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Yisun Cheng

from Bloomfield Hills, MI
Age ~59
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Also known as:
Yi Sun Cheng, Yisun C Liu, Wisun Cheng, Yusun C Cheng, Yi-Su Cheng, Cheng Yisun, N Cheng
Phone and address:
1625 Lone Pine Rd, Bloomfield, MI 48302
(248) 432-7502
Related to:
Kaitlyn Liu
Connected to:
Adelaide M Cheng, 42Adoracion S Cheng, 79Aggie Cheng, 51Alain Cheng, 72Alex Y Cheng, 49Alexandra W Cheng, 56Alice M Cheng, 61Anderson L Cheng, 34Angelo S Cheng, 65Annie Y Cheng, 43

Yisun Cheng Phones & Addresses

  • 1625 Lone Pine Rd, Bloomfld Hls, MI 48302 (248) 432-7502
  • Bloomfield Hills, MI
  • 3486 Honeysuckle Ct, Ann Arbor, MI 48103 (734) 668-4814
  • 1586 Murfin Ave, Ann Arbor, MI 48105
  • Rochester, NY
  • 3486 Honeysuckle Ct #106, Ann Arbor, MI 48103 (734) 330-1585

Work

Position: Production Occupations

Education

Degree: Bachelor's degree or higher

Publications

Us Patents

Method For The Reduction Of Noand Nhemissions

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US Patent:
7485273, Feb 3, 2009
Filed:
Mar 9, 2007
Appl. No.:
11/684064
Inventors:
Haren S. Gandhi - West Bloomfield MI, US
John Vito Cavataio - Dearborn MI, US
Robert Henry Hammerle - Franklin MI, US
Yisun Cheng - Ann Arbor MI, US
Assignee:
Ford Global Technologies, LLC - Dearborn MI
International Classification:
B01D 53/56
B01D 53/92
B01D 53/94
F01N 3/08
F01N 3/10
US Classification:
4232132, 4232135, 4232137, 4232391, 60274, 60282, 60299, 60302
Abstract:
This catalyst system simultaneously removes ammonia and enhances net NOconversion by placing an NH—SCR catalyst formulation downstream of a lean NOtrap. By doing so, the NH—SCR catalyst adsorbs the ammonia from the upstream lean NOtrap generated during the rich pulses. The stored ammonia then reacts with the NOemitted from the upstream lean NOtrap—enhancing the net NOconversion rate significantly, while depleting the stored ammonia. By combining the lean NOtrap with the NH—SCR catalyst, the system allows for the reduction or elimination of NHand NOslip, reduction in NOspikes and thus an improved net NOconversion during lean and rich operation.

Catalyst System For The Reduction Of Noand Nhemissions

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US Patent:
7640730, Jan 5, 2010
Filed:
Mar 9, 2007
Appl. No.:
11/684240
Inventors:
Haren S. Gandhi - West Bloomfield MI, US
John Vito Cavataio - Dearborn MI, US
Robert Henry Hammerle - Franklin MI, US
Yisun Cheng - Ann Arbor MI, US
Assignee:
Ford Global Technologies, LLC - Dearborn MI
International Classification:
F01N 3/00
US Classification:
60297, 60274, 60286, 60301, 60311, 4232135, 423237, 4232391, 422169, 422171, 422177
Abstract:
This catalyst system simultaneously removes ammonia and enhances net NOconversion by placing an NH—SCR catalyst formulation downstream of a lean NOtrap. By doing so, the NH—SCR catalyst adsorbs the ammonia from the upstream lean NOtrap generated during the rich pulses. The stored ammonia then reacts with the NOemitted from the upstream lean NOtrap—enhancing the net NOconversion rate significantly, while depleting the stored ammonia. By combining the lean NOtrap with the NH—SCR catalyst, the system allows for the reduction or elimination of NHand NOslip, reduction in NOspikes and thus an improved net NOconversion during lean and rich operation.

Catalyst System For The Reduction Of Nox And Nhemissions

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US Patent:
7674743, Mar 9, 2010
Filed:
Dec 1, 2008
Appl. No.:
12/325787
Inventors:
Haren Sakarai Gandhi - West Bloomfield MI, US
John Vito Cavataio - Dearborn MI, US
Robert Henry Hammerle - Franklin MI, US
Yisun Cheng - Ann Arbor MI, US
Assignee:
Ford Global Technologies, LLC - Dearborn MI
International Classification:
B01D 53/56
B01D 53/94
B01J 23/10
B01J 23/38
B01J 23/745
US Classification:
502302, 502304, 502325, 502340, 502344, 502349, 50252712, 50252713, 4232132, 4232135, 4232137, 4232391, 4232392
Abstract:
This catalyst system simultaneously removes ammonia and enhances net NOx conversion by placing an NH—SCR catalyst formulation downstream of a lean NOx trap. By doing so, the NH—SCR catalyst adsorbs the ammonia from the upstream lean NOx trap generated during the rich pulses. The stored ammonia then reacts with the NOx emitted from the upstream lean NOx trap-enhancing the net NOx conversion rate significantly, while depleting the stored ammonia. By combining the lean NOx trap with the NH—SCR catalyst, the system allows for the reduction or elimination of NHand NOx slip, reduction in NOx spikes and thus an improved net NOx conversion during lean and rich operation.

Emission Scr Noaftertreatment System Having Reduced Sogeneration And Improved Durability

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US Patent:
8062601, Nov 22, 2011
Filed:
Oct 26, 2010
Appl. No.:
12/912095
Inventors:
Yisun Cheng - Ann Arbor MI, US
Clifford Norman Montreuil - Livonia MI, US
Giovanni Cavataio - Dearborn MI, US
Douglas Allen Dobson - Ypsilanti 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, 60295, 60302, 4232392
Abstract:
An exemplary emission treatment system for reducing gases from the exhaust of an engine includes an exhaust passage for transporting the exhaust from the engine. A selective catalytic reduction (SCR) catalyst is disposed within the passage, and an oxidation catalyst is disposed in the passage upstream of the SCR catalyst. The oxidation catalyst has noble metal, with at least 90 wt. % of the metal comprising palladium (Pd).

Reduction Of Particulate, Nox, And Ammonia Emissions

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US Patent:
8209955, Jul 3, 2012
Filed:
Apr 7, 2010
Appl. No.:
12/755987
Inventors:
Karen Marie Adams - Ann Arbor MI, US
Yisun Cheng - Ann Arbor MI, US
Giovanni Cavataio - Dearborn MI, US
Assignee:
Ford Global Technologies, LLC - Dearborn MI
International Classification:
F01N 3/00
US Classification:
60285, 60274, 60276, 60297, 60301, 60311
Abstract:
A method for controlling emissions from an engine includes reducing trapped nitrogen oxides to ammonia on an LNT catalyst while concurrently oxidizing soot accumulated on the LNT catalyst, and, flowing the ammonia so formed to an SCR catalyst.

Catalyst System For The Reduction Of Noand Nhemissions

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US Patent:
8240132, Aug 14, 2012
Filed:
Mar 9, 2007
Appl. No.:
11/684246
Inventors:
Haren S. Gandhi - West Bloomfield MI, US
John Vito Cavataio - Dearborn MI, US
Robert Henry Hammerle - Franklin MI, US
Yisun Cheng - Ann Arbor MI, US
Assignee:
Ford Global Technologies, Inc. - Dearborn MI
International Classification:
F01N 3/00
US Classification:
60286, 60274, 60295, 60301, 422171, 422177, 422180, 4232155, 4232391
Abstract:
This catalyst system simultaneously removes ammonia and enhances net NO, conversion by placing an NH-SCR catalyst formulation downstream of a lean NOtrap. By doing so, the NH-SCR catalyst adsorbs the ammonia from the upstream lean NOtrap generated during the rich pulses. The stored ammonia then reacts with the NOemitted from the upstream lean NOtrap—enhancing the net NOconversion rate significantly, while depleting the stored ammonia. By combining the lean NOtrap with the NH-SCR catalyst, the system allows for the reduction or elimination of NHand NOslip, reduction in NOspikes and thus an improved net NOconversion during lean and rich operation.

Urea-Resistant Catalytic Units And Methods Of Using The Same

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US Patent:
8404202, Mar 26, 2013
Filed:
May 25, 2012
Appl. No.:
13/480672
Inventors:
Yisun Cheng - Ann Arbor MI, US
Yinyan Huang - Northville MI, US
Christine Kay Lambert - Dearborn MI, US
Assignee:
Ford Global Technologies, LLC - Dearborn MI
International Classification:
B01D 53/94
B01J 33/00
B01J 37/00
F01N 3/10
US Classification:
4232132, 60299, 60301, 50252712
Abstract:
According to at least one aspect of the present invention, a urea-resistant catalytic unit is provided. In at least one embodiment, the catalytic unit includes a catalyst having a catalyst surface, and a urea-resistant coating in contact with at least a portion of the catalyst surface, wherein the urea-resistant coating effectively reduces urea-induced deactivation of the catalyst. In at least another embodiment, the urea-resistant coating includes at least one oxide from the group consisting of titanium oxide, tungsten oxide, zirconium oxide, molybdenum oxide, aluminum oxide, silicon dioxide, sulfur oxide, niobium oxide, molybdenum oxide, yttrium oxide, nickel oxide, cobalt oxide, and combinations thereof.

Urea-Resistant Catalytic Units And Methods Of Using The Same

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US Patent:
8207084, Jun 26, 2012
Filed:
Jun 23, 2009
Appl. No.:
12/489703
Inventors:
Yisun Cheng - Ann Arbor MI, US
Yinyan Huang - Northville MI, US
Christine Kay Lambert - Dearborn MI, US
Assignee:
Ford Global Technologies, LLC - Dearborn MI
International Classification:
B01J 23/00
B01J 21/00
B01J 20/00
B01J 29/00
B01J 37/00
US Classification:
502259, 502 64, 502 65, 502 66, 502 73, 502 74, 502260, 502263, 502302, 502305, 502308, 502309, 502311, 502314, 502315, 502321, 502322, 502323, 502326, 502327, 502332, 502335, 502337, 502349, 502350, 502351, 502353, 502354, 502355, 502415, 502439
Abstract:
According to at least one aspect of the present invention, a urea-resistant catalytic unit is provided. In at least one embodiment, the catalytic unit includes a catalyst having a catalyst surface, and a urea-resistant coating in contact with at least a portion of the catalyst surface, wherein the urea-resistant coating effectively reduces urea-induced deactivation of the catalyst. In at least another embodiment, the urea-resistant coating includes at least one oxide from the group consisting of titanium oxide, tungsten oxide, zirconium oxide, molybdenum oxide, aluminum oxide, silicon dioxide, sulfur oxide, niobium oxide, molybdenum oxide, yttrium oxide, nickel oxide, cobalt oxide, and combinations thereof.
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Yisun Cheng from Bloomfield Hills, MI, age ~59 Get Report