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. 18, 2012
Filed:
Jan. 25, 2008
Friedrich Zapf, Karlstadt, DE;
Thorsten Pelz, Neubrunn, DE;
Heico Stegmann, Wuerzburg, DE;
Other;
Abstract
The invention relates to a volume quantity dispensing unit, in particular as a unit for metering an aqueous solution such as a urea/water solution, which can be used in an exhaust gas aftertreatment unit (), comprising a pressure transducer (), in particular comprising an electric pressure sensor, the volume quantity dispensing of the volume quantity dispensing unit following an electric signal () and the volume quantity dispensing unit being calibrated. There is provided at least one means () for changing a pressure value (), which means changes the pressure value () in such a way that the pressure value (), which is intended to correspond to the pressure in the volume quantity dispensing unit, is an input signal for a volume quantity () to be dispensed.