Spark plugs/injectors

[Clare Snyder]

Danny Barrett wrote:
> 
> Does anyone know if it is possible to get spark plugs with fuel injectors
> built in? I have seen one of the list members write about keeping the intake
> pressure as close to atmospherice as possible (and varying the power/speed
> by the amount of fuel pumped in). There is one problem with this - It is
> very hard to get a reliable combustion from mixtures leaner than 18:1. There
> is a solution to this problem (from what my Thermodynamics textbook says).
> This is by charging the cylinder with a non-uniform mixture. ie: around
> 14.5:1 around the spark plug, and virtually nothiing elsewhere (where
> required). This, it has called "stratified charging." Apparently, engines
> have been successfully developed and run in the laboratory, but not in
> production cars (or at least, we've not seen them...).


Tell Honda it can't be done. They sold a ton of stratified charge CVCC
cars in the early 80's
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