Patent · US Active

Multi-ratio transmission

US8403803B2 · kind B2 · utility

93Cited by

6References

5Claims

0Family size

Assignee

ZF FRIEDRICHSHAFEN AG · DE

Inventors

Gerhard Gumpoltsberger · Friedrichshafen, DE
Christian Sibla · Friedrichshafen, DE
Stefan Beck · Eriskirch, DE
Josef Haupt · Tettnang, DE
Gert Bauknecht · Friedrichshafen, DE
Peter Ziemer · Tettnang, DE

Key dates

Filing date	Aug 19, 2010
Grant date	Mar 26, 2013
Priority date	—
Expiry date	Aug 19, 2030

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16H2200/2046
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A multi-stage transmission comprising planetary gearsets (P1, P2, P3, P4), shafts and shift elements. The sun gear of gearset (P1) couples drive shaft (1). The carrier of gearset (P1) couples shaft (3) which can couple housing (G) via brake (03), shaft (1) via clutch (13), which couples the carrier of gearset (P4), and shaft (6), via clutch (36). Shaft (6) couples the ring gear of gearset (P2) and the sun gears of gearsets (P3, P4). Shaft (7) couples the ring gear of gearset (P1) and the carrier of gearset (P2). The sun gear of set (P2) couples shaft (4), which can couple housing (G) via brake (04). The ring gear of gearset (P3) couples shaft (5), which can couple housing (G) via brake (05) and output shaft (2) operatively couples the ring gear of gearset (P4), is connected to the carrier of gearset (P3).

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