Multi-speed transmission

US7597646B2 · 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 29, 2007
• Grant date: Oct 6, 2009
• Expiry date: Feb 23, 2028

Classification

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

Abstract

The transmission has an input and output shaft, planetary gearsets, rotatable shafts, and shifting elements. A carrier of the gearset (RS4) and the input shaft are coupled to form the shaft (1). A ring gear of the gearset (RS2), a carrier of the gearset (RS3), and the output shaft are coupled to form a shaft (2). A sun gear of the gearset (RS1) and a sun gear of the gearset (RS4) are coupled to form shaft (3). A ring gear of the gearset (RS1) forms the shaft (4). A sun gear of the gearset (RS3) and a carrier of the gearset (RS2) are coupled to form the shaft (5). A carrier of the gearset (RS1) and a ring gear of the gearset (RS3) are coupled to form the shaft (6). A ring gear of the gearset (RS4) forms the shaft (7). A sun gear of the gearset (RS2) forms the shaft (8).