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:
Jul. 19, 2016
Filed:
Jan. 26, 2012
Keita Naito, Sakai, JP;
Toshio Nakahira, Sakai, JP;
Yoshikazu Takemoto, Sakai, JP;
Takashi Onishi, Sakai, JP;
Keita Naito, Sakai, JP;
Toshio Nakahira, Sakai, JP;
Yoshikazu Takemoto, Sakai, JP;
Takashi Onishi, Sakai, JP;
KUBOTA Corporation, Osaka-shi, Osaka, JP;
Abstract
An engine exhaust treatment device is capable of combusting PM accumulated in a DPF or activating an exhaust purification catalyst even immediately after engine startup or at the time of light load operation. A combustible gas supply passage () communicates with an exhaust passage () on an upstream of a combustion catalyst (). An air supply unit () and an ignition unit () are provided in this supply passage and interlocked with a control unit (). Where a temperature of the exhaust is lower than a predetermined temperature, the control unit supplies air () to a combustible gas by the air supply unit () and causes ignition of the combustible gas by the ignition unit (), so as to cause flame combustion of the combustible gas. The temperature of the exhaust () in the exhaust passage () is increased by heat of this flame combustion.