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Frequency dependent damper

A damper, working chamber technology, applied in the direction of shock absorbers, shock absorbers, springs/shock absorbers, etc.

Active Publication Date: 2019-07-05
TENNECO AUTOMOTIVE OPERATING CO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While semi-active damping shock absorbers exist that vary the damping of the shock absorber in real time to address these vehicle inputs, there is a need for passive shock absorbers that can operate to provide frequency dependent damping without complex (active) controls

Method used

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  • Frequency dependent damper
  • Frequency dependent damper
  • Frequency dependent damper

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Embodiment Construction

[0025] The following description is merely exemplary in nature and is not intended to limit the disclosure, application or uses.

[0026] Several exemplary embodiments are provided so that this disclosure will be thorough, and will fully convey the scope to those who are skilled in the art. Numerous specific details are set forth, such as examples of specific components, devices and methods, to provide a thorough understanding of embodiments of the present disclosure. It should be apparent to those skilled in the art that specific details need not be employed, that example embodiments may be embodied in many different forms and that neither should be construed to limit the scope of the disclosure. In some example embodiments, well-known processes, well-known device structures, and well-known technologies are not described in detail.

[0027] The terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. ...

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PUM

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Abstract

A damper system for a vehicle includes a piston slidably fitted in a cylinder that separates the cylinder into a first working chamber and a second working chamber. A piston rod is connected to the piston and extends outside of the cylinder. A disc valve assembly is mounted to the piston and controls fluid flow between the first working chamber and the second working chamber. An actuator is coupled to the piston rod and includes a moveable sleeve as well as an accumulation chamber fluidly connected to one of the first working chamber and the second working chamber. The accumulation chamber includes a flexible wall. An increased pressure within the accumulation chamber creates a force on flexible wall to increase a volume of the accumulation chamber and a force on the moveable sleeve whichacts on the disc valve assembly to increase resistance to opening the disc valve assembly.

Description

technical field [0001] This disclosure relates to automotive shock absorbers. More specifically, the present disclosure relates to the internal structure of a passive shock absorber operable to provide different magnitudes of damping based on the frequency and velocity of the shock absorber's input. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not constitute prior art. [0003] Shock absorbers are often used in conjunction with automotive or other suspension systems in order to absorb unwanted vibrations generated during movement of the suspension system. To absorb these unwanted vibrations, automotive shock absorbers are usually connected between the sprung mass (body) and the unsprung mass (suspension / undercarriage) of the vehicle. [0004] The most common types of shock absorbers for automobiles can be single-tube or double-tube shock absorbers. In a single-tube design, the ...

Claims

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Application Information

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IPC IPC(8): F16F9/348F16F9/512
CPCF16F9/3482F16F9/512
Inventor 科恩拉德·雷布鲁克普拉尚特·帕特尔贾斯廷·亨德里克斯苏哈斯·帕蒂尔
Owner TENNECO AUTOMOTIVE OPERATING CO INC