| 摘要 |
PROBLEM TO BE SOLVED: To reduce the size and weight of a solenoid valve by putting a seat member in metal touch with a passage hole of a valve housing instead of pressing it therein to secure sealing performance therebetween. SOLUTION: This solenoid valve structure comprises a valve element slidably provided in the valve housing 1 for opening/closing a valve hole 13 of the seat member 12 at its small-diameter upper end and the seat member 12 arranged along the almost axial direction of an one-end opening 6a of a second passage 6 for allowing the valve element to be seated on or off. The valve housing is formed of an aluminum alloy material while the seat member is formed of a highly hard ironic metal material. A tapered face 6b is formed at the opening edge of the second passage 6 and an acute-angle outer peripheral edge 12b is formed at a lower end 12a of the seat member. The outer peripheral edge is pushed and bitten into the tapered face in the axial direction, thereby securing the sealing performance between the tapered face of the second passage and the outer peripheral edge of the seat member. COPYRIGHT: (C)2004,JPO
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