David L Winn

US Patent:

20130192214, Aug 1, 2013

Filed:

Jan 31, 2012

Appl. No.:

13/362736

Inventors:

Ognyan N. Yanakiev - Birmingham MI, US
David E. Winn - Birmingham MI, US
Eric M. Hall - Rochester Hills MI, US
Christopher P. Musienko - Waterford MI, US

Assignee:

GM GLOBAL TECHNOLOGY OPERATIONS LLC - Detroit MI

International Classification:

F01N 3/023
G01M 15/10

US Classification:

60295, 73 2333

Abstract:

A control method for monitoring a soot sensor of an exhaust treatment system is provided. The control method includes: determining when regeneration has completed; comparing soot sensor data to an estimated soot data based on the determining; and generating a message based on the comparing.

US Patent:

20150037219, Feb 5, 2015

Filed:

Aug 1, 2013

Appl. No.:

13/956956

Inventors:

- Detroit MI, US
David E. Winn - Birmingham MI, US

Assignee:

GM GLOBAL TECHNOLOGY OPERATIONS LLC - Detroit MI

International Classification:

F01N 3/28

US Classification:

422171

Abstract:

An after-treatment component for receiving an exhaust stream from an internal combustion engine comprises a vessel having a first end, a second end, and an intermediate section. The vessel defines an inlet port and an outlet port. The inlet port is in fluid communication with an inlet diffuser disposed within the vessel. The inlet diffuser is in fluid communication with the inlet port and with a diesel oxidation catalyst disposed within the vessel. The diesel oxidation catalyst is in fluid communication with the inlet diffuser and with a transfer duct. The transfer duct is in fluid communication with the diesel oxidation catalyst and with an intermediate diffuser disposed within the vessel. The intermediate diffuser is in fluid communication with the transfer duct and with a catalyzed filter disposed within the vessel. The catalyzed filter is in fluid communication with the intermediate diffuser and with the outlet port.