Patent ID: 9583248
Date: 2017-02-28
CPC Classifications: F16H,F16K,H01F

Claim:
1. A solenoid comprising: a plunger that is reciprocatable in an axial direction; a stator that includes: a coil that generates a magnetic flux, which flows through the plunger and the stator, when the coil is energized; and a stopper that is opposed to the core in the axial direction while the plunger receiving chamber is interposed between the stopper and the core, wherein the stopper limits movement of the plunger toward a side in the axial direction, wherein: a magnetic circuit, which includes the plunger and the stator, is formed to magnetically attract the plunger toward the core when the coil is energized; the plunger receiving chamber includes a volume variable chamber that is formed between the plunger and the stopper; the stopper includes: a region adjacent to the breathing passage or at least a portion of the breathing passage is formed in a magnetism application region, wherein a leakage magnetic flux, which is leaked from the magnetic circuit, passes through the magnetism application region.