发明申请
US20060102146A1 Fuel management system for variable anti-knock agent octane enhancement of gasoline engines
失效
燃油管理系统,用于汽油发动机可变防爆剂辛烷值增强
- 专利标题: Fuel management system for variable anti-knock agent octane enhancement of gasoline engines
- 专利标题(中): 燃油管理系统,用于汽油发动机可变防爆剂辛烷值增强
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申请号: US11229755申请日: 2005-09-19
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公开(公告)号: US20060102146A1公开(公告)日: 2006-05-18
- 发明人: Daniel Cohn , Leslie Bromberg , John Heywood
- 申请人: Daniel Cohn , Leslie Bromberg , John Heywood
- 主分类号: F02D43/00
- IPC分类号: F02D43/00 ; F02D41/14 ; F02M25/14
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.