本发明提供一种主缸。主缸构成为,对补给通路(48)与缸主体(15)的外部进行区划的密封件(52)具有从圆环状的基部(101)突出的、与活塞(18)的外周面滑动接触的内周边缘部(102)以及与缸主体(15)的周槽(34)抵接的外周边缘部(103),内周边缘部(102)的活塞轴向长度大于外周边缘部(103)的活塞轴向长度,周槽(34)在补给通路(48)侧的周壁(90)形成有斜面部(90b),以使槽宽从槽底部(88)向槽开口部(91)逐渐增大。

    A master cylinder includes a seal defining a feeding channel and an exterior of a cylinder main body having an inner circumferential lip portion which protrudes from a toric base portion and comes into sliding contact with an outer circumferential surface of a piston, and an outer circumferential lip portion which abuts a circumferential groove of the cylinder main body. The inner circumferential lip portion has a length in a piston axis direction longer than the outer circumferential lip portion. The circumferential groove has an inclined surface portion formed in a circumferential wall on the feeding channel side such that a groove width increases from a groove bottom portion toward a groove opening portion.


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    Titel :

    主缸


    Erscheinungsdatum :

    2022-06-03


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / F16J Kolben , PISTONS