Valves and valve actuation – Valve – Materials
Reexamination Certificate
2004-08-16
2009-06-30
Rivell, John (Department: 3753)
Valves and valve actuation
Valve
Materials
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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Schlegl Martin
Stark Holger
Baskin Jeremy S
Daimler AG
Patent Central LLC
Pendorf Stephen A.
Rivell John
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