METHOD FOR PRODUCING A HOLLOW VALVE

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20170348782A1
SERIAL NO

15534965

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method for producing at least one hollow valve for gas exchange may include introducing a bore into a valve shaft and into a valve head to form the at least one hollow valve, measuring a depth of the bore, washing the at least one hollow valve at least once, providing the at least one hollow valve in a retaining device, orienting the retaining device together with the at least one hollow valve with respect to an associated electrode, moving the associated electrode in relation to the at least one hollow valve, inserting the associated electrode into the bore of the at least one hollow valve, enlarging the bore in a region of the valve head by electromechanical machining processes, removing the associated electrode from the at least one hollow valve, rinsing and/or preserving the at least one hollow valve, and measuring a wall thickness of a valve bottom.

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Patent Owner(s)

Patent OwnerAddress
MAHLE INTERNATIONAL GMBH70376 STUTTGART

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kroos, Peter Rutesheim, DE 9 9
Luven, Christoph Stuttgart, DE 12 6

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