The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 16, 2015

Filed:

Oct. 05, 2012
Applicant:

Brunswick Corporation, Lake Forest, IL (US);

Inventors:

Charles H. Eichinger, Oshkosh, WI (US);

Scott G. Ahlswede, Plymouth, WI (US);

Assignee:

Brunswick Corporation, Lake Forest, IL (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N 3/04 (2006.01); F01N 13/00 (2010.01); B63H 20/28 (2006.01);
U.S. Cl.
CPC ...
F01N 13/004 (2013.01); F01N 3/046 (2013.01); B63H 20/28 (2013.01);
Abstract

An elongated exhaust conduit comprises a first end receiving hot exhaust gas from a marine engine and a second end discharging the exhaust gas. An elongated cooling water jacket extends adjacent to the exhaust conduit. The cooling water jacket conveys the raw cooling water adjacent to the exhaust conduit to thereby cool the exhaust conduit and warm the raw cooling water therein and discharges the warmed cooling water to cool the marine engine. The cooling water jacket comprises first and second channels that are separate from each other. The cooling water is oriented in a helical flow around the exhaust conduit.


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