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:
Aug. 30, 2011
Filed:
Aug. 31, 2006
Hisaki Torisaka, Hino, JP;
Hisaki Torisaka, Hino, JP;
Hino Motors, Ltd., Hino-shi, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
A method for forced regeneration of a catalytic regenerative particulate filter is disclosed. An oxidation catalyst is arranged in front of the particulate filter incorporated in the exhaust pipe. When the exhaust temperature measured between the oxidation catalyst and the filter is lower than a first preset temperature and is equal or more than a second preset temperature lower than the first preset temperature, post injection is added at non-ignition timing following the main injection of the fuel near the compression upper dead center to conduct fuel addition. When the exhaust temperature exceeds the first preset temperature, the post injection is stopped and fuel is directly injected into the exhaust pipe upstream of the oxidation catalyst to conduct the fuel addition. Thus, the particulate filter can be regenerated more efficiently and in shorter time.