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:
Aug. 24, 2021
Filed:
Nov. 17, 2017
Volvo Truck Corporation, Gothenburg, SE;
Sergi Yudanov, Västra Frölunda, SE;
Pramås Martin, Torslanda, SE;
VOLVO TRUCK CORPORATION, Gothenburg, SE;
Abstract
Arrangement () for an exhaust gas aftertreatment system (), comprising a tank () for storing a reducing agent (); a pump unit arrangement () arranged in downstream fluid communication with the tank; a nozzle () arranged to inject a flow of reducing agent into the exhaust gas aftertreatment system (), the nozzle being arranged in downstream fluid communication with the tank, via the pump unit arrangement, by means of a reducing agent conduit (); an air conduit () arranged in fluid communication with the nozzle () for delivery of compressed air to the nozzle; and a return conduit () arranged in fluid communication between the reducing agent conduit and the tank, the return conduit comprising a return conduit valve arrangement (), wherein the air conduit () is arranged in fluid communication with the reducing agent conduit () for controllably delivery of reducing agent to the tank via the return conduit valve arrangement () by means of providing compressed air from the air conduit to the reducing agent conduit.