The invention discloses a double-plunger type hydraulic brake master pump, which relates to the technical field of automobile accessories, and comprises a pump body and two working units, and each working unit comprises an oil inlet joint, a working cavity, a plunger, a return spring and an oil outlet joint; a leather ring groove, an oil storage groove and an annular groove are formed in the plunger, a Y-shaped sealing ring is installed on the leather ring groove and attached to the inner wall of the working cavity, the oil storage groove is communicated with a groove in the Y-shaped sealing ring, and the oil storage groove is further communicated with a spring installation hole through a pilot hole in the plunger; one end of an oil inlet valve core of the oil inlet one-way valve extends into the annular groove, and the plunger can shift the oil inlet valve core of the oil inlet one-way valve; a transition conical surface is arranged at the end, away from the oil outlet connector, of the annular groove, and the serial valve element can be in sliding fit with the transition conical surface. On the basis that leakage at the plunger is effectively prevented, good return performance and low operating force are kept.
本发明公开了一种双柱塞式液压制动总泵,涉及汽车配件技术领域,包括泵体和两个工作单元,每个工作单元都包括进油口接头、工作腔、柱塞、回位弹簧和出油口接头;柱塞上设置有皮圈槽、储油槽和环形凹槽,皮圈槽上安装有Y型密封圈,Y型密封圈与工作腔的内壁贴合,储油槽与Y型密封圈上的沟槽相通,储油槽还通过柱塞上的先导孔与弹簧安装孔连通;进油单向阀的进油阀芯的一端伸入环形凹槽内,柱塞能够拨动进油单向阀的进油阀芯;环形凹槽远离出油接头的一端设置有过渡锥面,串通阀芯能够与过渡锥面滑动配合。在有效防止柱塞处的渗漏的基础上,保持了良好的回位性能和较低的操作力。
Double-plunger type hydraulic brake master cylinder
一种双柱塞式液压制动总泵
2024-10-15
Patent
Electronic Resource
Chinese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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