Internal-combustion engines – Combustion chamber means combined with air-fuel mixture... – Having a single combustible mixture inlet combined with...
Reexamination Certificate
2005-09-19
2008-11-04
Huynh, Hai H (Department: 3747)
Internal-combustion engines
Combustion chamber means combined with air-fuel mixture...
Having a single combustible mixture inlet combined with...
C123S19800E, C123S00100A
Reexamination Certificate
active
07444987
ABSTRACT:
Fuel management system for efficient operation of a spark ignition gasoline engine. Injectors inject an anti-knock agent such as ethanol directly into a cylinder of the engine. A fuel management microprocessor system controls injection of the anti-knock agent so as to control knock and minimize that amount of the anti-knock agent that is used in a drive cycle. It is preferred that the anti-knock agent is ethanol. The use of ethanol can be further minimized by injection in a non-uniform manner within a cylinder. The ethanol injection suppresses knock so that higher compression ratio and/or engine downsizing from increased turbocharging or supercharging can be used to increase the efficiency of the engine.
REFERENCES:
patent: 4402296 (1983-09-01), Schwarz
patent: 4480616 (1984-11-01), Takeda
patent: 4541383 (1985-09-01), Jessel
patent: 5233944 (1993-08-01), Mochizuki
patent: 5937799 (1999-08-01), Binion
patent: 6076487 (2000-06-01), Wulff et al.
patent: 6287351 (2001-09-01), Wulff et al.
patent: 6298838 (2001-10-01), Huff et al.
patent: 6332448 (2001-12-01), Ilyama et al.
patent: 6508233 (2003-01-01), Suhre et al.
patent: 6513505 (2003-02-01), Watanabe et al.
patent: 6543423 (2003-04-01), Dobryden et al.
patent: 6575147 (2003-06-01), Wulff et al.
patent: 6668804 (2003-12-01), Dobryden et al.
patent: 6725827 (2004-04-01), Ueda et al.
patent: 6990956 (2006-01-01), Niimi
patent: 7159568 (2007-01-01), Lewis et al.
patent: 7178503 (2007-02-01), Brehob
patent: 7188607 (2007-03-01), Kobayashi
patent: 7225787 (2007-06-01), Bromberg et al.
patent: 2002/0014226 (2002-02-01), Wulff et al.
patent: 2006/0102136 (2006-05-01), Bromberg et al.
patent: 2006/0102145 (2006-05-01), Cohn et al.
patent: 2007/0039588 (2007-02-01), Kobayashi
Yuksel et al, Renewabe Energy, vol. 29, issue 7, Jun. 2004, pp. 1181-1191.
Bromberg Leslie
Cohn Daniel R.
Heywood John B.
Choate Hall & Stewart LLP
Huynh Hai H
Massachusetts Institute of Technology
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