DOE Patents Database - Search Results

Patent Title	Inventor(s)	Issue Date	Patent Number
An exhaust system includes a particulate filter (PF) that is disposed downstream from an engine. The PF filters particulates within an exhaust from the engine. A heating element heats particulate matter in the PF. A catalyst substrate or a flow converter is disposed upstream from said heating element. The catalyst substrate oxidizes the exhaust prior to reception by the heating element. The flow converter converts turbulent exhaust flow to laminar exhaust flow prior to reception by the heating element. Shielded regeneration heating element for a particulate filter	Gonze, Eugene V. , Ament, Frank	01/04/2011	7,862,635
A particulate matter (PM) filter includes filter walls having inlet ends and outlet ends. First adjacent pairs of the filter walls define inlet channels. Second adjacent pairs of the filter walls define outlet channels. Outlet end plugs are arranged in the inlet channels adjacent to the output ends. Inlet end plugs arranged in the outlet channels spaced from the inlet ends. Electrically heated particulate matter filter with recessed inlet end plugs	Gonze, Eugene V. , Ament, Frank	02/21/2012	8,118,908
An exhaust system that processes exhaust generated by an engine is provided. The system generally includes a particulate filter (PF) that filters particulates from the exhaust wherein an upstream end of the PF receives exhaust from the engine. A grid of electrically resistive material selectively heats exhaust passing through the upstream end to initiate combustion of particulates within the PF. A hydrocarbon adsorbent coating applied to the PF releases hydrocarbons into the exhaust to increase a temperature of the combustion of the particulates within the PF. Electrically heated particulate filter regeneration using hydrocarbon adsorbents	Gonze, Eugene V. , Paratore, Jr., Michael J. , Ament, Frank	02/01/2011	7,877,987
An exhaust filter system includes a particulate filter (PF) that is disposed downstream from an engine. The PF filters particulates within an exhaust from the engine. A heating element heats particulate matter in the PF. A fastener limits expansion movement of the heating element relative to the PF. DPF heater attachment mechanisms	Gonze, Eugene V. , Ament, Frank , Paratore, Jr., Michael J.	04/26/2011	7,931,715
A control system that controls regeneration of a particulate filter is provided. The system generally includes a regeneration module that controls current to the particulate filter to initiate combustion of particulate matter in the particulate filter. A propagation module estimates a propagation status of the combustion of the particulate matter based on a combustion temperature. A temperature adjustment module controls the combustion temperature by selectively increasing a temperature of exhaust that passes through the particulate filter. Electrically heated particulate filter propagation support methods and systems	Gonze, Eugene V. , Paratore, Jr., Michael J. , Ament, Frank	06/07/2011	7,958,723
A control system that controls regeneration of a particulate filter is provided. The system generally includes a propagation module that estimates a propagation status of combustion of particulate matter in the particulate filter. A regeneration module controls current to the particulate filter to re-initiate regeneration based on the propagation status. Electrically heated particulate filter restart strategy	Gonze, Eugene V. , Paratore, Jr., Michael J. , Ament, Frank	07/12/2011	7,975,469
An exhaust system that processes exhaust generated by an engine has a diesel particulate filter (DPF) that is disposed downstream of the engine and that filters particulates in the exhaust. An electrical heater is disposed upstream of the DPF and selectively heats the exhaust to initiate combustion of the particulates. Heat generated by combustion of particulates in the heater induces combustion of particulates within the DPF. A control module selectively enables current flow to the electrical heater for an initial period of a DPF regeneration cycle, and limits exhaust flow while the electrical heater is heating to a predetermined soot combustion temperature. Electrically heated DPF start-up strategy	Gonze, Eugene V. , Paratore, Jr., Michael J. , Ament, Frank	04/10/2012	8,151,557
An exhaust system that processes exhaust generated by an engine is provided. The system includes: a particulate filter (PF) that is disposed downstream of the engine and that filters particulates from the exhaust; and a grid that includes electrically resistive material that is segmented by non-conductive material into a plurality of zones and wherein the grid is applied to an exterior upstream surface of the PF. Zone heated inlet ignited diesel particulate filter regeneration	Gonze, Eugene V. , Ament, Frank , Paratore, Jr., Michael J.	06/26/2012	8,205,441

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