According to the present invention, disclosed is a pump device which comprises: a housing part; a piston part movably inserted into the housing part, and having a flow path communicating with a first pressure chamber provided in the housing part; a sleeve part coupled to the housing part, and having a second pressure chamber into which the piston part is inserted; a piston guide part interposed between the piston part and the housing part to guide the piston part, and including a convex part convexly formed on a first pressure chamber side; and a sealing part interposed between the piston part and the housing part to be moved by a pressure applied to the first pressure chamber so as to be in contact with the convex part.

    펌프 장치에 관한 발명이 개시된다. 개시된 펌프 장치는, 하우징부와, 하우징부에 이동 가능하게 삽입되며 하우징부에 구비되는 제1압력실과 연통되는 유로가 형성되는 피스톤부와, 하우징부에 결합되며 피스톤부가 삽입되는 제2압력실을 구비하는 슬리브부와, 피스톤부와 하우징부 사이에 개재되어 피스톤부의 이동을 안내하며 제1압력실 측으로 볼록하게 형성되는 볼록부를 포함하는 피스톤가이드부와, 피스톤부와 하우징부 사이에 개재되어, 제1압력실에 작용하는 압력에 따라 이동되어 볼록부에 접하는 실링부를 포함하는 것을 특징으로 한다.


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    Title :

    PUMP DEVICE


    Additional title:

    펌프 장치


    Contributors:

    Publication date :

    2018-11-21


    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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