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Valve for Variable Throttling of a Hydraulic Flow with a Fatigue-Resistant Mechanical Means for Reducing Possible Valve Oscillations

A mechanical, hydraulic flow technology, applied in the field of valves with variable throttling of hydraulic flow with anti-fatigue, mechanical devices for reducing possible valve vibration, to achieve the effect of reducing valve vibration and easy installation

Pending Publication Date: 2020-12-22
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Pressure vibrations are thus generated, which propagate in the hydraulic system and can cause noise in the cabin due to the connection of the lines to the body

Method used

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  • Valve for Variable Throttling of a Hydraulic Flow with a Fatigue-Resistant Mechanical Means for Reducing Possible Valve Oscillations
  • Valve for Variable Throttling of a Hydraulic Flow with a Fatigue-Resistant Mechanical Means for Reducing Possible Valve Oscillations
  • Valve for Variable Throttling of a Hydraulic Flow with a Fatigue-Resistant Mechanical Means for Reducing Possible Valve Oscillations

Examples

Experimental program
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Effect test

Embodiment Construction

[0041] figure 1 The valve 1 proposed here, shown in section, is shown schematically in a side view. Valve 1 sets up a variable throttling of the hydraulic flow. The valve comprises a tappet 2 and a guide element 3 in which the tappet 2 is guided for movement in a stroke direction 4 . The valve 1 has at least one fatigue-resistant mechanical (preload) element 5 which locally reduces the radial play 6 of the tappet 2 in order to reduce possible valve vibrations. To this end, mechanical (preload) means 5 are set up to exert a lateral force on the tappet 2 during its stroke movement.

[0042] Here, the mechanical (preloaded) means 5 are, for example, bending springs. Furthermore, the mechanical means 5 are integrated here, for example, into the guide element 3 and formed in one piece with it (for this also refer to the figure 2 icon). For this purpose, the guide element 3 is here, for example, a sleeve which is further embodied, for example, as a spring sleeve on which a pre...

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Abstract

A valve (1) for variable throttling of a hydraulic flow includes a tappet (2) and a guide element (3) in which the tappet (2) is guided for movement in a stroke direction (4). The valve also includesat least one fatigue-resistant, mechanical member (5) that locally reduces a radial play (6) of the tappet (2) so as to reduce possible valve oscillations.

Description

technical field [0001] The invention relates to valves for variable throttling of hydraulic flow. Furthermore, a hydraulic system for a motor vehicle with corresponding valves is specified. In particular, various methods for producing components for such valves are also described. Background technique [0002] Today's ABS / ESP systems offer additional functions such as assisting the driver when maintaining a distance from the vehicle ahead. This is achieved by active intervention of the system by building up pressure on the wheel brake calipers without the driver himself actuating the brake pedal. In order to prevent the driver from hearing disturbing noises, hydraulic damping measures are used which reduce pressure pulsations from the delivery unit of the system. Damping measures include hydraulic resistance and load carrying capacity. For hydraulic dampers to be effective, a large throttling is usually achieved through the resistance. The disadvantage here is that, in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K47/02F01L9/10
CPCF16K47/02F16K15/026F16K15/063F16K17/0433F16K27/0209B60T17/04F16K15/02F01L9/10
Inventor A·莱希勒A·加特C·艾泽勒E·库尔茨F·朔恩J·克洛伊策M·比勒尔M·克罗斯P·舍尔尼格W·斯塔尔
Owner ROBERT BOSCH GMBH