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:
Jun. 16, 2015
Filed:
Oct. 29, 2012
Emitec Gesellschaft Fuer Emissionstechnologie Mbh, Lohmar, DE;
Wolfgang Maus, Bergisch Gladbach, DE;
Ludwig Wieres, Overath, DE;
Rolf Brueck, Bergisch Gladbach, DE;
Peter Hirth, Roesrath, DE;
Jan Hodgson, Troisdorf, DE;
EMITEC Gesellschaft fuer Emissionstechnologie mbH, Lohmar, DE;
Abstract
A device for delivering reducing agent from a tank to a metering unit includes a pulsating delivery pump for delivering reducing agent in a delivery direction through a delivery line from the tank to the metering unit. The delivery line includes at least two separate ducts in regions downstream of the delivery pump in the delivery direction. The ducts form flow paths having different propagation times for the reducing agent. This leads, in particular, to cost-effective noise reduction for such delivery systems. A motor vehicle having the device is also provided.