| 主权项 |
1. A linear solenoid outputting a thrust force in an axial direction toward a thrust direction side of the axial direction when magnetic flux is generated by energizing a coil, the linear solenoid comprising:
a movable element having a cylindrical magnetic portion, the movable element being coaxially disposed inside of the coil and movable in the axial direction; a first stator element disposed inside of the cylindrical magnetic portion of the movable element and providing magnetic flux to the movable element in a radial direction, the first stator element being made of magnetic material; a second stator element having a cylindrical shape and made of magnetic material, the second stator element (i) being disposed outside of the movable element in the radial direction that is interposed between the first stator element and the second stator element, and (ii) providing magnetic flux to the movable element in the radial direction; a third stator element having a cylindrical shape and made of magnetic material, the third stator element (i) being disposed on a thrust direction side of the second stator element, (ii) magnetically attracting the movable element toward the thrust direction side of the axial direction to draw the movable element into an inside of the third stator element, and (iii) having an opening formed on a thrust direction side of the third stator element; a cover covering the opening of the third stator element; and a through hole extends through the third stator element, wherein the through hole provides fluid communication between the inside of the third stator element and an outside of the third stator element. |
