Internal-combustion engines – Poppet valve operating mechanism – Lubrication
Reexamination Certificate
2008-05-27
2008-05-27
Eshete, Zelalem (Department: 3748)
Internal-combustion engines
Poppet valve operating mechanism
Lubrication
C123S090330, C123S090380, C123S1960CP
Reexamination Certificate
active
07377246
ABSTRACT:
An improved cam shaft configuration for internal combustion engines is provided wherein the oil is efficiently diverted from the camshaft cap to adjacent camshaft lobes. A reorientation of the camshaft oil diverter improves the distribution and increases the quantity of oil flow without building in additional oil passages to supply oil to cams, that would introduce additional expense without substantially alleviating existing prior art lubrication deficiency problems. The invention obviates the known prior art configurations that suffer from the drawback of insufficient distribution of lubricating oil to adjacent camshaft lobes that is effected by oil diverter configurations.
REFERENCES:
patent: 5325826 (1994-07-01), Cierpial
patent: 5704330 (1998-01-01), Tsuchida
Eshete Zelalem
GenTek Technologies Marketing Inc.
Plantamura Arthur J.
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