Patent US5551782A successfully refreshed from Google Patents.
US5551782A
Expired / Lapsed
US
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Component having at least one split bearing seat and method of producing same
Assignee: Sintermetallwerk Krebsoege GmbH
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Filing: 1994-01-26
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Granted: 1996-09-03
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Expires: 2014-01-26
Abstract
Abstract A component made from a preform made of a first material and having a bearing seat defining a bearing seat surface, and a method of producing the component. The component includes a bearing cap portion, and a remainder portion split from the bearing cap portion and adapted to mate therewith. The method comprises the step of coating the bearing seat surface of the preform with a second material different from the first material for providing a bearing layer made of the second material on the bearing seat surface, the bearing layer having a running face. The step of coating includes the step of thermal spraying the second material on the bearing seat surface. The preform is separated into the bearing cap portion and the remainder portion. The bearing layer is split by fracture separation at a separation region of the bearing layer into a bearing cap bearing layer portion corresponding to the bearing cap portion, and a remainder bearing layer portion corresponding to the remainder portion.
Inventors
- 👤 Volker Arnhold
- 👤 Uwe Eilrich
- 👤 Harald Neubert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 11:19
CPC Classifications
B; B22; B22F; B22F5/00; B22F5/003; F; F16; F16C; F16C9/00; F16C9/04; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/14; F16C9/045; B22F2998/00; F05; F05C; F05C2201/00; F05C2201/02; F05C2201/021; F16C2204/00; F16C2204/10; F16C2204/16; F16C2204/20; F16C2204/22; F16C2220/00; F16C2220/02; F16C2220/20; F16C2220/40; F16C2220/46; F16C2223/00; F16C2223/30; F16C2223/42; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49229; Y10T29/49288; Y10T29/49789; Y10T29/4979
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
160 words
A method of producing a component from a preform made of a first material and having a bearing seat defining a bearing seat surface, the component including a remainder portion, and a bearing cap portion split from the remainder portion and adapted to mate therewith, the method comprising the steps of: coating the bearing seat surface of the preform with a second material different from the first material for providing a bearing layer made of the second material on the bearing seat surface, the bearing layer having a running face, the step of coating including the step of thermal spraying the second material on the bearing seat surface; separating the preform into the bearing cap portion and the remainder portion; and splitting the bearing layer by fracture separation at a separation region of the bearing layer into a bearing cap bearing layer portion corresponding to the bearing cap portion, and a remainder bearing layer portion corresponding to the remainder portion.
Claim 2
Independent Claim
160 words
A method of producing a component from a preform made of a first material and having a bearing seat defining a bearing seat surface, the component including a remainder portion, and a bearing cap portion split from the remainder portion and adapted to mate therewith, the method comprising the steps of: coating the bearing seat surface of the preform with a second material different from the first material for providing a bearing layer made of the second material on the bearing seat surface, the bearing layer having a running face, the step of coating including the step of thermal spraying the second material on the bearing seat surface; separating the preform into the bearing cap portion and the remainder portion; and splitting the bearing layer by fracture separation at a separation region of the bearing layer into a bearing cap bearing layer portion corresponding to the bearing cap portion, and a remainder bearing layer portion corresponding to the remainder portion.
Claim 3
Dependent Claim
32 words
The method according to claim 1, wherein the step of thermal spraying includes the step of applying the second material to the bearing seat surface by flame spraying of the second material.
Claim 4
Dependent Claim
34 words
The method according to claim 1, wherein the step of thermal spraying includes the step of applying the second material to the bearing seat surface by high speed flame spraying of the second material.
Claim 5
Dependent Claim
32 words
The method according to claim 1, wherein the step of thermal spraying includes the step of applying the second material to the bearing seat surface by plasma spraying of the second material.
Claim 6
Dependent Claim
28 words
The method according to claim 1, wherein the step of separating includes the step of splitting the preform by fracture separation at a separation region of the preform.
Claim 7
Dependent Claim
24 words
The method according to claim 5, wherein the step of splitting the bearing layer is performed simultaneously with the step of splitting the preform.
Claim 8
Dependent Claim
31 words
The method according to claim 5, further comprising the step of providing a fracture initiating notch at the separation region of the preform prior to the step of splitting the preform.
Claim 9
Dependent Claim
30 words
The method according to claim 5, further comprising the step of embrittling the separation region of the preform by targeted thermal treatment prior to the step of splitting the preform.
Claim 10
Dependent Claim
26 words
The method according to claim 5, further comprising the step of cooling the separation region of the preform prior to the step of splitting the preform.
Claim 11
Dependent Claim
31 words
The method according to claim 1, further comprising the step embrittling the separation region of the bearing layer by targeted thermal treatment prior to the step of splitting the bearing layer.
Claim 12
Dependent Claim
28 words
The method according to claim 1, further comprising the step of cooling the separation region of the bearing layer prior to the step of splitting the bearing layer.
Claim 13
Dependent Claim
54 words
The method according to claim 1, further comprising the steps of: matably joining the bearing cap portion and the remainder portion after the step of separating and the step of splitting; and finishing the running face of the bearing layer after the step of matably joining, the-step of finishing comprising the step of cutting.
Claim 14
Dependent Claim
20 words
The method according to claim 1, further comprising the step of making the preform by one of sintering and sinter-forging.
Claim 15
Dependent Claim
28 words
The method according to claim 1, wherein the step of coating includes the step of thermal spraying a material containing copper and lead on the bearing seat surface.
Claim 16
Dependent Claim
24 words
The method according to claim 1, further including the step of making a connecting rod having a split connecting rod head as the component.
Claim 17
Dependent Claim
85 words
A component comprising: a bearing cap; a remainder portion separated from the bearing cap and adapted to be joined with the bearing cap for forming a split bearing seat therewith defining a bearing seat surface and a first fracture separation region, the bearing cap and the remainder portion being made of a first material; and a bearing layer made of a second material different from the first material, the bearing layer being disposed on the bearing seat surface and defining a second fracture separation region.
Claim 18
Dependent Claim
85 words
A component comprising: a bearing cap; a remainder portion separated from the bearing cap and adapted to be joined with the bearing cap for forming a split bearing seat therewith defining a bearing seat surface and a first fracture separation region, the bearing cap and the remainder portion being made of a first material; and a bearing layer made of a second material different from the first material, the bearing layer being disposed on the bearing seat surface and defining a second fracture separation region.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-09-03 | 2000-03-04 | 2000-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-09-03 | 2004-03-04 | 2004-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-09-03 | 2008-03-04 | 2008-09-03 | $7700.00 | Window Closed / Lapsed |