Patent ID: 6231029
Filing Date: 2001-05-15
Classification: B60T,F16K

Abstract:
A solenoid valve for an anti-lock brake system having a modulator comprising:a magnetic core inserted into a bore provided to said modulator, and having a plunger hole formed extending from its upper end to its middle, an inlet passage provided to its middle from its lower end, an outlet passage provided at the lower end of said plunger hole, and an invariable orifice allowing said inlet passage to communicate with said outlet passage;a plunger installed in said plunger hole in such a manner that it is movable up and down, and having a ball on its lower end for opening and closing an upper end of said invariable orifice; anda piston provided to said inlet passage in such a manner that it is movable up and down, and having an eccentric hole formed vertically passing through its interior, thus forming a variable orifice along with a lower end of said invariable orifice.