192 clutches and power-stop control – Vortex-flow drive and clutch – Including drive-lockup clutch
Patent
1999-02-05
2000-01-25
Bonck, Rodney H.
192 clutches and power-stop control
Vortex-flow drive and clutch
Including drive-lockup clutch
192 5561, 192 57, 1922131, 464 64, 464 67, F16H 4502, F16D 366
Patent
active
060168943
ABSTRACT:
A hydrodynamic coupling device includes an impeller wheel with an impeller shell and a vane arrangement and a turbine wheel with a turbine shell and vane arrangement. The vane arrangements of the impeller wheel and the turbine wheel form a hydrodynamic circuit. A lockup clutch is constructed with an axially movable piston for transmitting torque by the application of pressure in the direction of a primary flange of a clutch housing via at least one friction facing provided axially between the piston and the primary flange. The lockup clutch has a torsional vibration damper with a drive-side transmission element and a driven-side transmission element which is movable relative to the latter, each of which is provided with driving means for elastic elements. The torsional vibration damper has a damping device that penetrates axially, at least along part of its axial extension, into an annular space that is enclosed by the turbine wheel and at least partially enclosed by the impeller wheel such that the damping device is arranged radially inside of the hydrodynamic circuit. The annular space is formed by an axial bulge of a radial lengthening of the turbine shell. The radial lengthening projects radially inward up to the turbine hub. The axial bulge approaches the side of the clutch housing remote of a drive up to the width of a gap, and this gap has a width which is sufficient to ensure that the turbine wheel can move relative to the clutch housing without contact.
REFERENCES:
patent: 4049093 (1977-09-01), Vukovich et al.
patent: 4138003 (1979-02-01), Malloy
patent: 5004082 (1991-04-01), Sakakibara et al.
patent: 5377796 (1995-01-01), Friedmann et al.
Bonck Rodney H.
Mannesmann Sachs AG
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