Multipart composite valve for an internal combustion engine

Valves and valve actuation – Valve – Materials

Reexamination Certificate

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C123S188300, C029S888450, C029S888453, C137S375000

Reexamination Certificate

active

07552911

ABSTRACT:
A multipart composite valve for an internal combustion engine, in which a valve shaft (2) and a valve plate (4) are embodied separately while being joined together in an overlapping area (6). The invention is characterized in that at least some parts of the valve shaft (2) are provided with an intermediate layer (8) in the overlapping area (6). Said intermediate layer (8) forms an integral joint with both the valve shaft (2) and the valve plate (4) in the form of a chemical bond, the valve plate (4) being cast onto the valve shaft (2).

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patent: 2003/0209218 (2003-11-01), Baur et al.
patent: 0 296 619 (1988-12-01), None
patent: 8417 (1915-04-01), None

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