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:
Feb. 14, 1995
Filed:
Mar. 24, 1993
Lennart S Carlson, Rochester, NY (US);
Zexel-Gleason USA, Inc., Rochester, NY (US);
Abstract
The preferred embodiments of the invention disclose an automotive torque-proportioning differential of the parallel-axis type having two planetary sets of either three or four combination gears in mesh with sun/side gears that receive respective vehicle axle ends. Each respective combination gear in each set is in meshing engagement with both (a) a respective one of the differential's two sun gears and (b) at least one other combination gear of its set. As compared with the planetary gearing of conventional differentials of similar size and torque-proportioning characteristics, the widely-separated sets of planetary gears occupy remarkably less interior space in the housing, permitting (i) the use of unconventionally large housing windows that significantly reduce the weight of the differential and greatly facilitate lubrication of the differential's gearing, and/or (ii) accommodation of C-clip assembly for the axle ends without increasing the exterior dimensions of the differential. In one embodiment, the center combination gear of each planetary set is designed with a larger diameter than the respective diameters of the two outer combination gears of the set.