In the automobile, the solenoid valve of pressure restriction type for the brake equipment which slips is controlled

摘要

(57) Abstract It designates that the solenoid valve whose in the origin of pressure control, noise is little effectively is offered as purpose. The solenoid valve (10) has had the valve plunger (26) which consists of two parts, the inside valve plunger part (27) has had the closed component (51) of the seat valve (35). This closed component (51) while forming the gap chamber (59), with the partition (57) of sleeve condition of the outer part valve plunger part (25), putting in place interval, is surrounded. When the solenoid valve (10) turns on electricity, at closed position of the seat valve (35), the inside valve plunger part (27) resisting the power of the pressure restriction spring (28), with axial direction, you reset relatively vis-a-vis the outer part valve plunger part (25), sleeve. When it reaches the point pressure restriction operation. The seat valve (35) takes part open position. At this part open position as for pressure media current being stipulated, it is guided. Because of this, it attracts police box pulsation power and as for the flow instability which is caused being suppressed, the raw ze it closes noise, the vibrational motion of the closed component (51) is evaded. This solenoid valve (10) is enabled with the automobile brake equipment which it slips is controlled.