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:
Jan. 13, 2004
Filed:
May. 09, 2002
Gregory J. Organek, Whitefish Bay, WI (US);
David M. Preston, Clarkston, MI (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
An improved lubrication system for a ball ramp master clutch and a gear change transmission is disclosed where a lubricant pump is driven by the input shaft to a ball ramp mechanism which, when energized, applies a clamping force on a clutch pack where lubricant is supplied to the pump from a wet sump on the transmission and then lubricant is forced into the clutch assembly and also forced into the gear shaft transmission for eventual return into the sump for recirculation. In an alternate embodiment, a dry sump system is used where the oil flowing out of the transmission is pumped to dry sump where it is then recirculated to the pump.