| 摘要 |
In a valve timing control apparatus, a relative rotational phase between a drive rotational member (2) and a driven rotational member (1) is controlled by a relative rotational phase-controlling mechanism (7, 70, 75, 76, 11, 10, 9, 90a, 90b, 90c, 90d, 90e) utilizing a fluid pressure in a fluid pressure chamber (40) divided by a vane (5). The relative rotational phase can be restrained by a locking mechanism (6, 60, 6A, 6B, 61, 62) at an intermediate phase between most advanced and most retarded angle phases. As a minimum set torque applied by a biasing mechanism (8) to the drive rotational member relative to the driven rotational member, a larger minimum torque required for change from the most retarded angle phase to the intermediate phase during cranking, before warming up, or at a minimum temperature for relative rotational phase control while a fluid pressure remains, is selected. |
