Multi-speed transmission

US7645207B2 · kind B2 · utility

Assignee

• ZF FRIEDRICHSHAFEN AG · DE

Inventors

• Michael Kamm · Bodnegg, DE
• Gabor Diosi · Friedrichshafen, DE
• Josef Haupt · Tettnang, DE
• Gerhard Gumpoltsberger · Friedrichshafen, DE
• Peter Ziemer · Tettnang, DE
• Martin Brehmer · Tettnang, DE

Key dates

• Filing date: Mar 15, 2007
• Grant date: Jan 12, 2010
• Expiry date: Feb 7, 2028

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H2200/2043
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

An eight gear transmission having drive and output shafts, planetary gearsets, shafts and shifting elements. One carrier of the gearset (RS4) and the drive shaft are coupled to form shaft (1). One ring gear of the gearset (RS2), one carrier of the gearset (RS3) and the output shaft are coupled to form shaft (2). One sun gear of the gearset (RS1) and one sun gear of the gearset (RS4) are coupled to form shaft (3). One carrier of the gearset (RS1) forms shaft (4). One sun gear of the gearset (RS3) forms the fifth shaft. One ring gear of the gearset (RS1) and one carrier of the gearset (RS2) and one ring gear of the gearset (RS3) are coupled to form shaft (6). One ring gear of the gearset (RS4) forms the seventh shaft. One sun gear of the gearset (RS2) forms shaft (8).