The invention discloses a brake master cylinder assembly, and aims to overcome the defect of poor sealing performance between a piston and a master cylinder wall in the prior art. The technical problem is solved through the following technical scheme that a mounting hole is formed in a main cylinder; a first piston and a second piston are sequentially arranged in the mounting hole from outside to inside; a first closed cavity is formed between the first piston and the second piston, and a second closed cavity is formed between the second piston and the mounting hole; a first oil outlet hole is formed in the position, located on the side wall of the mounting hole, in the first closed cavity, and two first sealing grooves are formed in the two sides of the first oil outlet hole. First sealing rings are arranged in the two first sealing grooves; a second oil outlet hole is formed in the position, located on the side wall of the mounting hole, in the second closed cavity, and two second sealing grooves are formed in the two sides of the second oil outlet hole; and second sealing rings are arranged in the two second sealing grooves. The two sides of the first oil outlet hole and the two sides of the second oil outlet hole are each provided with two second sealing grooves, and therefore the stability of the braking performance is guaranteed.

    本发明公开了一种制动主缸总成,旨在解决现有技术中活塞与主缸壁之间密封性能差的不足。本发明通过以下技术方案解决上述技术问题:包括:主缸的内部设置有安装孔;安装孔从外至内依次设置有第一活塞和第二活塞;第一活塞与第二活塞之间形成第一密闭腔,第二活塞与安装孔之间形成第二密闭腔;第一密闭腔内且位于安装孔的侧壁设置有第一出油孔,第一出油孔的两侧设置有两道第一密封槽;两道第一密封槽内均设置有第一密封圈;第二密闭腔内且位于安装孔的侧壁设置有第二出油孔,第二出油孔的两侧设置有两道第二密封槽;两道第二密封槽内均设置有第二密封圈。在第一出油孔、第二出油孔的两侧均设置两道第二密封槽,从而保证制动性能的稳定性。


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    Title :

    Brake master cylinder assembly


    Additional title:

    一种制动主缸总成


    Contributors:
    WO CHUNYAO (author) / LI YIPING (author)

    Publication date :

    2023-03-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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