Patent · US Active

Change-speed gearbox

US7395735B2 · kind B2 · utility

8Cited by

3References

20Claims

0Family size

Assignee

GETRAG FORD Transmissions GmbH · GB

Inventors

Hans Enstrom · Lerum, SE
Andreas Hegerath · Bergheim, DE

Key dates

Filing date	Apr 19, 2006
Grant date	Jul 8, 2008
Priority date	—
Expiry date	Jan 26, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T74/19233
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A change-speed gearbox, in particular for motor vehicles such as hybrid passenger cars and small trucks, comprising input and output shafts, clutches, and gear wheel pairs with fixed and loose wheels. The gearbox provides at least one forward gear by means of the gear wheel pairs, has a gear box unit for a second forward gear, and has in addition an auxiliary drive.

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