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US 2002/0157500 A1Published application
Built-up camshaft
OwnerHerbert Gropp, Dietmar Klose +2inventors
InventorsHerbert Gropp, Dietmar Klose, Claus-Peter Durlich, Manfred Janssen
Life of this patent
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Abstract
A pipe or a solid rod (1) is coated on the outer surface, or cams (3) and/or other parts are coated on their inner surface with a suitable coating (2), for example a joint-stable conversion coating, in order to produce a cost-advantageous mass product with commercially available materials and semifinished materials by a longitudinal pressing on of cams and other parts onto the pipe or solid rod.
Claims5
A built-up camshaft comprising
- a pipe or a solid rod,
- cams,
- bearing rings,
- end pieces, and
- other parts, wherein the cams (3), the end pieces (6), the bearing rings, and the other parts are connected by means of longitudinal compression joints to the pipe or to the solid rod, wherein the parts to be connected are provided with a suitable surface coating, and wherein the surface coating prevents a tribocorrosion and increases the load capacity as compared to conventional compression joints.
2 more elements
Dependencies are inferred from the claim text.