David James Nicholls

US Patent:

20130153652, Jun 20, 2013

Filed:

Jul 6, 2012

Appl. No.:

13/543160

Inventors:

David J. Nicholls - Naperville IL, US
Jason B. Arriaga - Wheaton IL, US
Jeffrey R. Kelso - Fort Wayne IN, US

Assignee:

International Engine Intellectual Property Company , LLC - Lisle IL

International Classification:

G01F 23/00

US Classification:

235375, 73290 R, 73295, 73296

Abstract:

Systems and methods for determining amount of solid ammonia stored in a canister used in providing ammonia fluid in exhaust gas after-treatment systems. A microcontroller sets an ammonia level based on the data read from an RFID tag associated with the canister. The data may provide the amount of solid ammonia stored in the canister or a tag number that the microcontroller may use to retrieve the quantity of stored solid ammonia. A measured amount of ammonia fluid used during the treatment process may be used by the microcontroller in determining the amount of solid ammonia depleted from the canister. At predetermined precisions, the amount of depleted ammonia is subtracted from the set ammonia level to determine the remaining amount of solid ammonia in the canister. This determined amount of may be used to reset the ammonia level and be written onto the RFID tag.

US Patent:

20140021194, Jan 23, 2014

Filed:

Aug 26, 2011

Appl. No.:

14/008716

Inventors:

Gregory A. Griffin - Glendale Heights IL, US
Timothy Yoon - Northbrook IL, US
Jeffrey R. Kelso - Fort Wayne IN, US
David J. Nicholls - New Haven IN, US
Jason B. Arriaga - Fort Wayne IN, US

Assignee:

International Engine Intellectual Property Company, LLC - Lisle IL

International Classification:

F01N 3/20
H05B 3/42

US Classification:

219494, 219535

Abstract:

A heating jacket for use with an ammonia-containing storage cartridge for the controlled release of ammonia into an exhaust stream for the reduction of NOis disclosed. The heating jacket includes an upper section comprising a plurality of layered materials, a lower section comprising a plurality of layered materials, a tool-less locking mechanism for securing the upper and lower sections, wherein the upper and lower sections together form an interior space for the receiving an ammonia-containing material canister. The heating jacket may also include a temperature regulating device within one of the upper section and the lower section for maintaining an activating temperature within a predefined limit for the controlled release of ammonia into the exhaust stream.

US Patent:

20150159532, Jun 11, 2015

Filed:

Jun 11, 2012

Appl. No.:

14/407375

Inventors:

David J. Nicholls - Naperville IL, US
Jeffrey Kelso - Fort Wayne IN, US
Jason B. Arriaga - Wheaton IL, US

Assignee:

International Engine Intellectual Property Company , LLC - Lisle IL

International Classification:

F01N 3/20
H05B 3/48
H05B 3/06

Abstract:

A heating device and method for use in heating a canister containing a reductant, such as ammonia for use in an after-treatment device in an exhaust system, is disclosed. The heating device or jacket includes two sections forming an interior chamber for receipt of the canister. The sections include multiple layers including an inner surface layer, which provides both uniform heating of the canisters positioned therein, and a wear plate for engaging the canister within the heating unit.