Hey guys,
most of you will know im an engineer, and I have a wee project you may be interested in.
I am currently developing a boundary-layer turbine that will be used to pump water, but can compress air too, and in a unit the size of a 10 pack of cdr's can make 40psi easily at 3k rpm. I am still working on the prototype at work but I was thinking it would make a ****** good supercharger, as it takes minimal force to run it (im developing it to pump out a lagoon of 1,000,000 gallons of water that usually takes a 100kw pump (73bhp) to do, with only 4kw of power driving my turbine design.
If it turns out to be viable, I would have it manufactured as an add-on blower, and beleive it or not, a 1" (25mm) scale model was able to produce 20psi with a power input of 0.18kw (0.13 bhp) so it would seem to be the ideal machine for increasing an engines output without sucking engine power to run it. It has no real internal resistance to flow, and needs no dump valve, as it isnt a reaction or impulse turbine like conventional turbochargers. It doesnt stall when the outlet is blocked!
Obviously airflow in cfm is important in car turbine design, and pressure is not the only factor, but it will be designed to accomodate the airflow requirements of the engine and still produce the correct pressure, early trials have shown the turbine can reach rotational speeds of 120,000 rpm with no damage, and so 6k from an engine is a walk in the park and may not even need a pressurised oil supply.
(as a sideline project, im making a gas-turbine jet engine from an old frontera 2.2 tdi Garret T15 turbocharger, using diesel as fuel, a fire extinguisher as a combustion chamber, an injector from an audi TDI 130, and a glowplug from the same.....watch this space!)
anyway - my supercharger will have almost no lag, instant boost, mbc control (ball & spring valve) for max pressure setting (5psi is safe for NA cars) and its only 150mm (6") across by 40mm (1.6") thick. Driven by an auxiliary belt, it could be fitted to any car by just changing the shape of the outlet hose end.
Just thought id gauge the interest from a good band of car enthusiasts like your selves.....
Comments welcome!
most of you will know im an engineer, and I have a wee project you may be interested in.
I am currently developing a boundary-layer turbine that will be used to pump water, but can compress air too, and in a unit the size of a 10 pack of cdr's can make 40psi easily at 3k rpm. I am still working on the prototype at work but I was thinking it would make a ****** good supercharger, as it takes minimal force to run it (im developing it to pump out a lagoon of 1,000,000 gallons of water that usually takes a 100kw pump (73bhp) to do, with only 4kw of power driving my turbine design.
If it turns out to be viable, I would have it manufactured as an add-on blower, and beleive it or not, a 1" (25mm) scale model was able to produce 20psi with a power input of 0.18kw (0.13 bhp) so it would seem to be the ideal machine for increasing an engines output without sucking engine power to run it. It has no real internal resistance to flow, and needs no dump valve, as it isnt a reaction or impulse turbine like conventional turbochargers. It doesnt stall when the outlet is blocked!
Obviously airflow in cfm is important in car turbine design, and pressure is not the only factor, but it will be designed to accomodate the airflow requirements of the engine and still produce the correct pressure, early trials have shown the turbine can reach rotational speeds of 120,000 rpm with no damage, and so 6k from an engine is a walk in the park and may not even need a pressurised oil supply.
(as a sideline project, im making a gas-turbine jet engine from an old frontera 2.2 tdi Garret T15 turbocharger, using diesel as fuel, a fire extinguisher as a combustion chamber, an injector from an audi TDI 130, and a glowplug from the same.....watch this space!)
anyway - my supercharger will have almost no lag, instant boost, mbc control (ball & spring valve) for max pressure setting (5psi is safe for NA cars) and its only 150mm (6") across by 40mm (1.6") thick. Driven by an auxiliary belt, it could be fitted to any car by just changing the shape of the outlet hose end.
Just thought id gauge the interest from a good band of car enthusiasts like your selves.....
Comments welcome!