logo

For the Inventor, By the Inventor

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 11052378 B1

PDFFull Text
Date of Patent:
Jul. 06, 2021

Filed:

Jul. 13, 2017

Diesel oxidizing catalytic converter

Applicant:

Umicore Ag & Co. KG, Hanau-Wolfgang, DE;

Inventors:

Christoph Hengst, Butzbach, DE;

Christoph Reith, Motten, DE;

Michael Schiffer, Hanau, DE;

Assignee:

UMICORE AG & CO. KG, Hanau-Wolfgang, DE;

Attorney:

Smith, Gambrell & Russell, LLP

Primary Examiner:

Cam N Nguyen

Int. Cl.
CPC ...
B01J 21/04 (2006.01); B01J 21/06 (2006.01); B01J 21/08 (2006.01); B01J 21/12 (2006.01); B01J 23/02 (2006.01); B01J 23/42 (2006.01); B01J 23/44 (2006.01); B01J 23/58 (2006.01); B01J 35/04 (2006.01); F01N 3/035 (2006.01); F01N 3/10 (2006.01); F01N 3/28 (2006.01); B01D 53/94 (2006.01); B01J 23/10 (2006.01); B01J 37/02 (2006.01);
U.S. Cl.
CPC ...
B01J 23/44 (2013.01); B01D 53/944 (2013.01); B01D 53/9468 (2013.01); B01J 23/10 (2013.01); B01J 35/04 (2013.01); B01J 37/0215 (2013.01); F01N 3/035 (2013.01); F01N 3/103 (2013.01); F01N 3/28 (2013.01); F01N 3/2828 (2013.01); B01D 2255/1021 (2013.01); B01D 2255/1023 (2013.01); B01D 2255/204 (2013.01); B01D 2255/2042 (2013.01); B01D 2255/2092 (2013.01); B01D 2255/20707 (2013.01); B01D 2255/9022 (2013.01); B01D 2255/9032 (2013.01); B01D 2255/9202 (2013.01); F01N 2370/02 (2013.01); F01N 2510/0684 (2013.01);
Abstract

The present invention relates to a diesel oxidizing catalytic converter which comprises a supporting body with a length L which extends between a first end surface a and a second end surface b, and catalytically active material zones A and B of different composition which are arranged on the supporting body, wherein —material zone A comprises palladium or platinum and palladium in a weight ratio Pt:Pd of <1 and, starting from the end surface a, extends to from 20% to 80% of the length L, and —material zone B comprises platinum and palladium in a weight ratio Pt:Pd of <10 and extends to from 80% to 100% of the length L, and wherein material zone B is arranged above material zone A and the weight ratio Pt:Pd in relation to the material zones A and B is from 1.5 to 3.0.

Find Patent Forward Citations

Loading…