Invention Grant
US08091347B2 Exhaust gas purification apparatus, internal combustion engine comprising the same, and particulate filter restoring method
有权
废气净化装置，包括该排气净化装置的内燃机和微粒过滤器的还原方法
- Patent Title: Exhaust gas purification apparatus, internal combustion engine comprising the same, and particulate filter restoring method
- Patent Title (中): 废气净化装置，包括该排气净化装置的内燃机和微粒过滤器的还原方法
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Application No.: US11885240Application Date: 2006-02-10
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Publication No.: US08091347B2Publication Date: 2012-01-10
- Inventor: Michihiko Hara , Akihiro Nishimura , Shusuke Okada , Masato Kitazaki
- Applicant: Michihiko Hara , Akihiro Nishimura , Shusuke Okada , Masato Kitazaki
- Applicant Address: JP Osaka-shi
- Assignee: Yanmar Co., Ltd.
- Current Assignee: Yanmar Co., Ltd.
- Current Assignee Address: JP Osaka-shi
- Agency: Edwards Wildman Palmer LLP
- Priority: JP2005-054243 20050228; JP2005-129836 20050427
- International Application: PCT/JP2006/302359 WO 20060210
- International Announcement: WO2006/092946 WO 20060908
- Main IPC: F01N3/00
- IPC: F01N3/00
Abstract:
In an embodiment of an exhaust gas purification apparatus, when an accumulation amount of particulate matter in a DPF (33) 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 (24) provided for an air intake pipe (21) of the engine, and a heating operation is executed by an electric heater (34) provided upstream from the DPF (33), thereby increasing the exhaust gas temperature to the restoration operable temperature to start a restoration operation of the DPF (33).
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