Marine propulsion – Means for accomodating or moving engine fluids – Means for handling exhaust gas
Reexamination Certificate
2009-04-14
2011-10-18
Venne, Daniel (Department: 3617)
Marine propulsion
Means for accomodating or moving engine fluids
Means for handling exhaust gas
C440S08900C, C440S0880HE
Reexamination Certificate
active
08038493
ABSTRACT:
A catalyzed exhaust system for an outboard motor engine rotates its catalyst device in a catalyst housing above an adapter plate which supports the engine and separates it from the driveshaft housing. The exhaust gas is directed initially in an upwardly direction and then is turned downwardly to provide space for location and easy access to the catalyst device. A coolant, such as water drawn from a body of water, is reversed in direction of flow several times in order to advantageously fill certain cooling channels in an upward direction. In addition, various coolant channels are vented to remove potential pockets of air in their upper regions.
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Broman Jeffrey J.
Habeck Steven W.
Brunswick Corporation
Lanyi William D.
Venne Daniel
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