US Patent 7892057 Outboard motor with idle relief valve

Patent 7892057 was granted and assigned to Brunswick Corporation on February, 2011 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Brunswick Corporation

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7892057

Date of Patent

February 22, 2011

Patent Application Number

12119876

Date Filed

May 13, 2008

Patent Primary Examiner

‌

Stephen Avila

Patent abstract

An idle exhaust relief passage is provided with a valve that can inhibit flow through the passage in response to certain operating conditions of an engine of an outboard motor. More particularly, operation above a predetermined threshold can be used to inhibit flow through the idle exhaust relief passage. A valve, configured for this purpose, can be a flapper valve.