Marine exhaust system with a downstream oxygen sensor...

Details Marine exhaust system with a downstream oxygen sensor... Marine exhaust system with a downstream oxygen sensor...

2005-12-12

2009-06-30

Tran, Binh Q (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

C060S276000, C060S298000, C060S299000, C060S320000, C060S321000, C440S08900C, C440S08900C, C440S08900C, C440S08900C

Reexamination Certificate

active

07552586

ABSTRACT:
A marine engine exhaust system has an oxygen sensor located within a catalyst housing structure and downstream from a catalyst device. The oxygen sensor is located away from a reversion liquid trajectory path that defines the likely path of liquid water flowing in a reverse direction through the marine engine exhaust system toward a plurality of exhaust ports of the engine. By locating the oxygen sensor away from this reversion liquid trajectory path, the likelihood of damage to the oxygen sensor from contact with liquid water is significantly reduced.

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