Marine emissions control

Internal-combustion engines – Charge forming device – Including exhaust gas condition responsive means

Reexamination Certificate

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Details

C060S274000, C060S298000, C440S08900C, C440S08900C

Reexamination Certificate

active

07314044

ABSTRACT:
A marine engine has an exhaust system including a catalyst cooled by a flow of coolant, a coolant injector that injects coolant into the flow of exhaust at a point downstream of the catalyst, and a sensor arranged to sense a characteristic of the flow of exhaust, such as oxygen or carbon monoxide level. The engine controller is configured to control an air/fuel ratio of the engine as a function of the sensed exhaust flow characteristic.

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