| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a solenoid valve for brake system capable of enlarging the opening degree of a flow channel even in a state of a big brake pressure being applied. SOLUTION: In the solenoid valve for braking system having a hollow valve housing around which a liquid inflow port is formed and the one end of which serves as a liquid outlet port, and a plunger which extends into the inside of the hollow valve housing so as to open/close the channel between the inflow port and outlet port, the solenoid value comprises a spool which is disposed in the valve housing so as to be capable of advancing/retreating, at the center of which a first orifice having a prescribed diameter passing through in the longitudinal direction is formed, into which a plunger is entered, and a plunger entering portion having a prescribed depth is formed on the side adjacent to the plunger so as to open/close the first orifice, a bubble sheet portion which is formed to have steps on the inner face of the valve housing hollow part so as to open/close the flow outlet port, other than the first orifice which is in contact with or detached from the end of the spool when the spool advances or retreats, and a spool recovery spring for pressuring the spool to the plunger side.</p> |
