The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 12, 2007

Filed:

Nov. 24, 2004
Applicant:

Earl James Irwin, Ft. Wayne, IN (US);

Inventor:

Earl James Irwin, Ft. Wayne, IN (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H 57/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

A lubrication system of an axle assembly comprising a differential carrier rotatably supporting a differential case therewithin, an axle tube extending outwardly from the differential carrier, a bearing assembly for rotatably supporting the differential case within the differential carrier, and an annular drain-back baffle formed with a drain-back hole passing through the drain-back baffle and defining an oil delivery passage between the differential carrier and the axle tube. The drain-back baffle is selectively positioned within the axle assembly to provide changeable oil flow characteristics of the axle assembly. A method is provided for controlling flow of lubricant between a differential gear and an axle tube by selectively adjusting the position of the drain-back channel in order to provide the desired lubricant flow path.


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