Internal-combustion engines – Charge forming device – Exhaust gas used with the combustible mixture
Reexamination Certificate
2011-01-11
2011-01-11
Cronin, Stephen K (Department: 3747)
Internal-combustion engines
Charge forming device
Exhaust gas used with the combustible mixture
C123S568110, C123S568150, C123S568170, C123S568180, C123S568200, C123S568220, C123S568260, C060S605100, C060S605200
Reexamination Certificate
active
07866306
ABSTRACT:
A control apparatus of an EGR control valve has an EGR control valve has an exhaust gas recirculation passage to circulate exhaust gas of an combustion engine from an exhaust gas passage to an intake air passage. A measurement unit measures a flow rate of EGR gas flowing in the exhaust gas recirculation passage, and a controller receives an input from the measurement unit and closes the EGR control valve if the EGR-gas flow rate is smaller than a predetermined threshold value when the EGR gas is flowing from the exhaust side to the intake side of the internal combustion engine.
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Hoshika Hiroaki
Kashio Kaori
Ohata Eiichiro
Sukegawa Yoshihiro
Yamaoka Shiro
Cronin Stephen K
Crowell & Moring LLP
Hitachi , Ltd.
Najmuddin Raza
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