The present invention relates to a pump device for an electronic control brake system, which includes: a housing portion; a motor cam portion mounted on the housing portion; a piston portion which is built in the housing portion and is moved by friction with the motor cam portion; a pressing portion connected to the piston portion to guide oil and to allow the piston portion to move up and down; an inlet portion which is built in the housing portion, and in which the pressing portion is inserted into the inlet portion so that oil supplied through the pressing portion can be stored in the inlet portion; a filter portion built in the housing portion and coupled to the inlet portion to surround the piston portion and to prevent foreign matters from flowing into the piston portion; a sealing portion disposed between the inlet portion and the pressing portion to prevent leakage of the oil; and a discharge portion which is built in the housing portion to selectively permit the discharge of the oil according to the pressure of the oil stored in the inlet portion. According to the present invention, it is possible to suppress the damage of the sealing portion due to the fluctuation during the operation.

    본 발명은 전자제어식 브레이크 시스템용 펌프장치에 관한 것으로, 하우징부와, 하우징부에 장착되는 모터캠부와, 하우징부에 내장되고 모터캠부와의 마찰에 의해 이동되는 피스톤부와, 피스톤부와 연결되어 오일을 안내하고 피스톤부의 상하 유동을 허용하는 압박부와, 하우징부에 내장되고 압박부가 삽입되며 압박부를 통해 공급되는 오일을 저장하는 유입부와, 하우징부에 내장되고 유입부에 결합되어 피스톤부를 감싸며 피스톤부로 이물질 유입을 방지하는 필터부와, 유입부와 압박부 사이에 배치되어 누유를 방지하는 밀봉부와, 하우징부에 내장되고 유입부에 저장된 오일의 압력에 따라 오일의 토출을 선택적으로 허용하는 배출부를 포함하여, 작동과정에서 유동에 의한 밀봉부의 손상을 억제할 수 있다.


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    Title :

    PUMP DEVICE FOR ELECTRONIC CONTROL BRAKE SYSTEM


    Additional title:

    전자제어식 브레이크 시스템용 펌프장치


    Contributors:

    Publication date :

    2019-02-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF



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