Multi-stage automatic transmission with three planetary gearwheel assemblies

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7255661
APP PUB NO 20060105879A1
SERIAL NO

11330646

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A multi-stage automatic transmission comprises a drive input shaft (AN), a drive output shaft (AB), three planetary gearwheel assemblies (RS1, RS2, RS3) arranged next to one another in series and five shift control elements (A to E). A sun gearwheel (SO3) of the third planetary gearwheel assembly (RS3) can be fixed relative to a transmission housing (GG) by the first shift control element (A). The drive input shaft (AN) is connected to a sun gearwheel (SO2) of the second planetary gearwheel assembly (RS2) and can be connected via the second shift control element (B) to a sun gearwheel (SO1) of the first planetary gearwheel assembly (RS1) and/or via the fifth shift control element (E) to a web (ST1) of the first planetary gearwheel assembly (RS1).

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Patent Owner(s)

  • ZF FRIEDRICHSHAFEN AG

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Tiesler, Peter Meckenbeuren, DE 38 972
Ziemer, Peter Tettnang, DE 194 6528

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