| 摘要 |
PURPOSE: An inlet solenoid valve for an anti-lock brake system, a traction control system, and an electronic stability program is provided to minimize the number of parts by forming a housing, a sleeve, and a bushing as one body through injection molding, and to improve braking power through improvement of response property. CONSTITUTION: An inlet solenoid valve for an anti-lock brake system, a traction control system, and an electronic stability program comprises a housing(20) connected to an inflow port(11); a valve seat(60) mounted inside the housing; a first fitting projection(63) formed to the outer peripheral surface of one end of the valve seat; a ring piston(70) forming a second fitting projection(71) touched with the first fitting projection; a spring(100) positioned inside the ring piston; an armature(90) supporting the other side of the spring; and a plunger(80) received in the armature and the valve seat. The housing forms an aperture on a side and forms an outflow hole(22) in the center, to be connected to an outflow port(12). The valve seat forms an opening and shutting hole(62) connected to the aperture and forms a passage hole(61), to connect the opening and shutting hole and the outflow port. The ring piston is formed as a magnetic material. One side of the spring is supported to the first fitting projection. The armature comprises a magnetic body received in the housing. The plunger forms a protruded part to open and shut the opening and shutting hole.
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