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. 04, 1994
Filed:
Dec. 16, 1993
Applicant:
Inventor:
Wallace R Wade, Farmington Hills, MI (US);
Assignee:
Ford Motor Company, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N / ;
U.S. Cl.
CPC ...
60274 ; 60276 ; 60277 ;
Abstract
Monitoring a light-off catalyst in conjunction with an internal combustion engine includes providing exhaust gas oxygen sensors upstream and downstream of the light-off catalyst for monitoring operation of the catalyst. The monitoring is disabled when the mass air flow through the light-off catalyst is so high that the catalyst monitor is saturated and unable to detect the operation of the light-off catalyst.