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. 04, 2007
Filed:
Jan. 26, 2006
Applicants:
Hans Erlach, Kühnsdorf, AT;
Johann Simperl, Thal, AT;
Inventors:
Hans Erlach, Kühnsdorf, AT;
Johann Simperl, Thal, AT;
Assignee:
AVL List GmbH, Graz, AT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01L 3/26 (2006.01); G01L 5/13 (2006.01); G01M 15/00 (2006.01); G01N 7/00 (2006.01); G01N 33/497 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method and apparatus for determining the quantities of pollutants in the exhaust gases of internal combustion engines wherein an essentially constant and fully conditioned quantity of humidity and/or temperature-conditioned combustion gas is supplied to the internal combustion engine at each instant whose quantity corresponds to at least the maximum quantity required by the respective combustion engine, wherein the exhaust gas is diluted with the quantity of combustion gas not used by the combustion engine, and then tested relative to quantities of pollutants and flow rate.