Exhaust control assembly for marine stern drive

Details Exhaust control assembly for marine stern drive Exhaust control assembly for marine stern drive

1986-12-17

1988-09-27

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

Divider, collector, valve means, or boundary layer device...

440 89, B63H 2132

Patent

active

047732156

ABSTRACT:
A stern drive marine propulsion system (2) has an inboard engine (4) with an exhaust (6), an outboard drive unit (8) operatively coupled to the engine (4) and separated therefrom by a transom (10) having two exhaust passages (28 and 34) therethrough, and an exhaust control assembly (16) aft of the engine exhaust (6) and forward of the transom (10) and within the boat (12). The assembly (16) has an inlet (18) connected to the engine exhaust (6), and has first and second outlets (22 and 24) communicating with the respective exhaust passages (28 and 34) extending aft through the transom (10). A valve (26) in the assembly (16) selectively controls communication of the inlet (18) with the first outlet (22).

REFERENCES:
patent: 2488563 (1949-11-01), Sills
patent: 3487804 (1970-01-01), Kiekhaefer
patent: 3552121 (1971-01-01), Kitigawa
patent: 3576172 (1971-04-01), Ward
patent: 4178873 (1979-12-01), Bankstahl
patent: 4504238 (1985-05-01), Neisen
patent: 4573318 (1986-03-01), Entringer et al.
patent: 4601666 (1986-07-01), Wood
patent: 4643272 (1987-02-01), Gaffrig
KAAMA Power Systems Catalog and Installation Instructions, KAAMA Marine Enginerring, Inc., 936 Sunset Drive, Costa Mesa, CA 92627 (714) 642-5021.
Keikhaefer Aeromarine Catalog for Exhaust Systems dated 2/86, Kiekhaefer Aeromarine, 1970 Aeromarine Drive, P.O. Box 1458, Fond du Lac, Wisconsin 54935 (414) 921-5330.

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