Patent · US Active

Multi-ratio transmission

US8303455B2 · kind B2 · utility

144Cited by

8References

6Claims

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	Nov 6, 2012
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 speed transmission comprising planetary gearsets (P1, P2, P3, P4), shafts and shift elements. The sun gear of gearset (P1) couples shaft (4) which can couple housing (G) via brake (04) and the carrier of set (P1) couples shaft (3) which can couple housing (G), via brake (03), and drive shaft (1) via clutch (13), and shaft (6) via clutch (36). Shaft (6) couples the ring gear of gearset (P2) and the sun gears of gearsets (P3, P4). Shaft (1) couples the sun gear of gearset (P2) and is operatively connected to the carrier of gearset (P3). Shaft (7) couples the ring gear of set (P1) and the carrier of gearset (P2). The ring gear of gearset (P4) couples shaft (5) which can couple housing (G) via brake (05) and output shaft (2) operatively couples the carrier of gearset (P4) and the ring gear of gearset (P3).

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