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Three arm finger follower with cam switching profile and compression lost motion springs
US8955481B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8955481-B2 |
| Application number | US-201313783532-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 4, 2013 |
| Priority date | Mar 16, 2012 |
| Publication date | Feb 17, 2015 |
| Grant date | Feb 17, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
A switchable roller finger follower is provided having an inner lever and two separate outer arms mounted at one end to a swing pivot axle that extends through the inner lever. A roller is mounted in the inner lever. The outer arms extend longitudinally along sides of the inner lever and include high lift cam contact surfaces. The inner lever includes a compression spring support extending out from each of the sides. The outer arms each include a corresponding spring support facing the respective spring support of the inner lever. A compression spring is located on each of the sides of the inner lever between the corresponding spring supports. A coupling arrangement is located between the inner lever and the outer arms which in a locked position, locks the outer arms in position on the inner lever, and in an unlocked position, allows the outer arms to pivot.
First claim
Opening claim text (preview).
What is claimed is: 1. A switchable roller finger follower having a high lift and a low lift mode for a valve train of an internal combustion engine, comprising: an inner lever having a slot in which a roller is mounted by a transverse axle; two separate outer arms that extend along longitudinal sides of the inner lever that are mounted for pivoting movement at one end of the inner lever by a swing pivot axle, the two separate outer arms each include a high lift cam contact surf…
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Cross-Sectional Technologies · mapped topic
Cross-Sectional Technologies · mapped topic
Mechanical Engineering · mapped topic
- F01L1/181Primary
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
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Frequently asked questions
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- What does patent US8955481B2 cover?
- A switchable roller finger follower is provided having an inner lever and two separate outer arms mounted at one end to a swing pivot axle that extends through the inner lever. A roller is mounted in the inner lever. The outer arms extend longitudinally along sides of the inner lever and include high lift cam contact surfaces. The inner lever includes a compression spring support extending out …
- Who is the assignee on this patent?
- Schaeffler Technologies Ag, Schaeffler Technologies Gmbh
- What technology area does this patent fall under?
- Primary CPC classification F01L1/181. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Feb 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).