| 摘要 |
PURPOSE:To simplify a device and reduce a cost by constituting a selector control valve to function as an oil pressure selector valve for feeding a pilot pressure to a pressure reducing valve and also to function as an oil pressure selector valve for selectively feeding pressure oil to either of two frictional engagement elements. CONSTITUTION:A pressure governing valve 104 is provided for governing a pressure of delivery oil of an oil pump 103 to a specified oil pressure in accordance with a pilot pressure, and one end of a selector control valve 122 is connected to a delivery oil passage 121 branched from a delivery passage 110 of the pump 103. This selector control valve 122 is connected to a first speed/ reverse brake 36 via a feeding and discharging oil passage 124 and is connected to a first electromagnetic selector valve 111 via a common discharging oil passage 123. This selector control valve 122 is also connected to a fourth-fifth speed clutch via another feeding and discharging oil passage and a pair of discharging oil passages 126, 127 are connected to the selector control valve 122. Accordingly, pressure oil from the first electromagnetic selector valve 111 can be fed by the selector control valve 122 to either of the first speed/ reverse brake 36 and the fourth-fifth speed clutch. |
