Power plants – Fluid motor means driven by waste heat or by exhaust energy... – With supercharging means for engine
Reexamination Certificate
2008-06-24
2011-11-22
Trieu, Thai Ba (Department: 3748)
Power plants
Fluid motor means driven by waste heat or by exhaust energy...
With supercharging means for engine
C123S568120
Reexamination Certificate
active
08061138
ABSTRACT:
A system for controlling contaminant deposition in an exhaust recirculation cooler mounted in a vehicle to allow exhaust gas to recirculate along a gas recirculation path from the exhaust assembly of the engine to the intake assembly of the engine. The cooler includes a housing defining an exhaust gas inlet leading to an internal gas cooling passageway which, in turn, leads to an exhaust gas outlet. A controller receives flow dependent signals and, in turn, regulates the flow of exhaust gas through the cooler to establish a turbulent flow in order to control the production of deposits in the cooler. Multiple, varying size coolers can be employed, with separate exhaust flows to the coolers being varied in by determining which coolers should be active, while still maintaining turbulent flow patterns.
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Diederiks & Whitelaw PLC
Ford Global Technologies LLC
Trieu Thai Ba
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