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- W618556493 abstract "This short article describes an inexpensive kit which can make a car cleaner and more fuel efficient. The system is a combination of an improved spark plug and ignition system invented by Michael Ward and his company. Combustion Electromagnetics, and a second component, produced by Lean Burn Associates, which recirculates some exhaust gases into the air intake, thus reducing emissions of oxides of nitrogen. The improvement in engine performance is produced by a more powerful spark plug which helps the mixture to start off burning by pumping in more energy (several hundred watts rather than tens of hundreds). Ward's tungsten nickel and iron alloy plug has a ring shaped cavity at the end which is designed so that when a series of spark pulses are fed into it, the sparks propagate round the ring igniting the fuel on a broad circular front. The plug creates a large enough kernel of flame for the combustion to become self propagating. The exhaust system developed by Lean Burn Associates uses an electrically controlled valve to divert varying amounts of exhaust gas into the air intake according to a dilution equation. More exhaust is needed when the engine is under heavy load, less under a light load. This lean burn engine has been assembled in a 1986 US Ford Escort with a 1.9 litre engine. Emissions of nitrogen oxides were reduced to 0.09 grams per kilometre, and hydrocarbon and carbon monoxide emissions were reduced to 35% and 70% respectively below the US emissions standard proposed for the year 2004. The car was also 11 per cent more fuel efficient than a control car in city driving and 8% more efficient in motorway driving." @default.
- W618556493 created "2016-06-24" @default.
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- W618556493 date "1992-10-31" @default.
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- W618556493 title "CARS RUN CLEANER WITH RING OF FIRE" @default.
- W618556493 hasPublicationYear "1992" @default.
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