Camshaft with curvature
US6935292B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2002 |
| Grant date | Aug 30, 2005 |
| Priority date | — |
| Expiry date | Mar 8, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49293
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Camshaft configurations are increasingly more closely assembled in motor vehicle engines such that access to the cylinder head bolts is obstructed. Indentations 2 along built-up camshafts, which comprise a camshaft tube 1 with slid-on camshaft structural components, such as the cams 3, permit through corresponding rotation free access to the cylinder head bolts even after they are in the installed state. In order to be able to employ for the camshaft structure tubular camshafts 1, according to the invention a pressing tool 10 with bottom dies 12, 13 is provided such that during the pressing operation of the indentations, the camshaft tube 1 advantageously is not deformed beyond the original outer diameter d and the camshaft 1 can be assembled advantageously form-fittingly through subsequent sliding-on of the cams 3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.