192 clutches and power-stop control – Vortex-flow drive and clutch – Including drive-lockup clutch
Reexamination Certificate
2005-07-12
2005-07-12
Lorence, Richard M. (Department: 3681)
192 clutches and power-stop control
Vortex-flow drive and clutch
Including drive-lockup clutch
C192S070170, C192S212000
Reexamination Certificate
active
06915886
ABSTRACT:
A bridging clutch is installed in a fluid medium-filled housing of a hydrodynamic coupling device located between a drive shaft and a transmission input shaft, the coupling device also containing a pump wheel and a turbine wheel. The bridging clutch is provided with a piston, which, when moved into a first axial position, brings at least one friction element into working connection with at least one friction surface, and when moved into a second axial position, at least partially releases this working connection, and with a torsional vibration damper, which is designed with at least one drive element and with at least one takeoff element, at least one of which has openings for circumferential springs and actuating areas for these springs. At least one of the takeoff elements acts a carrier element for the turbine wheel, which is held otherwise without radial support in the housing. At least one of these elements, namely, either the drive element or the takeoff element, has at least one radial area which is brought up in the axial direction essentially without play to the other one of the elements in question, which radial area serves as axial support for the positioning of the turbine wheel in this direction with respect to the housing of the coupling device.
REFERENCES:
patent: 5052664 (1991-10-01), Lesher et al.
patent: 6290042 (2001-09-01), Breier
patent: 2001/0007383 (2001-07-01), Schmid
patent: 2002/0175037 (2002-11-01), Wack et al.
patent: 2003/0089567 (2003-05-01), Bauer et al.
patent: 2003/0178275 (2003-09-01), Breier et al.
patent: 2004/0107698 (2004-06-01), Schleicher et al.
patent: 2004/0109770 (2004-06-01), Schleicher et al.
patent: 57057958 (1982-04-01), None
Breier Horst
Dacho Jürgen
Frey Peter
Mencher Georg
Rönnebeck Ralf
Cohen & Pontani, Lieberman & Pavane
Lorence Richard M.
ZF Sachs AG
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