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:
Feb. 11, 2003
Filed:
Nov. 12, 1999
Applicant:
Inventor:
Roland Stahl, Freiberg, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 2/7407 ;
U.S. Cl.
CPC ...
G01N 2/7407 ;
Abstract
To determine the oxidizable portion of exhaust gases in the presence of the reducible portion with the legally required precision, a method and a sensor are disclosed for analyzing a flow of exhaust gas components. The sensor includes a limit current measurer, one limit current pump for reducible gases and, downstream from this pump in the direction of diffusion, another limit pump for oxidizable gases. The electrodes of the limit current pump for reducible gases are made of a material that does not catalyze the reaction between oxidizable and reducible gases.