The invention discloses an automobile plunger pump system. The automobile plunger pump system comprises a pump body, a supporting base, a pump plunger, a driving device, a guide sleeve, a first elastic piece, a sealing structure, a check ring and a one-way valve structure, a back pressure cavity is formed between the pump plunger and the supporting base, the first elastic piece is located on the side, deviating from the supporting base, of the guide sleeve, and the sealing structure is sleeved between the pump plunger and the guide sleeve. According to the automobile plunger pump system, the first elastic piece is arranged outside the back pressure cavity, so that the inner diameter of the back pressure cavity is reduced, the volume of the back pressure cavity is reduced accordingly, meanwhile, the guide length of the pump plunger during movement can be increased, the effective compression ratio of the pump plunger during movement can be increased, therefore, the oil return efficiencyof the automobile plunger pump system is improved, and the performance of an anti-lock braking system is enhanced.
本申请公开了一种汽车柱塞泵系统,包括泵体、支撑座、泵柱塞、驱动装置、导向套、第一弹性件、密封结构、挡圈以及单向阀结构,泵柱塞与支撑座之间形成背压腔,第一弹性件位于导向套背离支撑座的一侧;密封结构套设于泵柱塞和导向套之间。本实施例公开的汽车柱塞泵系统将第一弹性件设置在背压腔外,这样可以令背压腔的内径减小,背压腔的容积也就随之减小,同时,泵柱塞运动时的导向长度也能够增加,可以提高泵柱塞运动时的有效压缩率,从而提高了该汽车柱塞泵系统的回油效率,增强了防抱死系统的性能。
Automobile plunger pump system
一种汽车柱塞泵系统
2021-02-12
Patent
Electronic Resource
Chinese
IPC: | F04B Verdrängerkraft- und Verdrängerarbeitsmaschinen für Flüssigkeiten , POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein |
BRAKE DEVICE, PLUNGER PUMP AND METHOD FOR MANUFACTURING PLUNGER PUMP
European Patent Office | 2017
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