Patent · US Active

Fluid coupling launch device

US8607948B2 · kind B2 · utility

5Cited by

3References

18Claims

0Family size

Assignee

Schaeffler Technologies AG & Co. KG · DE

Inventors

Todd Sturgin · Wadsworth, US
Philip George · Wooster, US
Jeffrey Hemphill · Copley, US

Key dates

Filing date	Mar 3, 2011
Grant date	Dec 17, 2013
Priority date	—
Expiry date	Mar 7, 2032

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16H2045/0284
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A launch device for a vehicle transmission including a housing, an impeller, a turbine, and first and second clutches with first and second pistons, respectively. The first and second pistons are sealingly engaged with one another. The first clutch releaseably engages the impeller with the housing and the second clutch releaseably engages the turbine with the housing. In an example embodiment, the first clutch is disposed radially outside of the second clutch. In an example embodiment, the first clutch is engaged by a first pressure, and the second clutch is engaged by a second pressure greater than the first pressure.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.