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US 2003/0209218 A1Published application
Method for manufacturing a multi-part valve for internal combustion engines
AssigneeDaimlerChrysler AG
InventorsHartmut Baur, Peter Busse, Daniel Bala Wortberg
Life of this patent
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Abstract
For making an interconnection between a valve head and stem, the interconnection between these parts is made by pouring a cast alloy around the stem end. A connection and a valve are also provided.
Claims15
A method for making a connection for a valve head to a valve stem of a multi-part valve comprising the step of:
- pouring a casting intermetallic compound of titanium aluminide around an end of the valve stem, the end being made of steel.
A connection for a valve stem to a valve head of a multi-part valve comprising:
- a cast intermetallic compound of titanium aluminide around an end of the valve stem and having a friction fit or positive fit or integral connection or a combination thereof.
An automotive engine valve comprising:
- a valve stem made of a steel alloy;
- and
- a valve head composed of a Ti/Al intermetallic compound, the valve head including a cast section.
Dependencies are inferred from the claim text.