Patent ID: 6969043
Filing Date: 2005-11-29
Classification: F16J,F16K

Abstract:
1. A solenoid valve provided with: a substantially cylindrical coil adapted to generate a magnetic field when it is energized, a center post provided concentrically with the cylindrical coil, a plunger adapted to be magnetically attracted to the center post by a magnetic field generated by the coil, a substantially bottomed cylindrical metal sleeve provided so as to cover an outer circumferential surface of the center post and plunger, a metal plate provided in the vicinity of an opening end of the sleeve and having a substantially flat surface portion extending to radial direction, and a metal case member containing the coil, center post, plunger, sleeve and plate, the solenoid valve comprising a collar provided on the sleeve and extending toward an inner circumferential surface of the case member, an annular space formed among one surface of the collar, an inner circumferential surface of the case member and a substantially flat surface portion of the plate, and a seal member provided in the space and adapted to seal each of one surface of the collar, the inner circumferential surface of the case member and the substantially flat surface portion of the plate.