Internal-combustion engines – Poppet valve operating mechanism – Overhead camshaft
Reexamination Certificate
2005-08-30
2005-08-30
Denion, Thomas (Department: 3748)
Internal-combustion engines
Poppet valve operating mechanism
Overhead camshaft
C123S090310, C123S090600, C029S888100
Reexamination Certificate
active
06935292
ABSTRACT:
Camshaft configurations are increasingly more closely assembled in motor vehicle engines such that access to the cylinder head bolts is obstructed. Indentations2along built-up camshafts, which comprise a camshaft tube1with slid-on camshaft structural components, such as the cams3, permit through corresponding rotation free access to the cylinder head bolts even after they are in the installed state. In order to be able to employ for the camshaft structure tubular camshafts1, according to the invention a pressing tool10with bottom dies12, 13is provided such that during the pressing operation of the indentations, the camshaft tube1advantageously is not deformed beyond the original outer diameter d and the camshaft1can be assembled advantageously form-fittingly through subsequent sliding-on of the cams3.
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Muster Manfred
Schreiber Walter
Spiegel Walter
Wiesner Peter
Chang Ching
Denion Thomas
Notaro $ Michalos PC
Thyssenkrupp Presta AG
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