Internal-combustion engines – Lubricators – Crankcase – pressure control
Reexamination Certificate
2006-11-03
2008-07-08
Cronin, Stephen K. (Department: 3747)
Internal-combustion engines
Lubricators
Crankcase, pressure control
Reexamination Certificate
active
07395803
ABSTRACT:
An engine lubrication oil flow control system and control method for an engine in a hybrid electric vehicle powertrain is disclosed. An engine lubrication oil pump is powered by a lubrication oil pump motor. Provision is made to start the lubrication pump motor at the initiation of engine cranking upon a transition from an engine-off driving mode to an engine-on driving mode. An engine oil pressure signal is used to indicate engine filter maintenance is needed. The oil pump motor may be powered by a vehicle powertrain traction battery.
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Search Report under Section 17(5) for GB0721023.0 dated Jan. 21, 2008.
Boismier Jeffrey
Cadwell Floyd
Dolan George
Konopa Jason
Ledger David
Ali Hyder
Brooks & Kushman P.C.
Cronin Stephen K.
Ford Global Technologies LLC
Kelley David B.
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