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:
Dec. 27, 2005
Filed:
Nov. 05, 2003
Makoto Ohtake, Yokohama, JP;
Junichi Kawashima, Yokosuka, JP;
Naoya Tsutsumoto, Yokohama, JP;
Terunori Kondo, Yokohama, JP;
Takao Inoue, Yokohama, JP;
Toshimasa Koga, Yokohama, JP;
Makoto Ohtake, Yokohama, JP;
Junichi Kawashima, Yokosuka, JP;
Naoya Tsutsumoto, Yokohama, JP;
Terunori Kondo, Yokohama, JP;
Takao Inoue, Yokohama, JP;
Toshimasa Koga, Yokohama, JP;
Nissan Motor Co., Ltd., Kanagawa, JP;
Abstract
An engine exhaust cleaning device is configured to prevent the temperature of a particulate matter filter (DPF) from rising sharply due to a reduction in the exhaust gas flow rate when a vehicle decelerates and shifts into idling operation during regeneration of the particulate matter filter. During regeneration of the particulate matter filter, the fuel cut (F/C) recovery engine speed used during deceleration is increased and the engine idling speed is increased for a prescribed amount of time when the engine idles.