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Patent Searching and Data


Title:
REGENERATION METHOD FOR EXHAUST GAS CLEANING FILTER AND COMPUTER PROGRAM PRODUCT
Document Type and Number:
WIPO Patent Application WO/2004/076828
Kind Code:
A1
Abstract:
A method of regenerating an exhaust gas cleaning filter (22) by removing soot collected by the exhaust gas cleaning filter (22), characterized by comprising a step for estimating the accumulated amount of soot accumulated on the filter (22) based on the pressure loss of the filter (22) between the exhaust gases on the upstream side and the downstream side of the filter (22), a step for variably controlling the temperature of the exhaust gas as regenerative gas supplied to the filter (22) according to the accumulated amount of soot estimated in the estimation step, and a step for supplying the regenerative gas to the filter for burning the soot accumulated on the filter (22).

Inventors:
IIDA TOMOHIRO (JP)
Application Number:
PCT/JP2004/002289
Publication Date:
September 10, 2004
Filing Date:
February 26, 2004
Export Citation:
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Assignee:
NGK INSULATORS LTD (JP)
IIDA TOMOHIRO (JP)
International Classes:
F02D45/00; F01N3/02; F01N3/023; F01N9/00; F02D41/02; F02D41/04; F02D41/14; F01N13/02; F02B37/00; F02M25/07; (IPC1-7): F01N3/02
Foreign References:
JPH08170522A1996-07-02
JPH01127016A1989-05-19
JPH01131814U1989-09-07
JP2001073748A2001-03-21
Attorney, Agent or Firm:
Nakamura, Tomoyuki c/o Miyoshi International Patent Office (Toranomon Kotohira Tower 2-8, Toranomon 1-chom, Minato-ku Tokyo, JP)
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