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.
Patent No.:
Date of Patent:
Sep. 08, 2009
Filed:
May. 01, 2007
Applicant:
Clement Vanden Godbold, Rock Hill, SC (US);
Inventor:
Clement Vanden Godbold, Rock Hill, SC (US);
Assignee:
Deere & Company, Moline, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02B 77/08 (2006.01); F02B 77/11 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method and system for reducing noise associated with an internal combustion engine comprises operating an engine at an initial speed. An exhaust system has a resonant cavity to attenuate exhaust noise. A microphone detects a sound level at or near an exhaust system of the engine operated the initial speed. A controller controls or adjusts the initial speed to a revised speed if the detected sound level does not meet or fall below a desired sound level.