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:
Aug. 10, 1976
Filed:
Jun. 28, 1974
Applicant:
Inventors:
Hans Siebke, Gerlingen, DT;
Brigitte Moro, Gerlingen, DT;
Manfred Schonborn, Gerlingen, DT;
Horst Jahnke, Gerlingen, DT;
Assignee:
Robert Bosch G.m.b.H., Stuttgart, DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
204 / ; 2041 / ; 2041 / ; 2041 / ; 60276 ; 60285 ;
Abstract
Control system and apparatus for measuring and monitoring the nitrogen oxides content of internal combustion engine exhaust gases. The exhaust gases are contacted with the reducing electrode of a sensor cell having a predetermined potential established between the cell electrodes so that the reducing electrode is able to reduce both the nitrogen oxides and oxygen content of the exhaust gas. The current flowing through the sensor cell is measured to determine whether the nitrogen oxides content of the exhaust gas is sufficiently low.