Multi-ratio transmission

US8702554B2 · 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 11, 2010
• Grant date: Apr 22, 2014
• Expiry date: Feb 11, 2031

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H2200/2046
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

The multi-ratio transmission with forward and reverse gears, gearsets (P1, P2, P3, P4), shafts and shifting elements. A sun gear of the gearset (P1) directly couples an input shaft, which couples, via clutch (14), shaft (4) and, via clutch (17), shaft (7). Shaft (4) couples the carrier of gearset (P2) and the ring gear of gearset (P3) and couples, via brake (04), a housing. Shaft (7) couples the sun gear of gearset (P4) and, via clutch (78), shaft (8), which couples the sun gears of gearsets (P3, P2). Shaft (3) couples the carrier of gearset (P1) and the ring gear of gearset (P2) and, via brake (03), the housing. Shaft (5) couples the ring gear of gearset (P1) and, via brake (05), the housing. Shaft (6) couples the carrier of gearset (P3) and the ring gear of gearset (P4). The output shaft couples the carrier of gearset (P4).