Michael P Bradford

US Patent:

20180238217, Aug 23, 2018

Filed:

Aug 19, 2016

Appl. No.:

15/753494

Inventors:

- Lake Forest IL, US
- Edenkoben, DE
Adam J. KOTRBA - Laingsburg MI, US
Padmanabha R. ETTIREDDY - Canton MI, US
Michael C. BRADFORD - Chelsea MI, US
Bradley FINGLAND - Jackson MI, US
John W. DEGEORGE - Michigan Center MI, US
Philipp KREUTZIGER - Landau, DE
Manuel KLUCK - Neustadt, DE
Michael FLOCKERT - Hassloch, DE
Mathias HUND - Hassloch, DE
Eric A. HEIN - Neustadt An Der Weinstrasse, DE

Assignee:

Tenneco Automotive Operating Company Inc. - Lake Forest IL
Tenneco GmbH - Edenkoben

International Classification:

F01N 3/20
B01D 53/94

Abstract:

An exhaust aftertreatment system may include a reductant tank, a gaseous ammonia source, an injector, first conduit and a second conduit. The injector may receive the liquid reductant from the reductant tank and the gaseous ammonia from the gaseous ammonia source and inject the liquid reductant into a stream of exhaust gas in a first mode, inject the gaseous ammonia into the stream of exhaust gas in a second mode, and both the liquid reductant and the gaseous ammonia into the stream of exhaust gas in a third mode. The first conduit may communicate liquid reductant from the reductant tank to the injector. The second conduit may communicate gaseous ammonia from the gaseous ammonia source to the injector.

US Patent:

20180171857, Jun 21, 2018

Filed:

Dec 21, 2016

Appl. No.:

15/386126

Inventors:

- Lake Forest IL, US
Bradley FINGLAND - Jackson MI, US
Michael C. BRADFORD - Chelsea MI, US
Adam J. KOTRBA - Laingsburg MI, US

International Classification:

F01N 13/14
C04B 35/16
C04B 35/626
C04B 35/64

Abstract:

The present disclosure provides a method of producing an insulation preform having graded porosity for an exhaust treatment component of a vehicle. The method includes obtaining a first granular insulating material having a first diameter, a second granular insulating material having a second diameter less than the first diameter, an inorganic binder, and water. The method further includes producing a slurry comprising the first granular insulating material, the second granular insulating material, the inorganic binder, and water. The slurry is introduced into a mold having at least one surface adapted for vacuum extraction. A liquid phase of the slurry is evacuated from the mold using vacuum extraction to produce a moist preform. The moist preform has graded porosity such that a greater concentration of the second insulation material is adjacent to the at least one surface than the first insulating material. The moist preform is heated to produce the insulation preform.

US Patent:

20170122169, May 4, 2017

Filed:

Nov 3, 2015

Appl. No.:

14/931039

Inventors:

- Lake Forest IL, US
Bradley FINGLAND - Jackson MI, US
Adam J. KOTRBA - Laingsburg MI, US
John W. DEGEORGE - Michigan Center MI, US
Michael C. BRADFORD - Chelsea MI, US

International Classification:

F01N 3/20
F01N 3/021
B01D 53/94
F01N 13/00

Abstract:

An exhaust aftertreatment system may include a reductant tank, a reactor system, a storage tank, a first conduit and a second conduit. The reactor system may receive reductant from the reductant tank and may output a gas comprising ammonia. The storage tank may receive gas comprising ammonia from the reactor system and may store a volume of gas comprising ammonia. The first conduit may communicate gas comprising ammonia from the reactor system to a stream of exhaust gas. The first conduit may bypass the storage tank. The second conduit may communicate gas comprising ammonia from the storage tank to the stream of exhaust gas.