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Frequency sensitive type shock absorber

A shock absorber, frequency-sensitive technology, applied in the direction of shock absorbers, springs/shock absorbers, shock absorbers, etc., can solve the problems of difficult riding comfort adjustment stability, etc., to improve riding comfort and prevent performance Deterioration, the effect of satisfying the adjustment stability

Active Publication Date: 2020-12-15
HL MANDO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the conventional shock absorber has a structure in which the damping force changes according to the speed change of the piston regardless of the frequency or the stroke
As described above, since the damping force that changes only according to the speed change of the piston produces the same damping force in various road conditions, it is difficult to satisfy both ride comfort and adjustment stability

Method used

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  • Frequency sensitive type shock absorber
  • Frequency sensitive type shock absorber
  • Frequency sensitive type shock absorber

Examples

Experimental program
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Embodiment Construction

[0049]Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. The following examples are provided to fully convey the spirit of the present disclosure to those of ordinary skill in the art to which the present disclosure pertains. The present disclosure is not limited to the embodiments shown herein, but may be implemented in other forms. The drawings are not intended to limit the scope of the disclosure in any way, and the dimensions of components may be exaggerated for clarity of illustration. Like reference numerals refer to like elements throughout the specification.

[0050] figure 1 is a sectional view showing the frequency-sensitive shock absorber according to the first embodiment of the present disclosure, and figure 2 is an exploded perspective view showing the valve assembly provided in the frequency-sensitive shock absorber according to the first embodiment of the present disclosure.

[0051] r...

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PUM

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Abstract

Disclosed is a frequency sensitive type shock absorber including a piston rod reciprocating an inside of a cylinder and having a connection passage therein; a piston valve mounted on the piston rod and having a plurality of compression and rebound flow paths penetrating up and down thereof, and partitioning the cylinder into compression and rebound chambers; and a valve assembly mounted on the piston rod to generate a damping force that changes with frequency during a rebound stroke; wherein the valve assembly comprises a housing coupled to the piston rod and having a pilot chamber in communication with the connection passage; a main retainer coupled to the piston rod and having a main chamber formed on an upper portion thereof in communication with the connection passage; a first pilot valve coupled to the piston rod and disposed between the housing and the main retainer to partition the pilot chamber and the main chamber; and a second pilot valve coupled to the piston rod and disposed above the pilot chamber and configure to be elastically deformable depending on a change in pressure of the pilot chamber.

Description

[0001] Cross References to Related Applications [0002] This application is based on and claims priority from Korean Patent Application No. 10-2019-0069359 filed with the Korean Intellectual Property Office on June 12, 2019, which is hereby incorporated by reference in its entirety. technical field [0003] The present disclosure relates to a frequency-sensitive shock absorber, and more particularly, to satisfying both ride comfort and adjustment stability by controlling high-frequency damping force and low-frequency damping force during compression stroke and rebound stroke of a piston valve, respectively. Sexual frequency-sensitive shock absorbers. Background technique [0004] Generally, a vehicle is equipped with a damper device to improve riding comfort by absorbing shock or vibration received from a road surface while running, and a shock absorber is used as one of the damper devices. [0005] The shock absorbers operate with vehicle vibrations that depend on road co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/19F16F9/34F16F9/32
CPCF16F9/19F16F9/3488F16F9/3221F16F2228/04F16F9/3482F16F9/512B60G2202/24B60G13/08B60G2500/11B60G2206/41F16F9/348F16F9/5126F16F9/504B60G17/08B60G2800/162F16F2222/12F16F2228/066
Inventor 金奎道姜栋元金南昊朴贤洙
Owner HL MANDO CORP