| 摘要 |
PURPOSE:To prevent the large pulsation of the output hydraulic pressure supplied from a pressure adjusting valve by supplying a signal pressure into the pressure adjusting valve through a plurality of throttles having a nearly equal opening area and reservoirs having an equal depth in succession and alternately. CONSTITUTION:A duty solenoid 1 generates a signal pressure by carrying out electronic control according to the control elements. A pressure adjusting valve 3 outputs the corresponding hydraulic pressure in correspondence with the signal pressure, and the output hydraulic pressure performs electronic control according to the control elements as a result. Since the signal pressure is supplied into the pressure adjusting valve 3 through a plurality of throttles 49, 47, and 51 having a nearly equal opening area and liquid reservoirs 43 and 45 having a nearly equal sectional area and an equal depth in succession and alternately, the pulsation components of the signal pressure is suppressed by the muffler principle, even if the pulsation components are contained, because of the signal pressure generated by the electronic control of the solenoid 1, and the large pulsation of the output hydraulic pressure supplied from the pressure adjusting valve 3 can be prevented. |
