Emission reduction in a diesel engine by selective use of...

Details Emission reduction in a diesel engine by selective use of... Emission reduction in a diesel engine by selective use of...

2005-12-13

2005-12-13

Richter, Sheldon J (Department: 3748)

Power plants

Fluid motor means driven by waste heat or by exhaust energy...

With supercharging means for engine

C123S559200, C123S568200

Reexamination Certificate

active

06973786

ABSTRACT:
A compression ignition engine (10) has an EGR system operable to provide a first EGR loop (46, 52, 54) when the engine is lightly loaded and a second EGR loop (46, 52, 56) when the engine is more heavily loaded. When the first EGR loop is selected, exhaust gas is recirculated from a location upstream of a turbine (20) of a turbocharger (18) to a location downstream of the turbocharger compressor (22). When the second EGR loop is selected, exhaust gas is recirculated from a location downstream of the turbine to a location upstream of the compressor.

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