| 摘要 |
PURPOSE: A hydraulic pump for an electronic control brake system is provided to improve the assembling by removing a separate component for fixing a discharging ball and a supporting spring. CONSTITUTION: A hydraulic pump for an electronic control brake system comprises a bore(120) and a component unit. The bore is formed in a modulator block and is communicated with a suction port and an outlet port. In order to press the fluid of the suction port and discharge to the outlet port, a component unit is installed in the bore. The component unit is installed in the bore in order to reciprocate. The component unit comprises a piston, a suction valve portion(140) and a discharging valve portion(150). According to the location of the piston, the suction valve portion switches the outlet portion of the suction flow passage. The discharge valve portion is included in one side of the bore. The discharging valve portion comprises a valve sheet(151), a pump cap, a discharging ball(152) and a pulsation decreasing member. |
