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Shock absorber

一种减震器、保持器的技术，应用在减震器、减振器、弹簧/减震器等方向，能够解决改善乘坐舒适感限制、不能可变地控制阻尼力等问题

Active Publication Date: 2015-06-10
HL MANDO CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the case of high-function dampers (HFD), conventional shock absorbers are effective in high-speed descent characteristics and ultra-low-speed adjustment, but cannot variably control the damping force generated in high-frequency mode and low-frequency mode
Therefore, conventional shock absorbers have limitations in improving ride comfort

Method used

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Examples

Experimental program
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Embodiment Construction

[0021] Hereinafter, a shock absorber according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

[0022] figure 1 is a schematic cross-sectional conceptual diagram illustrating the overall structure of a shock absorber according to an embodiment of the present invention, figure 2 is a cross-sectional conceptual schematic diagram illustrating the flow of a working fluid in a high-frequency mode (small-amplitude mode) during a rebound stroke in a shock absorber according to an embodiment of the present invention, and image 3 is a cross-sectional conceptual schematic diagram illustrating the flow of a working fluid in a low-frequency mode (large-amplitude mode) during a rebound stroke in a shock absorber according to an embodiment of the present invention.

[0023] refer to Figure 1-3 , The shock absorber according to a preferred embodiment of the present invention includes a piston rod 700 , a first piston 100...

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Abstract

In a high-frequency mode (a small-amplitude mode), a shock absorber opens a guide member to reduce a damping force. In a low-frequency mode (a large-amplitude mode), the shock absorber prevents the guide member from being opened by increasing a pressure of a second pressure chamber formed between a second piston (lower piston) and a pilot valve through a groove (passage) formed in an outer periphery of a piston rod. A main damping force is generated through the second pressure chamber and a disk valve assembly. Therefore, it is possible to provide a round ride comfort having a damping feeling and ensure a steering stability through a linear vehicle control.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from Korean Patent Application No. 10-2013-0152412 filed on December 9, 2013, which is hereby incorporated by reference in its entirety. technical field [0003] The present invention relates to a shock absorber, and more particularly, to a shock absorber capable of obtaining pressure-sensitive characteristics by employing a pilot valve and capable of controlling variable frequency characteristics through side passages formed by opening of a guide member Imported from the road surface. Background technique [0004] In general, shock absorbers are designed to support the weight of a vehicle body and suppress and prevent vibrations from being transmitted from the road surface to the vehicle body, helping to improve ride comfort and protect the loaded cargo and various components of the vehicle. [0005] Such a shock absorber includes a cylinder filled with working fluid (oil), a reciproc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/34F16F9/32
CPCF16F9/512F16F9/348F16F9/5126
Inventor 金泰株
Owner HL MANDO CORP
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