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:
Dec. 15, 2020
Filed:
Jul. 08, 2019
Applicant:
Denso International America, Inc., Southfield, MI (US);
Inventor:
Edward Szczepanski, Grosse Pointe Woods, MI (US);
Assignee:
DENSO International America, Inc., Southfield, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/023 (2006.01); F01N 3/20 (2006.01); F02D 41/02 (2006.01); F01N 9/00 (2006.01); F01N 3/10 (2006.01);
U.S. Cl.
CPC ...
F01N 3/023 (2013.01); F01N 3/2026 (2013.01); F01N 9/002 (2013.01); F02D 41/0295 (2013.01); F01N 3/101 (2013.01);
Abstract
An exhaust system includes a catalytic converter, a particulate filter, a first sensor, and a second sensor. The particulate filter is disposed downstream of the catalytic converter. The first sensor is disposed upstream of the catalytic converter and provides an output identifying a quantity of oxygen in an exhaust flow. The second sensor is disposed downstream of the catalytic converter and upstream of the particulate filter and provides an output identifying a quantity of oxygen in the exhaust flow exiting the catalytic converter.