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. 06, 2001
Filed:
Nov. 10, 1999
Matthias Schmitz, Köln, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
A multiple-speed transmission for motor vehicles has a main transmission and a planetary design range change group rear-mounted thereon. The multiple-speed transmission has a synchronizer assembly situated upon an output shaft of the main transmission which is, at the same time, the input shaft of the range change group. The synchronizer assembly is locked either against a rotation relative to a sun gear to create a reduction ratio between the input shaft to the planetary transmission and the output shaft of the planetary transmission or against a rotation relative to the planet carrier, and thus to the output shaft of the planetary transmission, to create a direct drive between the input shaft to the planetary transmission and the output shaft of the planetary transmission.