Patent ID: 6659421
Filing Date: 2003-12-09
Classification: B60T,F16K

Abstract:
Electromagnetic valve, comprising:a housing base member, a valve accommodating member attached to said housing base member, said housing base member including a valve sleeve in which a magnetic armature is guided positioned on the housing base member, a tappet interacting with the magnetic armature and having a valve closure member that faces a valve seat member, a yoke ring that encompasses a valve coil seated on the housing base member, wherein the housing base member, the valve sleeve, the magnetic armature, the tappet, and the yoke ring are preassembled subassemblies, wherein the valve accommodating member includes a bore for the attachment of the housing base member, and wherein the tappet is adapted to be pushed in and out of threads or grooves arranged in a bushing or directly in the magnetic armature, with a constant tappet displacement force maintained and wherein the magnetic armature is made of a material softer than that of tappet.