According to an embodiment of the present invention, a pump unit of an electronically controlled brake system includes: a cylinder which is installed in a pressure chamber of a block having an inlet and an outlet individually formed thereon and has a first flow path formed to be connected to the inlet and the outlet; a piston which is coupled to an entrance side of the first path, has a second path formed to be connected to the inlet and the outlet, and moves in a reciprocating motion in the cylinder as a needle bearing of a motor rotates; an inlet valve which is installed on the exit side of the second flow path in the cylinder to be opened and closed; and an outlet valve which has a protruding surface closely installed thereon to protrude in the pressure chamber in one direction and block the exit side of the first flow path, is spaced apart from the first flow path when a fluid flows into the cylinder, and connects the exit side of the first flow path and the outlet.

    본 발명에 따른 전자제어식 브레이크 시스템용 펌프유닛은, 유입구와 배출구가 각각 형성된 블록의 압력 챔버 내에 설치되며, 상기 유입구와 상기 배출구에 연결되도록 제1유로가 형성된 실린더와, 상기 제1유로의 입구측에 결합되고, 상기 유입구와 상기 배출구에 연결되도록 제2유로가 형성되며, 모터의 니들 베어링이 회전함에 따라 상기 실린더 내에서 왕복운동을 하는 피스톤과, 상기 실린더의 내부에서 상기 제2유로의 출구측에 개폐 가능하게 설치되는 인렛 밸브 및, 상기 압력 챔버 내에서 일 방향으로 돌출된 돌출면이 상기 제1유로의 출구측을 차단하는 상태로 밀착 설치되며, 상기 실린더의 내부로 유체가 유입되는 경우 상기 제1유로로부터 이격되어, 상기 제1유로의 출구측과 상기 배출구를 연통시키는 아웃렛 밸브를 포함한다.


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    Title :

    PUMP UNIT FOR ELECTRONIC CONTROL BRAKE SYSTEM


    Additional title:

    전자제어식 브레이크 시스템용 펌프유닛


    Contributors:

    Publication date :

    2016-06-14


    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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