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.

Date of Patent:
Feb. 06, 2018

Filed:

Jun. 20, 2013
Applicants:

Volvo Truck Corporation, Göteborg, SE;

Renault Trucks, St Priest, FR;

Inventors:

Albin Hedman, Göteborg, SE;

Gert-Ove Wahlström, Askim, SE;

Tobias Stålfors, Göteborg, SE;

Ervin Omerspahic, Göteborg, SE;

Ladislaf Verbo, Maubec, FR;

Assignees:

Volvo Truck Corporation, Göteborg, SE;

Renault Trucks, St. Priest, FR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N 3/023 (2006.01); B08B 5/02 (2006.01); B01D 46/00 (2006.01); B01D 46/04 (2006.01); F01N 3/021 (2006.01); F01N 3/022 (2006.01);
U.S. Cl.
CPC ...
F01N 3/0237 (2013.01); B01D 46/0068 (2013.01); B01D 46/04 (2013.01); B08B 5/02 (2013.01); F01N 3/0214 (2013.01); F01N 3/0232 (2013.01); F01N 3/0233 (2013.01); F01N 3/0222 (2013.01); F01N 2290/04 (2013.01); F01N 2290/06 (2013.01);
Abstract

A gas flow regulating device for cleaning a particulate filter is configured to be arranged in connection to the filter at a side thereof in a through-flow of a gas to be used for cleaning the filter. The device is a standalone unit configured to be removably installed in connection with a cleaning process, wherein the device includes a frame defining a gas flow passage and a gas flow regulating element arranged inside the frame, wherein the gas flow regulating element is provided with at least one opening for gas through-flow and a blocking part capable of blocking a portion of a gas through-flow area of the filter such as to force the gas to flow through the at least one opening, wherein the gas flow regulating element is movably arranged between at least two different positions, and wherein the at least one opening covers different portions of the gas through-flow area in the different positions. An arrangement for cleaning a particulate filter including such a device, and a method for cleaning a particulate filter using such a device are also provided.


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