Patent ID: 7584937
Filing Date: 2009-09-08
Classification: F16K

Abstract:
1. A linear solenoid with an axis comprising: a coil that generates magnetic force due to transmission of current therethrough; a plunger with an end face; a stator that movably supports the plunger; and a yoke including a bottom face, wherein a biasing member biases the plunger in a first direction along the axis; wherein the stator magnetically attracts the plunger when current is transmitted through the coil so as to move the plunger in a second direction along the axis opposite to the first direction; wherein, when current transmission through the coil is stopped, the biasing member biases the plunger to abut the bottom face of the yoke at a plurality of abutted portions; and wherein non-contact portions are included between the abutted portions at the periphery of the plunger, the non-contact portions extending beyond the periphery of the plunger, and the plunger and the yoke are spaced away from each other in the direction of the axis by the non-contact portions.