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:
Jul. 29, 1997
Filed:
Jun. 20, 1995
Applicant:
Inventor:
Gerhard Frankle, Remshalden, DE;
Assignee:
Mercedes-Benz AG, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N / ;
U.S. Cl.
CPC ...
60274 ; 60286 ;
Abstract
In an exhaust gas purification system for an internal combustion engine, particularly a Diesel engine, which includes an electronic control device for timing the fuel injection into the engine and means for adding a reducing agent stored in a tank to the exhaust gas of the engine for reducing the nitric oxide content of the exhaust gas, means are provided for detecting the fill level of the reducing agent tank and means for retarding the injection timing when the fill level detecting means indicates that the reducing agent tank is empty.