Magnetorheological fluid shock absorber

US9217486B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9217486-B2
Application numberUS-201314379173-A
CountryUS
Kind codeB2
Filing dateFeb 18, 2013
Priority dateMar 1, 2012
Publication dateDec 22, 2015
Grant dateDec 22, 2015

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  1. Title

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  2. Abstract

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  5. First independent claim

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A magnetorheological fluid shock absorber includes a piston slidably arranged in a cylinder in which magnetorheological fluid is sealed. The piston includes a piston core which is attached to an end part of a piston rod and on the outer periphery of which a coil is provided, a flux ring which surrounds the outer periphery of the piston core and forms a flow passage for the magnetorheological fluid between the piston core and the flux ring, a first plate which is arranged on the outer periphery of the piston rod and specifies the position of one end of the flux ring in an axial direction with respect to the piston core, a second plate which is arranged on the inner periphery of the other end of the flux ring, and a first snap ring which is fitted to the inner periphery of the flux ring and fixes the second plate.

First claim

Opening claim text (preview).

The invention claimed is: 1. A magnetorheological fluid shock absorber comprising: a cylinder having sealed therein a magnetorheological fluid whose viscosity changes with an action of a magnetic field; a piston slidably arranged in the cylinder, and defining a pair of fluid chambers in the cylinder; and a piston rod coupled to the piston, and extending outside of the cylinder; wherein the piston includes: a piston core attached to an end part of the piston rod, the piston…

Assignees

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Classifications

  • Mechanical Engineering · mapped topic

  • F16F9/535Primary

    Mechanical Engineering · mapped topic

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What does patent US9217486B2 cover?
A magnetorheological fluid shock absorber includes a piston slidably arranged in a cylinder in which magnetorheological fluid is sealed. The piston includes a piston core which is attached to an end part of a piston rod and on the outer periphery of which a coil is provided, a flux ring which surrounds the outer periphery of the piston core and forms a flow passage for the magnetorheological fl…
Who is the assignee on this patent?
Kayaba Industry Co Ltd
What technology area does this patent fall under?
Primary CPC classification F16F9/535. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Dec 22 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).