| 摘要 |
An electromagnetic valve includes a housing, a valve element, a movable core, a spring, a coil, and a stationary core. The housing includes a cylinder portion that houses the movable core so that the movable core is movable in an axial direction. An axial intermediate portion of the cylinder portion is formed as a non-magnetic portion that surrounds an outer circumference of an axial intermediate portion of the movable core. Both axial sides of the non-magnetic portion are formed as a one-side magnetic portion and an another-side magnetic portion that surround an outer circumference of the movable core. An electromagnetic force in a direction perpendicular to the axial direction, for generating a friction resistance to axial movement of the movable core, is set to be generated by energization of the coil between the outer circumference of the movable core and the one-side magnetic portion of the cylinder portion on one axial side of the non-magnetic portion and between the outer circumference of the movable core and the another-side magnetic portion of the cylinder portion on another axial side of the non-magnetic portion. |
