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gumby79 · 04-02-2016, 08:46 PM

50% of3300w free/wasted energy is still a benefit for a un engendered off the shelf prototype device. This reduces the cost of build . The power loss is the rpm buffer alowing more common slower motors to be used
In the Edf ideas the power path is: exhaust gas to , exducer/shaft/inducer ,to air ,to Edf fan,smoothing or elminating the pulse issue. With a properly engineered stator befor and after the properly engineered fan blade the % could go up and if you stack 3-5 uinits @50% you are getting more out of evry drop of fule.
As for proper size on a direct drive non-edf ,a VGT or waste gate to control voltage /RPM , and as you stated oversized would be good. The parts for 700°f do not exist yet most only have 200°c limmit. This limmits us to the intake side of the turbo. On the diesel example the turbocharger would be up streem, smoothing the pulses on intake or exhaust. For the header idea the fan was powered before the pulse to create a vacuum @the valve.then would change to gen set mode as the presser changed ,all ready @ operating speed.
4 different ideas were conveyed. 1) blow through form inducer to free air , no pulse. 2) blow through from inducer to engine,(not recommend for prototype ) no pulse . 3) blow through after the turbo, no pulse. 4) in a non turbo system yes pulses are fast and short. this is why it would need to be @speed at the start of the pulse hence the power application part of the idea.

The trick is going to be keeping the bits and pices of a failed prototype from going through the engine causing a totle loss . I for one don't have $5000 laying around for each prototype failure . That is why the slightly off topic ideas.

1 more thing this could bepart of the answer to a cost-effective Turbo Jet APU ( Auxiliary Power Unit ) made from an old /new turbo. Look up turbocharger jet on You Tube. Normally the reduction box cost makes this idea cost prohibitive. The number of uses are more than imaginable.

I for one am glad the power hungry Rc world exist they push The envalope and get better equipment. That we can then throw in a non-standard application for cheep,compared to the R&D that gose Into devloping a ultra high speed BLDC motor.
They did the same with batteries.

.Gumby stay flexible.

04-02-2016, 08:46 PM	#16 (permalink)
gumby79 Master EcoModder Join Date: Dec 2014 Location: Butte, Montana Posts: 725 little jona - '91 Dodge D 250 first gen cummins LE Team Streamliner 90 day: 23.4 mpg (US) Little Jona airo modded - '91 Dodge RAM 3/4 TON D 250 2×4 AUTO Pickups Team Cummins 90 day: 18.5 mpg (US) The Salted Hound Jenny. - '87 Dodge Ram 50/D-50 5sp 4X4 90 day: 20.24 mpg (US) Jona Allison aero - '91 Dodge Ram D-250 Le 90 day: 20.76 mpg (US) Thanks: 208 Thanked 427 Times in 278 Posts	To pulse or not. 50% of3300w free/wasted energy is still a benefit for a un engendered off the shelf prototype device. This reduces the cost of build . The power loss is the rpm buffer alowing more common slower motors to be used In the Edf ideas the power path is: exhaust gas to , exducer/shaft/inducer ,to air ,to Edf fan,smoothing or elminating the pulse issue. With a properly engineered stator befor and after the properly engineered fan blade the % could go up and if you stack 3-5 uinits @50% you are getting more out of evry drop of fule. As for proper size on a direct drive non-edf ,a VGT or waste gate to control voltage /RPM , and as you stated oversized would be good. The parts for 700°f do not exist yet most only have 200°c limmit. This limmits us to the intake side of the turbo. On the diesel example the turbocharger would be up streem, smoothing the pulses on intake or exhaust. For the header idea the fan was powered before the pulse to create a vacuum @the valve.then would change to gen set mode as the presser changed ,all ready @ operating speed. 4 different ideas were conveyed. 1) blow through form inducer to free air , no pulse. 2) blow through from inducer to engine,(not recommend for prototype ) no pulse . 3) blow through after the turbo, no pulse. 4) in a non turbo system yes pulses are fast and short. this is why it would need to be @speed at the start of the pulse hence the power application part of the idea. The trick is going to be keeping the bits and pices of a failed prototype from going through the engine causing a totle loss . I for one don't have $5000 laying around for each prototype failure . That is why the slightly off topic ideas. 1 more thing this could bepart of the answer to a cost-effective Turbo Jet APU ( Auxiliary Power Unit ) made from an old /new turbo. Look up turbocharger jet on You Tube. Normally the reduction box cost makes this idea cost prohibitive. The number of uses are more than imaginable. I for one am glad the power hungry Rc world exist they push The envalope and get better equipment. That we can then throw in a non-standard application for cheep,compared to the R&D that gose Into devloping a ultra high speed BLDC motor. They did the same with batteries. .Gumby stay flexible.