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.:

US 9272244 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 01, 2016

Filed:

Dec. 04, 2013
Applicant:

Albonair Gmbh, Dortmund, DE;

Inventors:

Armin Kassel, Hagen, DE;

Michael Kolm, Dortmund, DE;

Werner Overhoff, Marl, DE;

Assignee:

Albonair GmbH, Dortmund, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/00 (2006.01); B01D 53/94 (2006.01); F01N 3/20 (2006.01); F23J 15/00 (2006.01);
U.S. Cl.
CPC ...
B01D 53/9495 (2013.01); F01N 3/208 (2013.01); F23J 15/003 (2013.01); F01N 2550/05 (2013.01); F01N 2610/02 (2013.01); F01N 2610/08 (2013.01); F01N 2610/1453 (2013.01); F02M 2200/31 (2013.01); F23J 2219/10 (2013.01); Y02T 10/24 (2013.01);
Abstract

The invention relates to an electronically controlled metering system having at least one sensor for injection of a reducing agent, especially a urea solution, into the exhaust gas stream of an internal combustion engine for selective catalytic reduction, the metering system being connected/connectable to a tank from which the reducing agent can be taken, the reducing agent being conveyed by means of a pump, the metering system having a first line which carries the reducing agent and the metering system having a compressed air supply and a second line which carries compressed air and at least one nozzle which is coupled to both lines and by which the reducing agent together with the compressed air can be injected into the exhaust gas stream, the metering system in the line which carries the reducing agent having at least one damping element for equalization of pressure fluctuations.


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