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Diesel particulate filter regeneration via resistive surface heating

A particle filter, particle technology, applied in the direction of machines/engines, electronic control of exhaust treatment devices, mechanical equipment, etc., can solve problems such as harmful exhaust system components, higher temperature excursions, etc.

Active Publication Date: 2012-01-11
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this approach results in higher temperature excursions than required, which can be detrimental to exhaust system components including PF

Method used

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  • Diesel particulate filter regeneration via resistive surface heating
  • Diesel particulate filter regeneration via resistive surface heating
  • Diesel particulate filter regeneration via resistive surface heating

Examples

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Embodiment Construction

[0018] The following description is merely illustrative in nature and does not limit the application or uses of the invention. It should be understood that throughout the drawings, corresponding reference numerals indicate the same or corresponding parts and features. As used herein, the term module refers to an application-specific integrated circuit (ASIC), an electronic circuit, a processor (shared, dedicated, or group) and memory that executes one or more software or firmware programs, combinational logic circuits, and and / or other suitable components that may provide the described functionality.

[0019] now refer to figure 1 , schematically illustrates a typical diesel engine system 10 according to the present invention. It should be understood that diesel engine system 10 is merely illustrative in nature and that the zoned heated particulate filter regeneration system described herein may be used in various engine systems that perform particulate filtration. Such en...

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PUM

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Abstract

An exhaust system that processes exhaust generated by an engine is provided. The system includes: a particulate filter (PF) that filters particulates from the exhaust wherein an upstream end of the PF receives exhaust from the engine; and a grid of electrically resistive material that is applied to an exterior upstream surface of the PF and that selectively heats exhaust passing through the grid to initiate combustion of particulates within the PF.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of US Provisional Application Serial No. 60 / 786059 filed March 24,2006. The disclosures of the aforementioned applications are hereby incorporated by reference into this application. [0003] Statement of Government Rights [0004] Certain subject matter of this application was developed under contract number DE-FC-04-03AL67635 awarded by the Department of Energy. The US Government has certain rights in this invention. technical field [0005] The present invention relates to methods and systems for heating particulate filters. Background technique [0006] The statements in this section merely provide background information related to the present disclosure and may not constitute prior art. [0007] Diesel engines are typically more efficient than gasoline engines due to the increased compression ratio and higher energy density of diesel fuel. The diesel combustion cycle pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01N3/027
CPCF01N9/002F01N3/035F01N3/027Y02T10/47F01N2240/16Y02T10/40
Inventor E·V·贡泽F·阿门特
Owner GM GLOBAL TECH OPERATIONS LLC