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Title:
HYDRODYNAMIC CONVERTER WITH TWO BRIDGING CLUTCHES
Document Type and Number:
WIPO Patent Application WO/2011/110310
Kind Code:
A3
Abstract:
A launch device (100) for a vehicle transmission including a housing (102,104), an impeller (126), a turbine (148), and first and second clutches (176,178) with first and second pistons (136,144), 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.

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Inventors:
STURGIN TODD (US)
GEORGE PHILIP (US)
HEMPHILL JEFF (US)
Application Number:
PCT/EP2011/001065
Publication Date:
February 28, 2013
Filing Date:
March 03, 2011
Export Citation:
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Assignee:
SCHAEFFLER TECHNOLOGIES AG (DE)
STURGIN TODD (US)
GEORGE PHILIP (US)
HEMPHILL JEFF (US)
International Classes:
F16H45/02
Foreign References:
DE102008031956A12009-02-05
US20040188208A12004-09-30
US20080156608A12008-07-03
Attorney, Agent or Firm:
SCHAEFFLER TECHNOLOGIES AG & CO. KG (Herzogenaurach, DE)
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