Exhaust system for a small watercraft engine

Details Exhaust system for a small watercraft engine Exhaust system for a small watercraft engine

1989-10-05

1991-05-21

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

Treated by washing, or having liquid contact structure

60322, 440 89, F01N 304

Patent

active

050164392

ABSTRACT:
An engine exhaust system for a small watercraft. The engine is fixed to a hull through a damper, while an expansion chamber is fixed directly to the hull. An exhaust port of the engine and an inlet of expansion chamber are connected by an exhaust pipe, and the inlet of expansion chamber and an outlet of exhaust pipe are connected by a fitting with thermal durability and flexibility. In the case where the expansion chamber is followed by a muffler, at least a latter half of the expansion chamber is inserted into the muffler.

REFERENCES:
patent: 4019456 (1977-04-01), Harbert
patent: 4074525 (1978-02-01), LeSalver
patent: 4194460 (1980-03-01), Sato
patent: 4512148 (1985-04-01), Jacobson
patent: 4685292 (1987-08-01), Brigham
patent: 4693079 (1987-09-01), Wuensche
patent: 4773883 (1988-09-01), Nakase

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