Patent ID: 8350651

Claim:
An oil immersed solenoid, comprising: a tubular guide made of a magnetic material and having first and second end portions; an exciting coil provided outside the guide; a fixed magnetic pole portion at which a magnetic pole is generated by the exciting coil, the fixed magnetic pole portion being provided to be spaced apart from the first end portion of the guide; a movable core accommodated in a space of the guide so as to be movable in an axial direction of the guide, the movable core being pulled by the fixed magnetic pole portion; and an air accumulation preventing portion made of a non-magnetic material and provided between the first end portion of the guide and an end portion of the fixed magnetic pole portion; wherein the second end portion of the guide is sealed by a lid portion, a fixing nut threadedly engaging with the lid portion, a yoke provided between the fixing nut and the exciting coil, and a collar made of a non-magnetic synthetic resin provided between the yoke and the fixing nut.