| 摘要 |
<p>Provided is an electromagnetic actuator such that size reduction in accordance with the outer diameter of a coil winding can be achieved while sealing property between a fixed core and a coil part is ensured. On the outside of the outer periphery of a fixed core (12), a cylindrical part (15a) of a moving core (15) is disposed movably along its axis. A coil part (16) is disposed on the outside of the outer periphery of the cylindrical part (15a). The fixed core (12) includes a protruding part (12b) protruding from an end of the cylindrical part (15a). Between the protruding part (12b) and the coil part (16), a ring-shaped seal member (18) is disposed, so that a gap corresponding to the thickness of the cylindrical part (15a) is provided between the protruding part (12b) and the coil part (16). Thus, by disposing the ring-shaped seal member in the gap between the protruding part (12b) and the coil part (16), size reduction in accordance with the outer diameter of the coil winding can be achieved while the sealing property between the fixed core (12) and the coil part (16) is ensured.</p> |
