, the opening area of orifices 12A and 12B for exhaust formed for control sections 12b and 12d for exhaust on the valve shaft 2 side is kept in almost the same state. As a result, oil pressure is increased linearly for the torsion angle of a torsion bar and ideal oil pressure characteristics can be obtained. Besides, the said notched sections may be provided at the control sections for intake. |
