Internal-combustion engines – Charge forming device – Including exhaust gas condition responsive means
Reexamination Certificate
2006-12-05
2006-12-05
Argenbright, T. M. (Department: 3747)
Internal-combustion engines
Charge forming device
Including exhaust gas condition responsive means
C123S699000
Reexamination Certificate
active
07143756
ABSTRACT:
If the amount of fuel added to exhaust gas becomes excessive as a result of an abnormality of an addition agent supply unit (60), the air-fuel ratio of exhaust as decreases. If an exhaust gas air-fuel ratio obtained from a value output from an A/F sensor (4) remains equal to or smaller than a predetermined value for a predetermined period, an ECU (2) determines that an addition agent supply unit (60) is abnormal. Upon detection of an abnormality of the addition agent supply unit (60), the ECU (2) incrteases an amount of EGR gas recirculated to the intake side by an EGR unit (40), reduces an amount of fuel injection from injectors (11), and restricts an operational state of an engine body (10) to a low-speed/low-load state. Also, the ECU (2) turns a warning lamp (7) on, warns a driver of the abnormality of the addition agent supply unit (60), and makes it possible to pull a vehicle over safely.
REFERENCES:
patent: 5116611 (1992-05-01), Masuoka et al.
patent: 5423203 (1995-06-01), Namiki et al.
patent: 6211273 (2001-04-01), Bru-Magniez et al.
patent: 0 297 505 (1989-01-01), None
patent: 1 174 601 (2002-01-01), None
patent: 1 176 292 (2002-01-01), None
patent: 1 176 295 (2002-01-01), None
patent: 58-47066 (1983-03-01), None
patent: 63-61989 (1988-11-01), None
patent: 2-674 (1990-01-01), None
patent: 2-675 (1990-01-01), None
patent: A 5-302509 (1993-11-01), None
patent: A 6-108828 (1994-04-01), None
patent: 8-512287 (1996-12-01), None
patent: A 10-141048 (1998-05-01), None
patent: 2001-504530 (2001-04-01), None
patent: A 2002-70619 (2002-03-01), None
patent: A 2002-129945 (2002-05-01), None
patent: A 2002-188428 (2002-07-01), None
patent: A 2002-213231 (2002-07-01), None
patent: WO 94/24168 (1994-10-01), None
patent: WO 98/18455 (1998-05-01), None
patent: WO 99/38898 (1998-08-01), None
Cochin et al.; New substituted polymethylenes by free radical polymerization of bulky fumarates and their properties; Polymer, vol. 41, No. 11, pp. 3895-3903; May 2000. See PCT search report.
Kariya Yasuhiro
Kinugawa Masumi
Kojima Daisuke
Sekiguti Kiyonori
Sugiyama Tatsumasa
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