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:
Apr. 30, 2002
Filed:
Jan. 07, 2000
Douglas A. Dobson, Plymouth, MI (US);
Jeffrey Scott Hepburn, Birmingham, MI (US);
Michael Igor Kluzner, Oak Park, MI (US);
Robert Joseph Jerger, Dexter, MI (US);
Timothy Chanko, Canton, MI (US);
William Lewis Henderson Watkins, Toledo, OH (US);
Ford Global Technologies, Inc., Dearborn, MI (US);
Abstract
A system and method of normalizing an emissions threshold catalytic brick without a mileage accumulation step is used to evaluate an on-board diagnostics for an exhaust system. The method comprises normalizing a emissions threshold catalytic brick by placing the emissions threshold catalytic brick in a exhaust gas circulation oven, such as a retort chamber immediately after an oven-aging and chemical aging process wherein the emissions threshold catalytic brick is saturated with a exhaust gas at a predetermined rate and at a predetermined temperature for a specified period of time based upon the characteristics desired for the emissions threshold catalytic brick. Additionally, a method for evaluating on-board diagnostics of an exhaust system using an emissions threshold catalytic brick based upon the characteristics of the exhaust system that it will be placed in is also contemplated.