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:
Sep. 03, 2013
Filed:
Sep. 03, 2008
Joséluis Miguez Tabares, Vigo, ES;
Santiago Murillo Zapatero, Blade, ES;
Knut Hoyer, Schwenningen, DE;
JoséLuis Miguez Tabares, Vigo, ES;
Santiago Murillo Zapatero, Blade, ES;
Knut Hoyer, Schwenningen, DE;
Testo AG, Lenzkirch, DE;
Abstract
The invention relates to a method and a device for determining specific emissions as an exhaust gas characteristic of an internal combustion engine. Said method is characterized in that the exhaust gas mass flow () is determined as the first operating parameter and the engine power output () as the second operating parameter, the nitrous oxide mass flow () and the engine power output () are derived from a respective measured value that deviates from the operating parameter and the exhaust gas characteristic is calculated as a quotient from the corrected exhaust gas mass flow () and the engine power output ().