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:
Jan. 10, 2012
Filed:
Feb. 10, 2006
Michihiko Hara, Osaka, JP;
Akihiro Nishimura, Osaka, JP;
Shusuke Okada, Osaka, JP;
Masato Kitazaki, Osaka, JP;
Michihiko Hara, Osaka, JP;
Akihiro Nishimura, Osaka, JP;
Shusuke Okada, Osaka, JP;
Masato Kitazaki, Osaka, JP;
Yanmar Co., Ltd., Osaka-shi, JP;
Abstract
In an embodiment of an exhaust gas purification apparatus, when an accumulation amount of particulate matter in a DPF () exceeds a predetermined amount and an exhaust gas temperature of an engine is lower than a restoration operable temperature, an intake air amount reducing operation is executed by an air intake throttling device () provided for an air intake pipe () of the engine, and a heating operation is executed by an electric heater () provided upstream from the DPF (), thereby increasing the exhaust gas temperature to the restoration operable temperature to start a restoration operation of the DPF ().