Machine element or mechanism – Elements – Gear casings
Reexamination Certificate
2007-02-20
2007-02-20
Pang, Roger (Department: 3681)
Machine element or mechanism
Elements
Gear casings
C184S011100
Reexamination Certificate
active
10948603
ABSTRACT:
An improved lubrication system for drive axle assemblies is provided that uses a collector in connection with a filter plug to lower the dynamic lubricant level in the drive axle assembly and filter contaminants in the lubricant sump. The collector is affixed to a cover plate attached to the drive axle housing and defines a well and a flow passage proximate the bottom of the well. The flow passage is aligned with an opening through which lubricant is inserted into the housing. A plug with a filter is inserted through the opening in the cover plate and into the flow passage. The invention reduces churning losses by lowering the dynamic lubricant level in the axle assembly without having a negative impact on lubricant life.
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Turner Gary A.
Wenstrup Leo
Dana Corporation
Dykema Gossett PLLC
Holmes Justin K.
Pang Roger
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