Patent ID: 7661653

Claim:
An electromagnetic actuator comprising: a coil that is formed in an annular shape, wherein the coil generates magnetic force when energized; a plunger; and a stator that receives the coil inside the stator, wherein: the stator forms a magnetic circuit along inner and outer circumferences of the coil through the plunger; the stator includes a first stator and a second stator; the first stator includes a magnetic attraction portion that attracts the plunger in an axial direction of the plunger by the magnetic force generated by the coil, and a first yoke portion that covers the outer circumference of the coil; the second stator includes a radial direction magnetism delivery-receipt portion that delivers magnetism in a radial direction of the plunger to and receives magnetism in the radial direction from the plunger, and a second yoke portion that covers the outer circumference of the coil; and the first yoke portion and the second yoke portion overlap in the axial direction and are magnetically joined.