Patent · US Active

Dual clutch transmission

US7878083B2 · kind B2 · utility

7Cited by

5References

11Claims

0Family size

Assignee

GETRAG Getriebe- und Zahnradfabrik Hermann Hagen · DE

Inventors

Oliver Nicklass · Kronau, DE
Andreas Mueller · Zeitlarn, DE

Key dates

Filing date	Dec 17, 2007
Grant date	Feb 1, 2011
Priority date	—
Expiry date	May 18, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T74/19288
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A dual clutch transmission has a housing, a drive shaft arrangement, an output shaft and a countershaft. A plurality of gear sets is supported on the drive shaft arrangement and the countershaft, respectively. The gear sets are shifted by means of respective shifting clutches in order to engage different gears. The countershaft is connected to the output shaft via a constant output gear set. The gear sets are divided between two gear trains. A first forward gear and a reverse gear are each assigned to a different gear train. The gear set for the reverse gear is driven via an auxiliary shaft, which is in turn driven via a specific gear set. The specific gear set is assigned to the same gear train as the reverse gear.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.