J
JemmaUK
Guest
Having looked at the Victa based machine on another forum I had a thought...
My personal opinion is that machine is more akin to a supercharged engine than a turbo. The general drawback from a supercharger is that it takes a percentage of the power from the engine in order to give back more. However in this case it seems to be exhaust powered.
Now given that alot of these machines are used in areas where they are borderline legal at best - something that sounds like a squadron of Mustangs warming up on the dispatch apron - isnt going to be exactly sotto-voce
So how do you get the power without all the tuning and twiddling and general complicatednesses?
Simple. Use a turbo electric combination drive. In a standard turbo installation the exhaust pressure drives a turbine in the exhaust that pressurizes the intake - which makes for fueling problems and mixture finnickyness - not to mention that the general size of the engines makes it borderline at best.
How about taking the intake compression stage away and running an electric generator off the shaft. Electrical power from this is taken away from the genset into a controller and hence to hub motors/lights etc.
Basically you are getting electrical power using a side effect of combustion in the IC engine which means better performance from the bike - lowered petroil consumption, less engine wear and better performance since electrical motive power will be available from the second the engine fires. If a battery is also fitted it could be possible to 'trail in' the IC engine using the electric to get up speed..
Just a thought..
Jemma xx
My personal opinion is that machine is more akin to a supercharged engine than a turbo. The general drawback from a supercharger is that it takes a percentage of the power from the engine in order to give back more. However in this case it seems to be exhaust powered.
Now given that alot of these machines are used in areas where they are borderline legal at best - something that sounds like a squadron of Mustangs warming up on the dispatch apron - isnt going to be exactly sotto-voce
So how do you get the power without all the tuning and twiddling and general complicatednesses?
Simple. Use a turbo electric combination drive. In a standard turbo installation the exhaust pressure drives a turbine in the exhaust that pressurizes the intake - which makes for fueling problems and mixture finnickyness - not to mention that the general size of the engines makes it borderline at best.
How about taking the intake compression stage away and running an electric generator off the shaft. Electrical power from this is taken away from the genset into a controller and hence to hub motors/lights etc.
Basically you are getting electrical power using a side effect of combustion in the IC engine which means better performance from the bike - lowered petroil consumption, less engine wear and better performance since electrical motive power will be available from the second the engine fires. If a battery is also fitted it could be possible to 'trail in' the IC engine using the electric to get up speed..
Just a thought..
Jemma xx