Invention Grant
- Patent Title: Electrically heated particulate filter with reduced stress
- Patent Title (中): 电加热微粒过滤器，减轻应力
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Application No.: US11956722Application Date: 2007-12-14
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Publication No.: US08388741B2Publication Date: 2013-03-05
- Inventor: Eugene V. Gonze
- Applicant: Eugene V. Gonze
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Main IPC: B01D46/00
- IPC: B01D46/00 ; B01D50/00 ; B01D24/00 ; B01D39/14 ; B01D39/06
Abstract:
A system comprises a particulate matter (PM) filter comprising an inlet for receiving exhaust gas. A zoned heater is arranged in the inlet and comprises a resistive heater comprising N zones, where N is an integer greater than one. Each of the N zones comprises M sub-zones, where M is an integer greater than one. A control module selectively activates one of the N zones to initiate regeneration in downstream portions of the PM filter from the one of the N zones and deactivates others of the N zones.
Public/Granted literature
- US20120192717A1 ELECTRICALLY HEATED PARTICULATE FILTER WITH REDUCED STRESS Public/Granted day:2012-08-02
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