Multi-ratio transmission

US8529394B2 · kind B2 · utility

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: Sep 10, 2013
• Expiry date: Sep 20, 2030

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H2200/2097
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A multi step transmission comprising four planetary gear sets, shafts, and shift elements, the sun gear of gearset (P1) couples shaft (4) which couples housing (G) via brake (04), the carrier of gearset (P1) couples shaft (3) which couples 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 is operatively connected to the sun gear of gearset (P4). Shaft (1) couples the sun gear of gearset (P2) and the carrier of gearset (P3). Shaft (5) couples the ring gear of gearset (P1), the carrier of gearset (P2), and the sun gear of gearset (P3). The ring gear of gearset (P4) couples housing (G). Output shaft (2) detachably couples shaft (7), which couples the ring gear of gearset (P3), via clutch (27), and operatively couples the carrier of gearset (P4).