Dual clutch transmission

US8393238B2 · kind B2 · utility

Assignee

• ZF FRIEDRICHSHAFEN AG · DE

Inventors

• Gerhard Gumpoltsberger · Friedrichshafen, DE
• Juergen Wafzig · Eriskirch, DE
• Matthias Reisch · Ravensburg, DE
• Wolfgang Rieger · Friedrichshafen, DE
• Ralf Dreibholz · Meckenbeuren, DE
• Markus Maier · Graz, AT

Key dates

• Filing date: Oct 8, 2008
• Grant date: Mar 12, 2013
• Expiry date: Sep 6, 2029

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T74/19233
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A double clutch transmission with two clutches connected to a drive shaft and to one of two transmission input shafts. Fixed gears are coupled to the input shafts and engage idler gears. Several coupling devices connect the idler gears to a respective countershaft which have an output gear that couple gears of an output shaft such that forward and reverse gears can be shifted. Three dual gear planes each comprise two idler gears, each supported by a respective countershaft, and one fixed gear. In each dual gear plane, at least one idler gear wheel can be used for implementing at least two gears so that at least one winding-path gear can be shifted via a shifting device.