Power plants – Pressure fluid source and motor – Coaxial impeller and turbine unit
Reexamination Certificate
2007-10-12
2010-06-01
Lopez, F. Daniel (Department: 3745)
Power plants
Pressure fluid source and motor
Coaxial impeller and turbine unit
C060S358000
Reexamination Certificate
active
07726122
ABSTRACT:
A hydrodynamic torque converter including a housing connectable to a drive element for rotation in common around an axis of rotation, the housing being fillable with a fluid; a pump wheel in the housing; a turbine wheel in the housing and connected to a takeoff element; and a supporting/sealing hub area on an axial side of the housing and facing away from the drive element, the supporting/sealing hub area comprising a first hub element permanently connected to the housing; and a second hub element connected to the first hub element for rotation in common around the axis of rotation, the second hub element being axially movable relative to the first hub element, the second hub element comprising an outside circumference, a sealing surface on the outside circumference, a first axial end facing away from the drive element, and a rotational driver formation at the first axial end.
REFERENCES:
patent: 2034429 (1936-03-01), De Lavaud
patent: 199 08 123 (2000-08-01), None
Cohen Pontani Lieberman & Pavane LLP
Lopez F. Daniel
ZF Friedrichshafen AG
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