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Valve arrangement and method for controlling pilot pressure in a valve arrangement

A technology of pilot pressure and control valve, applied in the direction of shock absorber, spring/shock absorber design features, shock absorber, etc., can solve problems such as unsuitable damping characteristics

Active Publication Date: 2021-12-31
OHLINS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these bypass flows generally provide damping forces that are less suited to the desired damping characteristics than active damping

Method used

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  • Valve arrangement and method for controlling pilot pressure in a valve arrangement
  • Valve arrangement and method for controlling pilot pressure in a valve arrangement
  • Valve arrangement and method for controlling pilot pressure in a valve arrangement

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Embodiment Construction

[0037]The invention will now be described more fully hereinafter with reference to the accompanying drawings, in which presently preferred embodiments of the invention are shown. However, this invention may be embodied in many different forms and should not be construed as limited to these embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness, and will fully convey to the recipients of the art scope of the invention. Throughout this application, like reference numerals refer to like elements.

[0038] The first picture (ie figure 1 ) shows a cross-sectional exploded view of the valve arrangement. This figure is provided to help the reader understand the different components in the subsequent figures, which show more functions and flow paths. The valve arrangement 1 comprises a valve housing 2 . The valve housing has an upper part at the top of the figure and a lower part at the bottom of the figure, the two parts are separat...

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PUM

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Abstract

A valve arrangement (1) and a method for controlling a pilot pressure in a valve arrangement (1) of a shock absorber, wherein the valve arrangement comprises a control valve member movable in an axial direction relative to a main valve member (5). A pilot chamber (3) in fluid communication with the first port (7) and / or the second port (8). The arrangement and method include pressure releasing (AM S1 ) the control valve member (5) and applying an actuation force (AM S2 ) for controlling the pilot pressure (Pp) during an active control mode. Further, during fail-safe control mode, by this pilot pressure (P P ) controls (FM S1) the control valve member (5). Finally, during both the active control mode and the fail-safe control mode, through at least one common valve seat (R 2 ) restricts (S3) the pilot fluid flow (PF C , PF R ).

Description

technical field [0001] The present invention generally relates to the field of valve arrangements. In particular, the invention relates to a valve arrangement for controlling the flow of a damping medium in a shock absorber. Background technique [0002] Typically, in the technical field of shock absorbers including pilot valves, a pressure regulator (i.e. a valve arrangement) is used to control the damping between the compression chamber and the rebound chamber during the reciprocating movement of the piston in the damping medium filled chamber of the shock absorber medium flow. The piston is connected to the wheel or chassis via the piston rod, and the chamber is connected to the wheel or chassis, whichever is not connected to the piston. During the compression stroke, the piston moves axially in the direction towards the compression chamber, thereby pressurizing the damping medium in the compression chamber. During the rebound stroke, the piston moves axially towards t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F9/46
CPCF16F9/465F16F2230/24F16F9/34F16F9/464
Inventor 哈坎·马姆博格弗雷德里克·拉尔森比约恩·斯特哈尔内
Owner OHLINS
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