Mount for subframe and magnetorheological elastomer unit
US-10844923-B2 · Nov 24, 2020 · US
Suspension arm bushing
US11628699B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11628699-B2 |
| Application number | US-202117556114-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 20, 2021 |
| Priority date | Dec 22, 2020 |
| Publication date | Apr 18, 2023 |
| Grant date | Apr 18, 2023 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A suspension arm bushing provided in a vehicle includes coils. First magnetic viscoelastic elastomers are arranged at both ends in an axial direction of a housing, respectively, to sandwich the coils. A second magnetic viscoelastic elastomer is arranged in the housing so as to be sandwiched between the coils. A controller selectively switches directions of magnetic fields generated by the coils between the same direction and opposite directions.
First claim
Opening claim text (preview).
What is claimed is: 1. A suspension arm bushing provided in a vehicle, comprising: a housing which includes an inner cylindrical part having a hollow axial region and made of a magnetic material, and an outer cylindrical part arranged coaxially with the inner cylindrical part on a radially outer side of the inner cylindrical part and made of a magnetic material; a magnetic viscoelastic elastomer arranged in the housing; and coils arranged in the housing and applying magnetic fields to change viscoelasticity of the magnetic viscoelastic elastomer, wherein the coils include at least two coils, the magnetic viscoelastic elastomer includes first magnetic viscoelastic elastomers arranged at both ends in an axial direction of the housing, respectively, so as to entirely sandwich the coils, and a controller is provided to selectively switch directions of the magnetic fields generated by the coils between a same direction and opposite directions through the first magnetic viscoelastic elastomers. 2. The suspension arm bushing as claimed in claim 1 , wherein the magnetic viscoelastic elastomer further includes a second magnetic viscoelastic elastomer arranged in the housing so as to be sandwiched between the coils. 3. The suspension arm bushing as claimed in claim 2 , wherein magnetic particles of the second magnetic viscoelastic elastomer are arranged orthogonal to the axial direction of the housing. 4. The suspension arm bushing as claimed in claim 1 , wherein magnetic particles of the first magnetic viscoelastic elastomer are arranged parallel to the axial direction of the housing. 5. The suspension arm bushing as claimed in claim 1 arranged in a suspension arm.
Assignees
Inventors
Classifications
- F16F1/3835Primary
characterised by the sleeve of elastic material, e.g. having indentations or made of materials of different hardness (F16F1/3807, F16F1/387 take precedence) · CPC title
comprising means for modifying the rigidity in particular directions {(spherical or conical sleeves F16F1/393)} · CPC title
comprising magneto-rheological elastomers [MR], (magneto-rheological fluid dampers F16F9/535) · CPC title
Elastic mounts, e.g. bushings · CPC title
Control arrangements · CPC title
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Frequently asked questions
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- What does patent US11628699B2 cover?
- A suspension arm bushing provided in a vehicle includes coils. First magnetic viscoelastic elastomers are arranged at both ends in an axial direction of a housing, respectively, to sandwich the coils. A second magnetic viscoelastic elastomer is arranged in the housing so as to be sandwiched between the coils. A controller selectively switches directions of magnetic fields generated by the coils…
- Who is the assignee on this patent?
- Honda Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification F16F1/3835. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Apr 18 2023 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 7 related publications on this page (citations in our corpus or others sharing the same primary CPC).