Vibration damping insulator for fuel injection valve

US8978624B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8978624-B2
Application numberUS-201013700208-A
CountryUS
Kind codeB2
Filing dateJul 30, 2010
Priority dateJul 30, 2010
Publication dateMar 17, 2015
Grant dateMar 17, 2015

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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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Abstract

Official abstract text for this publication.

A fuel injection valve is mounted in a cylinder head by being inserted in an insertion hole provided in the cylinder head. A shoulder section is provided at the inlet portion of the insertion hole to be expanded in an annular shape. The fuel injection valve is provided with a stepped section expanded in diameter in a tapered manner to have a tapered surface facing the shoulder section. A vibration insulator is disposed between the stepped section and the shoulder section. The vibration insulator is provided with a circular annular tolerance ring making contact with the tapered surface of the fuel injection valve. A circular annular sleeve section coaxial with the tolerance ring is integrally formed on the tolerance ring to extend from the surface of a portion of the tolerance ring, the portion not facing the tapered surface of the fuel injection valve.

First claim

Opening claim text (preview).

The invention claimed is: 1. A vibration insulator for a fuel injection valve, the vibration insulator damping vibration that occurs to the fuel injection valve, wherein the fuel injection valve is mounted on a cylinder head while being inserted into an insertion hole provided in the cylinder head, a shoulder section is annularly formed at an inlet portion of the insertion hole in a widening manner, the fuel injection valve includes a stepped section, a diameter of which is enla…

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What does patent US8978624B2 cover?
A fuel injection valve is mounted in a cylinder head by being inserted in an insertion hole provided in the cylinder head. A shoulder section is provided at the inlet portion of the insertion hole to be expanded in an annular shape. The fuel injection valve is provided with a stepped section expanded in diameter in a tapered manner to have a tapered surface facing the shoulder section. A vibrat…
Who is the assignee on this patent?
Kamada Akira, Sugiyama Natsuki, Sumida Tomokazu, and 3 more
What technology area does this patent fall under?
Primary CPC classification F02M61/14. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Mar 17 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).