Idling noise silencer for marine propulsion unit

Details Idling noise silencer for marine propulsion unit Idling noise silencer for marine propulsion unit

1988-12-02

1990-09-18

Peters, Jr., Joseph F.

Marine propulsion

Means for accomodating or moving engine fluids

Means for handling exhaust gas

204147, B63H 2132

Patent

active

049574612

ABSTRACT:
A marine outboard drive including an exhaust system that includes a baffle plate which is disposed across the low speed exhaust gas opening and which defines a plurality of ribs to break up the exhaust gas bubbles during idling for silencing. The baffle plate is formed as a sacrificial anode so as to offer galvanic protection and to permit ease of replacement.

REFERENCES:
patent: 3183880 (1965-05-01), Shimanckas
patent: 3893407 (1975-07-01), Hurst

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