hedge hog
ArboristSite Guru
yes I seem to be failing.
so lets look at the very basic's of how a strato engine works and go from there.
the fresh air fuel charge enters the crank case through a normal port the same as any other piston ported engine, other then it has a richer air fuel ratio then 14/1.
the strato ports open at close to the same time as the intake port. the fresh air is drawn down the transfer ports filling them with fresh air.
this all happens on the compression stroke.
on the power stroke.
exhaust port opens releasing pressure.
then the transfers open purging the cylinder with fresh air, the rich fuel charge comes in late in the cycle and mixes with the remaining fresh air trapped in the cylinder. now the air fuel ratio is close to 14/1.
There was a first generation with 2 butterfly’s and generation 2
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