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US 6,638,124 B2Granted
Arrangement in a marine exhaust system
AssigneeAB Volvo Penta
InventorsGeorge Zoubul, William M. Cahoon
Life of this patent
Estimating the term…
Abstract
Method and arrangement for a marine combustion engine exhaust system. The arrangement includes at least two substantially upstanding exhaust pipe arms that are coupled together in common closed fluid communication with a stem exhaust pipe. A pressure equalizer is fluidly connected between the upstanding exhaust pipe arms. The pressure equalizer is configured to provide sufficient fluid passage from each exhaust pipe arm to another to prevent flow back of sea water to a marine combustion engine associated therewith.
Claims6
An arrangement in a marine combustion engine exhaust system, said arrangement comprising:
- at least two substantially upstanding exhaust pipe arms, said upstanding exhaust pipe arms coupled together in common closed fluid communication with a stem exhaust pipe;
- and
- a pressure equalizer fluidly connected between said upstanding exhaust pipe arms, said pressure equalizer configured to provide sufficient fluid passage from each exhaust pipe arm to another to prevent flow back of sea water to a marine combustion engine associated therewith.
Dependencies are inferred from the claim text.