Invention Grant
- Patent Title: Exhaust gas recirculation device of internal combustion engine
- Patent Title (中): 内燃机排气再循环装置
-
Application No.: US12681846Application Date: 2009-03-26
-
Publication No.: US08171918B2Publication Date: 2012-05-08
- Inventor: Yoshihiro Okada , Shigeki Miyashita
- Applicant: Yoshihiro Okada , Shigeki Miyashita
- Applicant Address: JP Toyota-shi
- Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee Address: JP Toyota-shi
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2008-084929 20080327
- International Application: PCT/IB2009/005076 WO 20090326
- International Announcement: WO2009/118622 WO 20091001
- Main IPC: F02B47/08
- IPC: F02B47/08 ; F02B47/00

Abstract:
An exhaust gas recirculation device (50) of an internal combustion engine (1) includes an EGR passage (51) linking an exhaust passage (6) and an intake passage (3) of the internal combustion engine, an EGR valve (54) that blocks the EGR passage when closed, an EGR catalyst (52) that is provided between a connection portion with the exhaust passage (6) in the EGR passage and an installation position of the EGR valve and that purifies an exhaust gas flowing in the EGR passage. The exhaust gas recirculation device performs exhaust gas recirculation control by which the EGR valve is opened and the exhaust gas flowing in the exhaust passage is recirculated to the intake passage via the EGR passage. The EGR catalyst is arranged in the vicinity of the connection portion (55) in the EGR passage.
Public/Granted literature
- US20100205941A1 EXHAUST GAS RECIRCULATION DEVICE OF INTERNAL COMBUSTION ENGINE Public/Granted day:2010-08-19
Information query