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:
Jul. 19, 1988
Filed:
Feb. 13, 1987
Hermann Pitsch, Wimsheim, DE;
Dr. Ing. h.c.F. Porsche Aktiengesellschaft, Stuttgart, DE;
Abstract
An all-wheel limited slip differential system in the power train of the front axle and the rear axle of a motor vehicle has an intermediate planetary transmission in the direct through drive and a clutching device engageable at its planetary carrier. The planetary transmission includes an inlet ring gear that is torsionally fixed with respect to the drive shaft, and an outlet ring gear having a slightly smaller number of teeth that is disposed coaxial and adjacent to the inlet ring gear and is torsionally fixed with respect to an output shaft. The planetary transmission also has several planetary wheels engaging jointly with both ring gears, the planetary wheels connected to planetary carrier and rotating together with it.