Marine propulsion device internal combustion engine and method f

Details Marine propulsion device internal combustion engine and method f Marine propulsion device internal combustion engine and method f

1991-10-25

1993-04-20

Lazarus, Ira S.

Power plants

Internal combustion engine with treatment or handling of...

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

60302, 440 89, F01N 324

Patent

active

052031675

ABSTRACT:
A marine propulsion device comprising a drive shaft housing, a propeller shaft rotatably supported by the drive shaft housing, an internal combustion engine drivingly connected to the propeller shaft, the engine including a cylinder block defining a cylinder having an exhaust port, and defining an exhaust outlet, and an exhaust passage between the exhaust port and the exhaust outlet, an exhaust catalyst apparatus mounted on the cylinder block, the apparatus including a tongue extending into the cylinder block exhaust passage and dividing the cylinder block exhaust passage into an upstream portion communicating with the exhaust port and a downstream portion communicating with the exhaust outlet, and the apparatus including an exhaust passage communicating between the upstream portion and the downstream portion, and a catalyst located in the apparatus exhaust passage.

REFERENCES:
patent: 2046252 (1036-06-01), Davis
patent: 3017255 (1962-01-01), Norris
patent: 4151717 (1979-05-01), Katsumoto et al.
patent: 4215538 (1980-08-01), Steinwart et al.
patent: 4735046 (1988-04-01), Iwai
patent: 4772236 (1988-09-01), Takahashi
patent: 4848082 (1989-07-01), Takahashi et al.
patent: 4900282 (1990-02-01), Takahashi et al.

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