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One problem with existing diesel engines is the inability of
the fuel mixture to mix adequately with the air for complete
combustion. (A lot of trade-offs are made to achieve this.) I
propose adding a heavy oil fuel into the air intake (as in a
spark-ignited design). A lighter, more flammable
fuel is then
injected into the combustion chamber. This would be superior
to a high-octane spark-ignited design because a far less
flammable fuel could be used in the intake--something that
may not burn reliably with a spark alone. (Nitromethane
comes to mind. I never said this had to be used on the
street.)
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how would this be better than other advancements such as direct injection? Even typical fuel injection does prety well in this regard. |
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Is this not the principle behind using LPG (propane) in diesels? That's baked. |
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Your proposal treats fuel ignition as the only issue to solve.
It isn't. A fuel should be characterized by
1 storing adequate energy by weight and volume
2 readily ignited
3 combustion occurs rapidly enough to accommodate the mechanical cycle. |
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Most mixed fuel proposals suffer badly in implementation on the 3rd aspect. No info is given that makes yours better. |
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