Patent ID: 6290205
Filing Date: 2001-09-18
Classification: F16K,Y10T

Abstract:
A valve element adapted to be arranged in a solenoid valve to open and close a valve seat, said valve element comprising:a leaf spring including an outer peripheral ring section, a hub section having a central hole, and a plurality of radial arm sections for connecting between said outer peripheral ring section and said hub section;a ring-shaped outer peripheral seal formed by vulcanizing and molding an elastic material along said outer peripheral ring section;a movable core having a cup-shaped cross section, said movable core including a cylindrical section and an end wall section, said end wall section being arranged at an end of the cylindrical section and having a central through hole, said cylindrical section having on its outer periphery a ring-shaped stepped section to be held in contact with said leaf spring and said cylindrical section having a groove section which is formed to be radially inwardly extending from said ring-shaped stepped section;a valve seal arranged at said end wall section and having a main body section disposed on an outer surface of said end wall section, a small diameter section disposed in said through hole and a holding section located on an inner surface of said end wall section and connected to said main body section by way of the small diameter section; anda holder ring made of thermoplastic resin and held in engagement with said groove section by thermal caulking;said leaf spring and said movable core being rigidly secured to each other by means of said holder ring.