| 摘要 |
The valve (I) has a valve body (14) connected with a movable core (12). The movable core comprises a portion, which forms an annular magnetic path. An annular attracting surface of a hollow fixed core (5) and an inner peripheral surface of cylindrical magnetic body are arranged opposite to each other. A front surface of the portion of the movable core is formed as a funnel-shaped recessed surface e.g. truncated cone surface or curved surface, to form the magnetic path, where the recessed surface increases in diameter toward a front side. |
