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:
Oct. 20, 1998
Filed:
Feb. 24, 1997
Applicant:
Inventors:
Douglas Ray Hamburg, Bloomfield Hills, MI (US);
Eleftherios Miltiadis Logothetis, Birmingham, MI (US);
Jacobus Hendrik Visser, Farmington Hills, MI (US);
Margherita Zanini-Fisher, Bloomfield, MI (US);
Assignee:
Ford Global Technologies, Inc., Dearborn, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N / ;
U.S. Cl.
CPC ...
60274 ; 60276 ; 60277 ;
Abstract
A hydrocarbon sensor measures the tail pipe hydrocarbon concentration emitted by an internal combustion engine to determine whether a catalyst has deteriorated beyond a predetermined point with respect to reducing hydrocarbon emissions. Catalyst performance is measured following an engine cold start when hydrocarbons are emitted and compared to catalyst performance when operating temperature has been reached to determine catalyst efficiency.