Invention Grant
- Patent Title: Stratified particulate filter regeneration system
- Patent Title (中): 分层微粒过滤器再生系统
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Application No.: US13190573Application Date: 2011-07-26
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Publication No.: US08505284B2Publication Date: 2013-08-13
- Inventor: Jianwen Li , Rahul Mital , Michael V. Taylor , Thomas Larose, Jr. , Thomas J. Sobtzak , Paul Jasinkiewicz , Rebecca J. Darr
- Applicant: Jianwen Li , Rahul Mital , Michael V. Taylor , Thomas Larose, Jr. , Thomas J. Sobtzak , Paul Jasinkiewicz , Rebecca J. Darr
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Current Assignee Address: US MI Detroit
- Agency: Cantor Colburn LLP
- Main IPC: F01N3/00
- IPC: F01N3/00

Abstract:
An exhaust gas treatment system for an internal combustion engine is provided and includes an exhaust gas conduit, a hydrocarbon supply, a particulate filter (“PF”), at least one sensor, a first temperature sensor, a second temperature sensor, and a control module. The PF is in fluid communication with the exhaust gas conduit and has a filter structure for removal of particulates in the exhaust gas. The filter structure has an innermost region and an outermost region. The PF is selectively regenerated during operation of the internal combustion engine. The PF has a stratified temperature structure that causes the particulates trapped at the innermost region of the PF burn off before the particulates trapped in the outermost region of the PF during regeneration. The control module has a memory with an infinite stage temperature control curve stored thereon.
Public/Granted literature
- US20130025266A1 STRATIFIED PARTICULATE FILTER REGENERATION SYSTEM Public/Granted day:2013-01-31
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