The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 23, 2003
Filed:
Feb. 15, 2002
Yoshihisa Tashiro, Fujisawa, JP;
Takehito Imai, Fujisawa, JP;
Tsuneo Suzuki, Fujisawa, JP;
Naofumi Ochi, Fujisawa, JP;
Masashi Gabe, Fujisawa, JP;
Isuzu Motors Limited, Tokyo, JP;
Abstract
A diesel particulate filer unit comprising a filter for capturing particulates in the exhaust gas G of an engine E, and a regeneration control means judging the start of the regeneration operation of said filter , according to the comparison between the value measured by exhaust pressure sensors and a predetermined exhaust pressure judgment value &Dgr;Pes, Pes, Res wherein said regeneration control means is configured to estimate the ash accumulated quantity SAsh of ash leaked into the exhaust gas G and accumulated in said filer and correct said exhaust pressure judgment value &Dgr;Pes, Pes, Res for judging the regeneration operation start based on this. Thereby, a diesel particulate filter that can judge the regeneration start timing appropriately, taking accumulation and deposit of ash generated from lubricant oil on the filter into consideration, and remove particulates efficiently all the way preventing the filter from clogging is provided.