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Solenoid valves for controlling the brake pressure of wheel brakes and molds for the manufacture of their valve elements

A technology of wheel brakes and braking pressure, applied in the direction of brakes, engine components, electromagnets with armatures, etc., can solve the problems of different magnetic forces, fluctuations, etc., and achieve the effect of uniform flux of force lines and avoiding contact conditions

Active Publication Date: 2021-12-28
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, different component orientations between armature and tappet can lead to fluctuations during pressure adjustment (e.g. in figure 2 as shown in ), because a large number of different situations and thus different magnetic forces can occur between the armature and the tappet

Method used

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  • Solenoid valves for controlling the brake pressure of wheel brakes and molds for the manufacture of their valve elements
  • Solenoid valves for controlling the brake pressure of wheel brakes and molds for the manufacture of their valve elements
  • Solenoid valves for controlling the brake pressure of wheel brakes and molds for the manufacture of their valve elements

Examples

Experimental program
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Effect test

Embodiment Construction

[0044] exist figure 1 A schematic cross-sectional view of a conventional solenoid valve is shown in . Such solenoid valves have already been described as prior art.

[0045] also, figure 2 The causal chain is shown schematically. In this case, possible tolerances in the individual components are shown in the illustration in the upper left corner. Such deviations can lead to tilting or to a tilted position of the armature, for example with respect to the valve seat. This is shown in the upper right corner of the illustration. During use of the valve, rotation of the armature and / or the valve element may also occur. The rotation results in an oblique position of the armature, for example with respect to the valve seat. However, a varying tilted position of the armature results in a varying magnetic force acting on the armature. This is shown in the lower right corner of the illustration. The varying magnetic force acting on the armature in turn leads to different curren...

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Abstract

The invention relates to a solenoid valve (1) for controlling the brake pressure of the wheel brakes of a slip-adjustable hydraulic brake system of a motor vehicle, the solenoid valve having at least partially arranged longitudinally movable Valve element (6) in the valve insert (8) and cooperating with the valve seat (9.1), said valve element being opened along the valve seat (9.1) by means of a spring device (7) in the installed position direction acting force components and can be manipulated in the closing direction with respect to the valve seat (9.1) by means of an electromagnetic actuator (3), wherein the valve element (6) is arranged between the armature (4) and the between the valve seat (9.1) and in operative connection with the armature (4), wherein the solenoid valve (1) is characterized in that the end face of the valve element (6) facing the armature (4) ( 6.4) Having at least one protrusion (6.3), wherein said protrusion (6.3) defines a contact point with said armature (4). Furthermore, the invention relates to a mold for producing said valve element (6).

Description

technical field [0001] The invention relates to a solenoid valve for controlling the brake pressure of the wheel brakes of a slip-adjustable hydraulic brake system of a motor vehicle, the solenoid valve having a valve at least partially arranged in a longitudinally movable manner A valve element in the seat and cooperating with the valve seat, which is loaded by a spring device in the installed position with a force component acting in the opening direction with respect to the valve seat and which can be controlled by means of an electromagnetic actuator The valve seat is actuated in the closing direction, wherein the valve element is arranged between an armature and the valve seat and is in operative connection with the armature, wherein the solenoid valve is characterized in that the valve element The end face facing the armature has at least one projection, wherein the projection defines a contact point with the armature. Background technique [0002] Patent application ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T8/36F16K31/06
CPCB60T8/363F16K31/0665B60T8/36B60T13/686F16K27/00F16K31/0675H01F7/16B60Y2400/81
Inventor M·埃特勒K·兰德斯费德J·诺伯格S·斯泰加斯T·魏茨C·博德曼E·斯泰布
Owner ROBERT BOSCH GMBH
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