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. 19, 2017
Filed:
Jul. 13, 2012
Wolfgang Maus, Bergisch Gladbach, DE;
Ludwig Wieres, Overath, DE;
Jan Hodgson, Troisdorf, DE;
Rolf Brück, Bergisch Gladbach, DE;
Wolfgang Maus, Bergisch Gladbach, DE;
Ludwig Wieres, Overath, DE;
Jan Hodgson, Troisdorf, DE;
Rolf Brück, Bergisch Gladbach, DE;
EMITEC Gesellschaft fuer Emissiontechnologie mbH, Lohmar, DE;
Abstract
A method for determining an amount of liquid removed from a tank per unit time includes discontinuously feeding the liquid to exhaust gas of an internal combustion engine by at least feeding the liquid through an injection line into the exhaust gas, measuring pressures simultaneously at least at two points in the injection line and determining an amount of liquid fed in per unit time from the measured pressures. The amount of liquid removed between a first point in time and a second point in time is further derived by integrating the amounts of liquid removed per unit time over a period of time from the first point in time to the second point in time. The method allows the precise consumption of the liquid to be calculated and the remaining amount of liquid in the tank to be additionally determined. On-board diagnosis is further possible with the method.