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:
Feb. 07, 2017
Filed:
Jul. 09, 2012
Applicants:
Ewgenij Landes, Remseck, DE;
Peter Boehland, Marbach, DE;
Inventors:
Ewgenij Landes, Remseck, DE;
Peter Boehland, Marbach, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/10 (2006.01); F01N 3/20 (2006.01); F01N 3/24 (2006.01); F04B 23/10 (2006.01);
U.S. Cl.
CPC ...
F01N 3/10 (2013.01); F01N 3/208 (2013.01); F01N 3/2066 (2013.01); F01N 3/24 (2013.01); F01N 2610/02 (2013.01); F01N 2610/1433 (2013.01); F01N 2610/1466 (2013.01); F01N 2610/1473 (2013.01); F01N 2610/1493 (2013.01); F04B 23/10 (2013.01);
Abstract
Proposed is a dosing module for injecting liquid urea-water solution into the exhaust tract of an internal combustion engine, which dosing module is composed of two pumps, specifically a delivery pump () and an aeration pump (). This permits firstly the injection of urea-water solutions and secondly safe and reliable ventilation of the system when the internal combustion engine is to be shut down.