Christine J Lambert

US Patent:

6823663, Nov 30, 2004

Filed:

Nov 21, 2002

Appl. No.:

10/301043

Inventors:

Robert Henry Hammerle - Franklin MI
Christine Kay Lambert - Westland MI
Paul M. Laing - Canton MI
Paul Joseph Tennison - Oak Park MI
William Charles Ruona - Farmingtion Hills MI

Assignee:

Ford Global Technologies, LLC - Dearborn MI

International Classification:

F01N 300

US Classification:

60286, 60274, 60295, 60301, 60311

Abstract:

A system and a method for effective NOx and particulate matter control in a diesel or other lean burn internal combustion engine is presented. The system includes a urea-based SCR catalyst having an oxidation catalyst coupled upstream of it and a particulate filter coupled downstream of the SCR catalyst. The particulate filter regeneration method teaches controlling operating conditions to bring the particulate filter temperature in the range where exothermic reaction between hydrocarbon and oxygen occurs. Once this is accomplished, extra hydrocarbons are injected into the exhaust gas entering the particulate filter where they combust and the resulting exotherm regenerates the filter. This method achieves effective particulate matter control while eliminating the risk of thermal damage to the upstream devices and minimizing regeneration fuel economy penalty.

US Patent:

6928806, Aug 16, 2005

Filed:

Nov 21, 2002

Appl. No.:

10/301137

Inventors:

Paul Joseph Tennison - Oak Park MI, US
Paul M. Laing - Canton MI, US
Christine Kay Lambert - Westland MI, US
Robert Henry Hammerle - Franklin MI, US
William Charles Ruona - Farmington Hills MI, US

Assignee:

Ford Global Technologies, LLC - Dearborn MI

International Classification:

F01N003/00

US Classification:

60286, 60276, 60289, 60295, 60297, 60301, 60303

Abstract:

A system for effective NOx and particulate matter control in a diesel or other lean burn internal combustion engine is presented. The system includes a urea-based SCR catalyst having an oxidation catalyst coupled upstream of it and a particulate filter coupled downstream of the SCR catalyst. This system configuration results in improved NOx conversion due to fast SCR catalyst warm-up and higher operating temperatures. Additionally, placing the particulate filter last in this system configuration reduces tailpipe ammonia emissions as well as prevents any thermal damage to the SCR catalyst due to the particulate filter regeneration.

US Patent:

7225613, Jun 5, 2007

Filed:

Jan 26, 2005

Appl. No.:

10/905915

Inventors:

Robert Hammerle - Franklin MI, US
Christine Lambert - Westland MI, US

Assignee:

Ford Global Technologies, LLC - Dearborn MI

International Classification:

F01N 3/00

US Classification:

60297, 60274, 60301, 60311, 422170, 422177, 502150, 502340, 502439

Abstract:

An automobile exhaust filter that both traps particulates while altering the concentration of one or more gaseous species is provided. This dual functionality is combined in a single device by utilizing a reactive material that simultaneously alters gaseous component concentration while filtering out particulate material. The automobile exhaust filter is suitable for inclusion in the exhaust of a diesel-powered vehicle. A method utilizing the automobile exhaust catalyst is also provided.

US Patent:

7320781, Jan 22, 2008

Filed:

Jul 1, 2002

Appl. No.:

10/186690

Inventors:

Christine Kay Lambert - Westland MI, US
Karen Marie Adams - Ann Arbor MI, US
Robert Henry Hammerle - Franklin MI, US

International Classification:

B01D 53/56

US Classification:

4232391

Abstract:

A method for controlling reductant injection into an exhaust stream upstream of a catalyst coupled to an internal combustion engine is disclosed. In the method, an ammonia sensor located downstream of the exhaust catalyst is used to determine ammonia concentration in the exhaust stream. The ammonia concentration is compared to an allowable threshold and an allowable fraction, i. e. , a maximum limit on a fraction of ammonia in the exhaust stream compared with the ammonia supplied by the reductant injector. Additionally, based on a NOx sensor, it is determined whether NOx conversion of the catalyst has increased in response to an increase in reductant injection. If not, reductant injection quantity is reduced.

US Patent:

7971430, Jul 5, 2011

Filed:

Apr 4, 2008

Appl. No.:

12/098280

Inventors:

Christine Kay Lambert - Dearborn MI, US
Yinyan Huang - Northville MI, US
Harold Huimin Sun - West Bloomfield MI, US
Christopher Oberski - Plymouth MI, US

Assignee:

Ford Global Technologies, LLC - Dearborn MI

International Classification:

F01N 3/10

US Classification:

60301, 60274, 60286, 60287, 60288, 60299, 60303

Abstract:

A system for treating exhaust gases from an engine is described. The system includes, the exhaust gases routed from the engine to atmosphere through an exhaust passage, the system comprising: an injector directing a spray of reductant into the exhaust gases routed from the engine to atmosphere; an exhaust separation passage that separates an exhaust gas flow received from the engine into a plurality of separate exhaust gas flows; a plurality of oxidation catalysts, each of which receives one of the plurality of separate exhaust gas flows; a flow combining passage that receives the plurality of separate exhaust gas flows and combines them into a re-combined exhaust gas flow; a turbocharger that receives the re-combined exhaust gas flow from the flow combining passage; and a selective catalytic reduction catalyst positioned downstream of the turbocharger.

US Patent:

8071038, Dec 6, 2011

Filed:

Jun 9, 2010

Appl. No.:

12/796720

Inventors:

James W. Girard - Vienna, AT
Giovanni Cavataio - Dearborn MI, US
Jeong Yeol Kim - Troy MI, US
Christine Kay Lambert - Dearborn MI, US

Assignee:

Ford Global Technologies, LLC - Dearborn MI

International Classification:

B01D 50/00
F01N 3/10

US Classification:

422177, 422180, 60286, 60289, 60297, 60299

Abstract:

The present invention relates to an emission control system for reducing gases from the exhaust of a combustion engine. In at least one embodiment, the emission control system includes an exhaust passage for transporting the exhaust from the combustion engine, and a particulate filter and selective catalytic reduction (SCR/PF) unit disposed within the passage, with the unit having a plurality of spaced filter walls extending axially along the passage and selective catalytic reduction catalyst variably loaded on the unit to provide a more uniform pressure drop relative to a unit having uniformly loaded catalyst.

US Patent:

8191354, Jun 5, 2012

Filed:

Oct 20, 2009

Appl. No.:

12/582450

Inventors:

Giovanni Cavataio - Dearborn MI, US
Jeong Yeol Kim - Troy MI, US
Michael Goebelbecker - Dearborn Heights MI, US
Paul M Laing - Canton MI, US
Christine Kay Lambert - Dearborn MI, US

Assignee:

Ford Global Technologies, LLC - Dearborn MI

International Classification:

F01N 5/04

US Classification:

60280, 60274, 60284, 60287, 60288, 60292, 606051, 60612

Abstract:

Systems and methods for reducing NOx emissions using a branched exhaust system with a first and second turbine including an emission-control device containing a zeolite, are described. In one example approach, a method comprises: during a first duration when exhaust temperature is below a first temperature threshold, directing exhaust gas through the second turbine and the emission-control device, and adjusting the second turbine to control intake boost; and during a second duration following the first, directing exhaust gas through the first turbine, and adjusting the first turbine to control intake boost. In this way, the first and second turbines may provide a greater degree of boost control in order to reduce boost fluctuations while enabling storing cold start NOx emissions for later reduction.

US Patent:

8225597, Jul 24, 2012

Filed:

Sep 30, 2008

Appl. No.:

12/242450

Inventors:

James W. Girard - Vienna, AT
Giovanni Cavataio - Dearborn MI, US
Christine Kay Lambert - Dearborn MI, US
Rachel Alison Snow - Belleville MI, US

Assignee:

Ford Global Technologies, LLC - Dearborn MI

International Classification:

F01N 3/00

US Classification:

60286, 60274, 60295, 60301, 60303, 422169, 422177, 4232135, 4232391, 4232392

Abstract:

A system and method for NOx reduction is described, with a catalytic unit including a first zeolite catalyst with a first NOx conversion performance in a first temperature range and a second NOx conversion performance, lower than said first NOx conversion performance, in a second temperature range. The catalytic unit also comprises a second zeolite catalyst with a third NOx conversion performance, lower than said first NOx conversion performance, in the first temperature range and a fourth NOx conversion performance, higher than said second and third NOx conversion performances in the second temperature range, said first temperature range being higher than said second temperature range. The system further includes a controller configured to adjust an amount of reducing agent added to the NOx reducing system responsive to a temperature of the catalytic unit.