Pumps – Condition responsive control of pump drive motor – With plural separate drive motor controlling elements
Reexamination Certificate
2007-02-12
2011-11-29
Kramer, Devon C (Department: 3746)
Pumps
Condition responsive control of pump drive motor
With plural separate drive motor controlling elements
C417S223000, C417S316000, C417S374000, C477S005000
Reexamination Certificate
active
08066492
ABSTRACT:
A drive device (2) for the oil pump (6) of a motor vehicle automatic transmission, in which the oil pump (6) on the one hand can be coupled to the drive motor by way of an overrunning clutch (34) and on the other hand is drivingly connected to an auxiliary electric motor (22), which is powered by the on-board power supply of the motor vehicle. The electric motor (22) is arranged outside of the pump housing (8) and is drivingly connected to a driven pump impeller wheel (ring gear10) that is arranged in the pump housing via a non-rotatable connection.
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Davis & Bujold P.L.L.C.
Gatzemeyer Ryan
Kramer Devon C
ZF Friedrichshafen AG
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