System and method for lubricating power transmitting elements
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United States of America Patent
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Nov 20, 2012
Grant Date -
Jan 1, 2009
app pub date -
Aug 11, 2008
filing date -
Dec 22, 2006
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A lubrication system and method are disclosed. The system includes a main engine bearing and a crankshaft in operational association with the bearing. The crankshaft includes an end having a cavity with a power transmitting element (e.g., splines). The cavity can receive and engage a mating mechanism to transmit power thereto. The crankshaft further includes a first oil passage that is disposed within the end and a second oil passage that extends from the main engine bearing into the crankshaft. The first oil passage intersects the second oil passage. The system can also include a pump mechanism for circulating lubricating oil from the main engine bearing to the crankshaft through the second oil passage and the first oil passage, and to the cavity to lubricate the power transmitting element. During engine operation, a constant supply of lubricating oil can be provided to the power transmitting element to reduce component wear.
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