| 摘要 |
<p>PROBLEM TO BE SOLVED: To immediately cut off power transmission on the input side and output side when restarting an engine in a drive range and to immediately resume power transmission on the input side and output side after starting the engine. SOLUTION: A three-port two-position type selector valve 17 is provided at a passage between a manual valve 10 and a clutch 7. The selector valve 17 is provided with a first select mode for communicating a pump side port 18 with a lock mechanism part side port 19, and a second select mode for blocking the pump side port 18 and communicating the lock mechanism part side port 19 with a drain side port 21. When starting the engine, the selector valve 17 is shifted into the second select mode, and after starting the engine, the selector valve 17 is shifted into the first select mode. Since the pressure upstream of the selector valve 17 does not escape, pressure drop and pressure rise to a clutch are expedited.</p> |
