| 摘要 |
<p>PURPOSE:To facilitate arrangement of a bypass control valve by arranging a bypass passage bypassing an orifice and a bypass control valve in the piston of accumulator. CONSTITUTION:An accumulator 55 for damping a shock at engaging a reverse clutch 34 (friction coupling element) is arranged on a reverse clutch line 107, a one-way orifice 54 is arranged on the upper stream of the accumulator, and a bypass passage is constituted out of a passage 68 bypassing the orifice 54, an input port 58, an annular chamber 64, a communicating hole 67, a valve fitting hole 66, a pressure chamber 62, and a pressure port 57. A bypass control valve 70 for opening/closing the bypass passage 68 is received in a piston 60. Hereby, the valve 70 is effectively arranged, utilizing the dead space in the accumulator 55, and hence arrangement of the valve 70 is facilitated.</p> |
