Internal-combustion engines – Lubricators – Crankcase – pressure control
Reexamination Certificate
2008-08-08
2011-12-06
Cuff, Michael (Department: 3783)
Internal-combustion engines
Lubricators
Crankcase, pressure control
C123S1960AB, C123S1950HC, C184S106000, C184S006210, C184S006240
Reexamination Certificate
active
08069834
ABSTRACT:
An oil level management system for a vehicle has an oil pan configured to contain oil and to be mountable to an engine block with a baffle extending transverse to the axis of rotation of the engine crankshaft when the oil pan is so mounted. The baffle is configured to partially define a first oil reservoir and a second oil reservoir, as well as an oil flow opening such that the oil reservoirs are in fluid communication with one another and are characterized by respective first and second oil levels within the pan. The second reservoir drains to the first reservoir when the engine is running and when the engine block and crankshaft are positioned on the vehicle with the axis of rotation tilted from horizontal. The first oil level is lower than the second oil level to avoid oil contact with the crankshaft.
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Fulton Kendell
Pannu Manmeet S.
Riedel Paulo A.
Cuff Michael
GM Global Technology Operations LLC
Nguyen Hung Q
Quinn Law Group PLLC
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