Internal-combustion engines – Combustion chamber means combined with air-fuel mixture... – Having a single combustible mixture inlet combined with...
Patent
1984-12-21
1986-02-25
Nelli, Raymond A.
Internal-combustion engines
Combustion chamber means combined with air-fuel mixture...
Having a single combustible mixture inlet combined with...
123294, 123280, 123557, F02B 300
Patent
active
045721335
ABSTRACT:
A high compression ratio internal combustion engine operable on a fuel capable of being pressurized and vaporized to pressures above atmospheric pressure and having dual fuel introduction means respectively communicating with dual fuel sources. The first fuel introduction means is a low pressure fuel supply means by which fuel is introduced into the engine at low pressure in a fuel/air ratio mixture lower than which supports self-ignition under the temperatures generated by the compression thereof within the combustion chamber of the engine. A secondary--or auxiliary--fuel supply is provided and is capable of introducing predetermined amounts of only fuel in an atomized state and at elevated pressures greater than the pressure developed on the compression stroke within the combustion chamber. This secondary fuel is introduced into the combustion chamber at elevated pressure--and depending upon the fuel--at elevated temperature, and in amounts sufficient to raise the effective fuel/air ratio within the combustion chamber sufficient to support the self-ignition therein by the elevated temperatures which are compression generated within the combustion chamber.
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