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2. 发明授权

US6142751A Hydraulic unit for a vehicle brake system 失效
标题翻译：用于车辆制动系统的液压单元
公开(公告)号：US6142751A
公开(公告)日：2000-11-07
申请号：US92178
申请日：1998-06-05
申请人： Michael Krauter , Nikolaus Proebsting , Marc Finger , James J. Lundy, Jr. , Ron Angle
发明人： Michael Krauter , Nikolaus Proebsting , Marc Finger , James J. Lundy, Jr. , Ron Angle
IPC分类号： B60T17/02 , B60T8/36 , F04B35/02
CPC分类号： B60T8/368
摘要： A hydraulic unit for a vehicle brake system that enables limiting wheel brake slip is known. To that end, the hydraulic unit has at least one piston pump, which is drivable by an electric motor and empties a reservoir that is filled on the occasion of the limitation of wheel brake slip. This reservoir comprises a cylinder, embodied in the manner of a blind bore, as well as a piston that divides a storage chamber from a spring chamber in the cylinder, a spring, and a closure element that prevents water from entering the cylinder if the hydraulic unit should become immersed in water. A pressure equalization conduit begins at the spring chamber and leads into the interior of the motor, so that a displacement of the piston for taking up pressure fluid in the storage chamber is effected essentially only by friction of the piston and forces of the spring. A conduit is also provided, by means of which pressure fluid that emerges from the piston pump at the eccentric can be carried away. The invention proposes connecting the spring chamber of the reservoir to the conduit that carries the pressure fluid away. The spring chamber forms a collection container for pressure fluid, as a result of which the collection of the pressure fluid takes place far away from electrical components of the hydraulic unit, and especially of the motor, thus avoiding electrical defects.
摘要翻译：已知用于车辆制动系统的液压单元，其能够限制车轮制动器滑动。为此，液压单元具有至少一个活塞泵，该活塞泵可由电动机驱动，并且在限制车轮制动器滑移时填充储存器。该储存器包括以盲孔的方式实施的气缸，以及将存储室与气缸中的弹簧室分开的活塞，弹簧和封闭元件，其防止水流入气缸，如果液压单位应浸入水中。压力平衡管道在弹簧室处开始并且进入电动机的内部，使得用于吸收存储室中的压力流体的活塞的位移基本上仅通过活塞的摩擦力和弹簧的力来实现。还提供了一种导管，通过该导管可以将偏心柱上从活塞泵排出的压力流体带走。本发明提出将储存器的弹簧室连接到承载压力流体的导管。弹簧室形成用于压力流体的收集容器，由此压力流体的收集远离液压单元，特别是电动机的电气部件，从而避免电气缺陷。

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