Patent · US Active

Transmission unit

US7507178B2 · kind B2 · utility

6Cited by

2References

15Claims

0Family size

Assignee

ZF FRIEDRICHSHAFEN AG · DE

Inventors

Thomas Rosemeier · Meckenbeuren, DE
Ulrich Mair · Friedrichshafen, DE
Detlef Baasch · Friedrichshafen, DE
Christoph Pelchen · Tettnang, DE

Key dates

Filing date	Oct 17, 2006
Grant date	Mar 24, 2009
Priority date	—
Expiry date	Jan 16, 2027

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16H3/725
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A transmission unit (7) with a housing (9), a transmission input shaft (10) and three transmission output shafts (11, 12, 13), at least two planetary gearsets (14, 15) and a device (16) arranged between two actively interconnected shafts (14A, 15A) of the planetary gearsets for variable distribution of torque delivered by the transmission input shaft between two of the three transmission output shafts is described. A web (14D) of the first planetary gearset is formed with a differential cage (19A) of a differential (19), which is provided in order to distribute part of the torque which is delivered by the transmission shaft that has been passed on to the two of the transmission output shafts between the two transmission output shafts.

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