Internal-combustion engines – Charge forming device – Auxiliary air or oxygen added to combustible mixture
Patent
1997-08-07
1999-04-06
Okonsky, David A.
Internal-combustion engines
Charge forming device
Auxiliary air or oxygen added to combustible mixture
123 1A, F02M 2300
Patent
active
058904760
ABSTRACT:
The fuel injection nozzle (10) includes a nozzle tip (16) that is formed in the shape of a substantially symmetrical double-sided wing having a leading edge (40) for facing the oncomning air stream passing through the air inlet manifold of an internal combustion engine. The arcuate walls (46 and 48) of the nozzle tip diverge on opposite sides of the cord line (44), and the internal conduit (22) guides the liquid nitrous oxide to move through the nose (50) of the nozzle tip and impinge with the flow of fuel moving through the adjacent internal conduit (24). A zone of low pressure is induced by the air movement (42) passing about the wing-shaped nozzle tip at a position behind the leading edge (40) of the nozzle tip, and the nitrous oxide tends to change states from liquid to gas as it emerges from the internal conduit (22) and moves through the exit port (52). This displaces the area where the nitrous oxide changes state from liquid to gas, so as to reduce the likelihood of forming frost and ice on the surfaces of the nozzle.
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