Low octane fuel for gasoline compression ignition
OwnerDavid M. McCanninventor
Life of this patent
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Abstract
The present invention provides an automotive fuel injection system for a compression ignition engine, comprising a fuel injector configured to receive a fuel having an octane rating between 87 and −30 and configured to meter the fuel into the compression ignition engine, and a heater coupled to the fuel injector and configured to heat the fuel injector such that the fuel is heated to a predetermined minimum temperature, whereby the ignition delay of the fuel is reduced below a predetermined maximum ignition delay.
Claims18
A fuel injection system for a compression ignition engine, comprising:
- a fuel injector configured to receive a fuel having an octane rating between 87 and −30 and configured to meter the fuel into the compression ignition engine;
- and
- a heater coupled to the fuel injector and configured to heat the fuel injector such that the fuel is heated to a predetermined minimum temperature, whereby the ignition delay of the fuel is reduced below a predetermined maximum ignition delay.
A fuel for a compression ignition engine, comprising:
- a hydrocarbon fuel mixture having an octane rating between 87 and −30 and having an ignition delay that is less than a predetermined maximum ignition delay when heated to a predetermined minimum temperature and ignited through compression ignition in the compression ignition engine.
An apparatus, comprising:
- a fuel injector configured to receive a fuel having an octane rating between 87 and −30 and configured to meter the fuel into the compression ignition engine;
- and
- a heater coupled to the fuel injector and configured to heat the fuel injector such that the fuel is heated to a predetermined minimum temperature, whereby the ignition delay of the fuel is reduced below a predetermined maximum ignition delay;
- wherein the fuel is in a liquid phase when heated to the predetermined minimum temperature and when the fuel is metered into the compression ignition engine.
A fuel for a compression ignition engine, comprising:
- a hydrocarbon fuel mixture having an octane rating between 87 and −30 and having an ignition delay that is less than a predetermined maximum ignition delay when heated to a predetermined minimum temperature and ignited through compression ignition in the compression ignition engine;
- wherein the hydrocarbon fuel mixture comprises pump gasoline mixed with a predetermined amount of a diesel fuel.
Dependencies are inferred from the claim text.