Resumes
Resumes
Sara Michels Phones & Addresses
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Dunlap, IL
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New Braunfels, TX
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Germantown Hills, IL
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Peoria, IL
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Edelstein, IL
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Rhinelander, WI
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Waukon, IA
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Spooner, WI
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Decorah, IA
Publications
Us Patents
Ash Detection In Diesel Particulate Filter
View pageUS Patent:
20120017570, Jan 26, 2012
Filed:
Jul 22, 2010
Appl. No.:
12/841308
Inventors:
Vadiraj P. Kulkarni - Dunlap IL, US
Matthew E. Leustek - Metamora IL, US
Sara K. Michels - Metamora IL, US
Rajesh N. Nair - Peoria IL, US
Michael A. Snopko - Washington IL, US
Andrew A. Knitt - Deer Creek IL, US
Matthew E. Leustek - Metamora IL, US
Sara K. Michels - Metamora IL, US
Rajesh N. Nair - Peoria IL, US
Michael A. Snopko - Washington IL, US
Andrew A. Knitt - Deer Creek IL, US
Assignee:
CATERPILLAR INC. - Peoria IL
International Classification:
F01N 11/00
F01N 3/021
F01N 3/021
US Classification:
60277, 60311
Abstract:
Detecting ash in a diesel particulate filter includes receiving data indicative of signal attenuation for ash-responsive and ash-insensitive RF signals transmitted through a diesel particulate filter containing trapped soot and ash. A difference between the RF signals, such as a difference in signal attenuation, may be leveraged to detect a relative ash loading state or a change in relative ash loading state of the diesel particulate filter, and responsively indicate that filter cleaning is needed.