Lubrication oil supply for crankshaft

Details Lubrication oil supply for crankshaft Lubrication oil supply for crankshaft

2006-12-26

2006-12-26

Argenbright, Tony M. (Department: 3747)

Internal-combustion engines

Lubricators

Crankcase, pressure control

C184S006500, C123S090330

Reexamination Certificate

active

07152569

ABSTRACT:
An engine crankshaft includes a split crankshaft journal that includes offset connecting rod journals for two connecting rods. Oil supply systems disposed on opposite axial sides of the crankshaft journal each lubricate a corresponding one of the connecting rod journals. The oil supply systems are either axial or peripheral oil supply systems that do not require oil to be supplied to the crankshaft through the main crankcase bearings. Consequently, the oil supply systems sufficiently lubricate each connecting rod journal without requiring weakening holes or grooves in the main crankcase bearings.

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European Search Report, European Patent Application:EP04015315, Date of Publication:May 1, 2005.

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