Wei Li

Address:

7767 Cambridge St, Houston, TX 77054

VIN:

2T1KR32E37C649591

Make:

TOYOTA

Model:

MATRIX

Year:

2007

US Patent:

6374195, Apr 16, 2002

Filed:

Jun 29, 1999

Appl. No.:

09/342963

Inventors:

Wei Li - Troy MI
Karen Wortham - Livonia MI
John A. George - Chesterfield Township MI

Assignee:

DaimlerChrysler Corporation - Auburn Hills MI

International Classification:

G06F 700

US Classification:

702182, 702183, 702184, 702185, 702188

Abstract:

A method for tracking and monitoring tools in a multi-user environment is provided. The method assigns a unique identification number to each tool which permits the tool to be tracked for purposes of performing operations on the tool, such as periodic performance verification testing and/or preventative maintenance. A user programs the frequency and time at which the operation is to be periodically performed on a tool, such as performance verification testing or preventative maintenance. The method generates routes which enable the operation to be scheduled and performed on selected tools. Data collected from the operation may be uploaded, permitting the method to monitor the performance and/or operation of the tool. In a preferred embodiment, the method compares tool performance to tool operation and calculates tool set-up parameters to tune the performance of the tool to desired levels.

US Patent:

6938412, Sep 6, 2005

Filed:

Aug 7, 2003

Appl. No.:

10/636676

Inventors:

Wei Li - Troy MI, US
David R. Monroe - Bloomfield Hills MI, US

Assignee:

General Motors Corporation - Detroit MI

International Classification:

F01N003/10

US Classification:

60300, 60274, 60285, 60298, 123198 F, 422169, 422177

Abstract:

An apparatus and a method for removing NOx from an exhaust stream of a lean-burn engine during an engine cold start are provided. The apparatus includes a close-coupled LNT coupled to a main LNT by a hollow conduit. NOx from the cold exhaust is initially stored on the close-coupled LNT. As the engine exhaust warms up, the close-coupled LNT reaches its operating temperature and reduces the stored NOx to N. When the temperature of the close-coupled LNT reaches approximately 350 C. , NOx is released from the close-coupled LNT, is absorbed on the main LNT, and is converted to Nduring fuel-rich conditions, The close-coupled LNT can be regenerated after the engine is turned off by providing heat. The released NOx during the regeneration of the closed-coupled LNT is absorbed by the main LNT. The stored NOx on the main LNT can be reduced to Nduring the next vehicle operation.

US Patent:

7553464, Jun 30, 2009

Filed:

Aug 9, 2004

Appl. No.:

10/914362

Inventors:

Jin D. Kim - Dae-Jeon, KR
Wei Li - Troy MI, US
Se H. Oh - Troy MI, US

Assignee:

General Motors Corporation - Detroit MI

International Classification:

C01F 17/00

US Classification:

423263, 502303, 423579, 4236582

Abstract:

A substantially pure phase LaTaOphotocatalyst is prepared by grinding precursors with mixture of at least two different sizes of high-density yttrium-stabilized zirconia balls to a very fine particle size and calcining the ground precursors. The LaTaOphotocatalyst prepared by this method is useful in photolysis of water.

US Patent:

7578455, Aug 25, 2009

Filed:

Aug 9, 2004

Appl. No.:

10/914418

Inventors:

Jin D. Kim - Dae-Jeon, KR
Wei Li - Troy MI, US
Se H. Oh - Troy MI, US

Assignee:

General Motors Corporation - Detroit MI

International Classification:

B02C 17/00

US Classification:

241 5, 423263, 423579, 4236582, 423279, 42359415, 42359416, 4235948, 42359414, 4235949, 4235947, 423598, 241 15, 241 22, 241 30, 241184

Abstract:

A particulate material is ground more efficiently using a mixture of at least two different sizes of yttrium-stabilized zirconia balls. The method facilitates preparation of photocatalysts with high activity.

US Patent:

7625835, Dec 1, 2009

Filed:

Jun 7, 2006

Appl. No.:

11/449037

Inventors:

Wei Li - Troy MI, US
Se H. Oh - Troy MI, US
Jae S. Lee - Pohang, KR
Jum S. Jang - Pohang, KR

Assignee:

GM Global Technology Operations, Inc. - Detroit MI
Pohang University of Science and Technology - Pohang

International Classification:

B01J 27/02
B01J 21/00
B01J 23/00
B32B 5/16
B32B 9/00
B32B 15/02
B32B 17/02
B32B 19/00
B32B 21/02
B32B 23/02
B32B 27/02
C09K 11/54
C09K 11/56
C09K 11/66
C09K 11/77
C09K 11/72
C09K 11/70
C09K 11/02
C01G 23/047

US Classification:

502216, 502242, 502258, 502259, 502350, 428403, 428930, 2523016 S, 2523014 R, 2523016 R, 2523016 F, 977811, 977812, 977813, 423610, 423615, 423616

Abstract:

A composite photocatalyst includes a semiconducting core and a nanoscale particle disposed on a surface of the semiconducting core, wherein the nanoscale particle is an electron carrier, and wherein the photocatalyst is sensitive to visible light irradiation.

US Patent:

7964167, Jun 21, 2011

Filed:

Sep 21, 2009

Appl. No.:

12/563345

Inventors:

Chang H Kim - Rochester MI, US
Wei Li - Troy MI, US
Kevin A Dahlberg - Saline MI, US

Assignee:

GM Global Technology Operations LLC - Detroit MI

International Classification:

B01D 53/56
B01D 53/74
B01D 53/86
B01D 53/94
F01N 3/10

US Classification:

4232132, 4232135, 4232137, 4232391, 423DIG 5, 423DIG 6, 422105, 422177, 422180, 60276, 60299, 60301, 502525

Abstract:

An after-treatment system architecture and method for oxidizing the nitric oxide component of an exhaust stream from a hydrocarbon fueled power source operated with a fuel lean combustion mixture.

US Patent:

8001768, Aug 23, 2011

Filed:

Feb 1, 2008

Appl. No.:

12/024638

Inventors:

David J. Cleary - West Bloomfield MI, US
Calvin K. Koch - Huntington Woods MI, US
Wei Li - Troy MI, US

Assignee:

GM Global Technology Operations LLC - Detroit MI

International Classification:

F01N 3/00
F01N 3/10

US Classification:

60285, 60274, 60287, 60288, 60295, 60301

Abstract:

The disclosure sets forth operating a spark-ignition, direct-fuel injection internal combustion engine equipped with an exhaust aftertreatment system including a lean-NOx reduction catalyst upstream of a second converter element. The engine preferentially operates in one of a homogeneous charge combustion mode and a stratified charge combustion mode based upon temperature of the lean-NOx reduction catalyst. Exhaust gas flow is selectively diverted to the second converter element.

US Patent:

8057767, Nov 15, 2011

Filed:

Aug 10, 2010

Appl. No.:

12/853357

Inventors:

Gongshin Qi - Troy MI, US
Wei Li - Troy MI, US

Assignee:

GM Global Technology Operations LLC - Detroit MI

International Classification:

B01D 53/56
B01D 53/94

US Classification:

4232132, 4232135, 4232391, 4232453, 423247, 60299

Abstract:

Chemical species such as nitrogen oxide (NO), carbon monoxide, and low molecular weight hydrocarbons (e. g. , C-Cand saturated or ethylenically unsaturated) in an oxygen-containing gas stream, such as the exhaust stream from a diesel engine, or other lean burn engine, may be oxidized using a mixture of MnOx with one or more other base metal oxides, with or without palladium. The oxidation is effective at temperatures above about 200 C. to convert about ninety percent or more of the carbon monoxide to carbon dioxide and to consume the hydrocarbons. The oxidation is also effective to convert much of the NO to NO. In general, the mixed base metal oxides may be used as catalysts for the oxidation of nitrogen oxide in hot gas streams containing oxygen. They may optionally be used in a combination with palladium or platinum. But platinum, which is very expensive, does not have to be used in such oxidation reactions.