Internal combustion engine

Details Internal combustion engine Internal combustion engine

2008-01-22

2008-01-22

Cronin, Stephen K. (Department: 3747)

Internal-combustion engines

Miscellaneous

Fuels, lubricants and additives

C123S02700A

Reexamination Certificate

active

11497426

ABSTRACT:
There is provided an internal combustion engine that uses a blended fuel consisting of hydrocarbon and alcohol, and can efficiently operate relative to a wide range of required load. The internal combustion engine includes: intake ports4aand4band two injectors5aand5b. The injectors include a first injector5athat injects a hydrocarbon fuel and a second injector5bthat injects an alcohol fuel. An optimum combustion mode is selected according to an operation state, and the ratio of the alcohol is properly adjusted according to the combustion mode. The intake ports includes a first intake port4athat guides the hydrocarbon fuel to an inner peripheral portion of a combustion chamber, and a second intake port4cthat guides the alcohol fuel to an outer peripheral portion of the combustion chamber to control octane number distribution in a cylinder. The internal combustion engine further includes separating means8for adding water to a blended fuel consisting of alcohol and hydrocarbon to separate into the alcohol fuel consisting of the alcohol and the water and the hydrocarbon fuel.

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patent: 2000-213444 (2000-02-01), None
patent: 2001-355471 (2001-12-01), None

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