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Cylinder liner having roll-burnished recess
US9784208B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9784208-B2 |
| Application number | US-201414315247-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 25, 2014 |
| Priority date | Jun 25, 2014 |
| Publication date | Oct 10, 2017 |
| Grant date | Oct 10, 2017 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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Abstract
Official abstract text for this publication.
A cylinder liner is disclosed. The cylinder liner may include a hollow generally cylindrical body extending from a top end to a bottom end along a longitudinal axis, and an annular flange extending radially outwardly from the top end of the body. The cylinder liner may also include an annular recess adjacent the flange at a side closest to the bottom end of the body. The recess may have first and second axial ends, a substantially straight portion extending between the first and second axial ends, and at least one fillet formed at an intersection between the straight portion and at least one of the first and second axial ends. A roll-burnishing operation may be performed on the straight portion and the at least one fillet in a direction along the longitudinal axis.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of making a cylinder liner, comprising: fabricating a hollow generally cylindrical body that extends from a top end to a bottom end along a longitudinal axis, the cylindrical body including an annular flange extending radially outwardly from the top end of the body and an annular recess adjacent the flange at a side closest to the bottom end of the cylindrical body; and inducing compressive residual stresses on the annular recess by performing a roll-burnishing operation in a direction along the longitudinal axis on the annular recess, wherein performing the roll-burnishing operation in the direction along the longitudinal axis on the annular recess includes performing the roll-burnishing operation in the direction along a surface of a straight portion of the annular recess parallel to the longitudinal axis. 2. The method of claim 1 , wherein performing the roll-burnishing operation in the direction along the longitudinal axis on the annular recess includes performing the roll-burnishing operation in the direction along the longitudinal axis on at least one fillet located at an axial end of the straight portion. 3. The method of claim 2 , wherein performing the roll-burnishing operation in the direction along the longitudinal axis on the at least one fillet includes performing the roll-burnishing operation in the direction along the longitudinal axis on two fillets at opposing axial ends of the straight portion. 4. The method of claim 3 , wherein performing the roll-burnishing operation in the direction along the longitudinal axis on two fillets includes performing the roll-burnishing operation to form the two fillets with substantially the same radius of curvature. 5. The method of claim 2 , wherein performing the roll-burnishing operation along the longitudinal axis includes rolling the at least one fillet and the straight portion in a single stroke in the direction along the longitudinal axis.
Assignees
Inventors
Classifications
by burnishing or the like · CPC title
- F02F1/004Primary
Cylinder liners (F02F1/08, F02F1/16 take precedence) · CPC title
Stress problems, especially related to thermal stress · CPC title
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Frequently asked questions
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- What does patent US9784208B2 cover?
- A cylinder liner is disclosed. The cylinder liner may include a hollow generally cylindrical body extending from a top end to a bottom end along a longitudinal axis, and an annular flange extending radially outwardly from the top end of the body. The cylinder liner may also include an annular recess adjacent the flange at a side closest to the bottom end of the body. The recess may have first a…
- Who is the assignee on this patent?
- Caterpillar Inc
- What technology area does this patent fall under?
- Primary CPC classification F02F1/004. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Oct 10 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).