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.
Patent No.:
Date of Patent:
Mar. 27, 2001
Filed:
Jul. 30, 1999
Robert B. Craft, Ceresco, MI (US);
Daniel A. Monette, Battle Creek, MI (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
A lubrication system for transmissions is provided wherein a lubrication flow path is provided from an oil pump located within a transmission casing to front countershaft bearings. A second flow path provides oil directly to a predetermined number of gear sets located along a main shaft. In one embodiment, oil flows through a first tube from the oil pump to an annular ring located in a groove between a front wall of the transmission main case and a rear face of a clutch housing. The ring is provided with a plurality of apertures along its outer circumference spaced to allow oil to flow directly to front bearings of any counter shaft placed adjacent the main shaft. A closed ended tube connects to the annular ring and extends perpendicularly from the annular ring through the front wall of the transmission main case. The closed ended tube extends substantially parallel to the driven main shaft, and includes spaced apertures that deliver oil directly to a predetermined number of gear sets located axially along the main shaft.