Invention Grant
- Patent Title: Exhaust gas recirculation apparatus of an internal combustion engine and control method thereof
- Patent Title (中): 内燃机废气再循环装置及其控制方法
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Application No.: US11996388Application Date: 2007-01-25
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Publication No.: US07895838B2Publication Date: 2011-03-01
- Inventor: Tomoyuki Ono
- Applicant: Tomoyuki Ono
- Applicant Address: JP Aichi-ken
- Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee Address: JP Aichi-ken
- Agency: Sughrue Mion, PLLC
- Priority: JP2006-018554 20060127
- International Application: PCT/IB2007/000170 WO 20070125
- International Announcement: WO2007/085944 WO 20070802
- Main IPC: F02B33/44
- IPC: F02B33/44 ; F02M25/07 ; F02M25/06 ; F01N3/00 ; F01N5/04

Abstract:
An exhaust gas recirculation apparatus of an internal combustion engine includes a turbocharger provided with a turbine in an exhaust passage and a compressor in an intake passage, a low pressure EGR passage which connects the exhaust passage downstream of the turbine with the intake passage upstream of the compressor, a high pressure EGR passage which connects the exhaust passage upstream of the turbine with the intake passage downstream of the compressor; an exhaust gas control catalyst provided in the exhaust passage downstream of the turbine and upstream of the low pressure EGR passage; and EGR gas amount changing device for simultaneously changing amounts of EGR gas flowing through the low pressure EGR passage and the high pressure EGR passage such that a temperature of the exhaust gas control catalyst is within a target range.
Public/Granted literature
- US20080295514A1 Exhaust Gas Recirculation Apparatus of an Internal Combustion Engine and Control Method Thereof Public/Granted day:2008-12-04
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