Internal-combustion engines – Poppet valve operating mechanism – Cam
Reexamination Certificate
2006-04-25
2006-04-25
Denion, Thomas (Department: 3748)
Internal-combustion engines
Poppet valve operating mechanism
Cam
C123S090340, C123S090270
Reexamination Certificate
active
07032554
ABSTRACT:
The present invention provides a thrust cam cap for an engine camshaft disclosed to effectively place a thrust cam cap to limit the longitudinal movement of an engine camshaft according to the location of a thrust bearing cap that limits the longitudinal movement of the crankshaft, thereby maintaining a smooth operation of a timing belt or a timing chain in spite of thermal expansion of the crankshaft and the camshaft while an engine is in operation.
REFERENCES:
patent: 4777842 (1988-10-01), Yamada
patent: 4957079 (1990-09-01), Nakatani et al.
patent: 5127380 (1992-07-01), Morishita
patent: 5465694 (1995-11-01), Agarrat
Denion Thomas
Eshete Zelalem
Hyundai Motor Company
Morgan & Lewis & Bockius, LLP
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