Internal-combustion engines – Charge forming device – Exhaust gas used with the combustible mixture
Reexamination Certificate
2005-06-02
2008-08-05
Wolfe, Jr., Willis R (Department: 3747)
Internal-combustion engines
Charge forming device
Exhaust gas used with the combustible mixture
C123S399000, C123S478000, C123S568110, C123S568120, C060S605200
Reexamination Certificate
active
07406959
ABSTRACT:
An engine control system includes an EGR device10which connects an exhaust passage Ex and an intake passage I and has an EGR valve; an intake throttle valve41placed in the intake passage I; and an engine control unit which is provided with an engine operation data calculator A1accumulating mileages of a vehicle or an engine operation period, a fuel injection controller A2controlling a fuel injection amount and a fuel injection timing, an EGR controller A3controlling an opening of the EGR valve; a throttle valve controller A4controlling an opening of the intake throttle valve; and an EGR passage cleaning controller A5which delays a fuel injection timing Tn, increases an opening β g of the EGR valve, and reduces an opening θ s of the intake throttle valve when the total mileage or the total operation period calculated by the engine operation data calculator becomes equal to a predetermined threshold.
REFERENCES:
patent: 5546915 (1996-08-01), Isobe
patent: 6209515 (2001-04-01), Gotoh et al.
patent: 6212881 (2001-04-01), Takahashi et al.
patent: 7111455 (2006-09-01), Okugawa et al.
patent: 7198039 (2007-04-01), Takemoto et al.
patent: 7246485 (2007-07-01), Ohki et al.
patent: 7281529 (2007-10-01), Lew et al.
patent: 7284544 (2007-10-01), Hatano
patent: 2006/0272625 (2006-12-01), Wang
patent: 2007/0084206 (2007-04-01), Lew et al.
patent: 2833653 (2003-06-01), None
patent: 8061156 (1996-03-01), None
patent: 2000097017 (2000-04-01), None
patent: 2000186631 (2000-07-01), None
patent: 2001159311 (2001-06-01), None
patent: 2001303928 (2001-10-01), None
patent: 2002309987 (2002-10-01), None
patent: 2003184593 (2003-07-01), None
Kondo Nobuhiro
Murata Minehiro
Takahashi Yoshinori
Takeda Yoshinaka
Tsutsui Yasuhiro
Jacobson & Holman PLLC
Mitsubishi Fuso and Bus Corporation
Wolfe, Jr. Willis R
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