发明名称 |
Fuel management system for variable ethanol octane enhancement of gasoline engines |
摘要 |
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.
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申请公布号 |
US7762233(B2) |
申请公布日期 |
2010.07.27 |
申请号 |
US20080329729 |
申请日期 |
2008.12.08 |
申请人 |
MASSACHUSETTS INSTITUTE OF TECHNOLOGY |
发明人 |
COHN DANIEL R.;BROMBERG LESLIE;HEYWOOD JOHN B. |
分类号 |
F02B7/02;F02B13/00;F02M25/14 |
主分类号 |
F02B7/02 |
代理机构 |
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代理人 |
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地址 |
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