Valve for injecting fuel

US9771908B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9771908-B2
Application numberUS-201113996864-A
CountryUS
Kind codeB2
Filing dateNov 7, 2011
Priority dateDec 23, 2010
Publication dateSep 26, 2017
Grant dateSep 26, 2017

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A valve for injecting fuel, including a valve positioning element, an armature connected to the valve positioning element, a stop that limits a movement of the armature, and a damping element provided between the armature and the stop, the damping element being applied as a damping layer on at least one part of the armature and/or on at least one part of the stop.

First claim

Opening claim text (preview).

What is claimed is: 1. A valve for injecting fuel, comprising: a valve positioning element; a pot-shaped armature connected to the valve positioning element, the pot-shaped armature having a base surface and a circumferential edge, wherein the circumferential edge is orthogonal to the base surface and is situated on an outermost circumference of the pot-shaped armature; a stop that limits a movement of the pot-shaped armature; and a damping element situated between the pot-shaped armature and the stop, wherein the damping element is applied as a damping layer at least one of: i) on at least one part of the pot-shaped armature and, ii) on at least one part of the stop, and wherein the damping element is applied to the base surface and an orthogonal surface of the circumferential edge of the pot-shaped armature. 2. The valve as recited in claim 1 , wherein the pot-shaped armature includes an armature body made of a soft magnetic material. 3. The valve as recited in claim 1 , wherein the damping layer has a thickness of 20 μm. 4. The valve as recited in claim 1 , wherein the pot-shaped armature has a through-flow opening for a passage of fuel. 5. The valve as recited in claim 1 , wherein the damping layer is applied on at least one part of the pot-shaped armature. 6. The valve as recited in claim 1 , wherein the damping layer is applied on at least one part of the stop. 7. The valve as recited in claim 1 , wherein the damping layer is applied on at least one part of the pot-shaped armature and on at least one part of the stop.

Assignees

Inventors

Classifications

  • using mechanical means · CPC title

  • Fuel-injection apparatus having means for reducing noise · CPC title

  • using electromagnetic operating means · CPC title

  • F02M51/061Primary

    using electromagnetic operating means · CPC title

Patent family

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Frequently asked questions

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What does patent US9771908B2 cover?
A valve for injecting fuel, including a valve positioning element, an armature connected to the valve positioning element, a stop that limits a movement of the armature, and a damping element provided between the armature and the stop, the damping element being applied as a damping layer on at least one part of the armature and/or on at least one part of the stop.
Who is the assignee on this patent?
Pilgram Guido, Bosch Gmbh Robert
What technology area does this patent fall under?
Primary CPC classification F02M51/061. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Sep 26 2017 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).