Diy turboshaft engine

[racket]

Hi Aaron

As barnyard has said, its no big problem , .........I have 4 batteries on my test stand , 2 X 12V in series for 24 volts to the starter , another 12V for relays and ignition , another 12V for oil and fuel pumps , until recently those last couple of 12V batteries were connected in series as well so that I could feed 24V to a PWM on the old fuel pump , but still needed 12V for the oil pump, ignition and relays so simply had them connected to the"first" of the two 12 V batteries.

To charge my batteries I have a couple of 12V chargers and simply uncouple the connecting cable between battery pairs and charge as separate units , then reconnect before use ............LOL, there was a bit of a "birds nest" of wires going every which way.

Cheers
John

[turboron]

John, as you say, our development units can look like "birds nests" of wires and tubes. If we get the time we have good intentions.

Thanks, Ron

[azwood]

I've modified a denzo starter I've just used the motor not the redux box I'm getting 10.900rpm on a small 12v battery. The petrol engine did 7000rpm I don't expect the motor to go full rpm with the fan but as long as it hit 7k it will work.

[azwood]

Has anyone ever used a pelton wheel style arrangement as a power turbine.

[azwood]

Nov 12, 2018 19:02:40 GMT -5 azwood said:

Has anyone ever used a pelton wheel style arrangement as a power turbine.

Or more like a cross flow turbine not sure if fluid flows same as hot gases

[azwood]

Got the blower going it works great it has heaps of power.I'll do a test run soon as soon as I wire everything up also got the Bosch o44 mounted up so that will have ample power too.

[slittlewing]

Nice work!! Was it easy to couple the motor shaft with the impeller? I didn't realise you were permanently mounting it on the kart (thought it would be hand held)

Cheers

Scott

[turboron]

azwood, do yo have a solenoid on the butterfly valve actuator?

Thanks, Ron

[azwood]

Nov 16, 2018 4:42:42 GMT -5 slittlewing said:

Nice work!! Was it easy to couple the motor shaft with the impeller? I didn't realise you were permanently mounting it on the kart (thought it would be hand held)

Cheers

Scott

It wasn't to hard the starter's got bearings at both ends so I just made an be end cap to mount it to the flat plate the extended the shaft

[azwood]

Nov 16, 2018 7:55:07 GMT -5 turboron said:

azwood, do yo have a solenoid on the butterfly valve actuator?

Thanks, Ron

Yeah its a pneumatic one I'm hoping it opens at idle pressure

[azwood]

The blower is really light without the petrol motor so I thought why not just mount it on the kart I used the motor from a go kart starter and the button works good.

[azwood]

A few more things to do still but I did more wireing last night and fitted more gauge's managed to do a test start with the new blower and intake butterfly it went real well starting is all done from the drivers seat now and the blower has more power than before so she fires up real fast.I'm very happy with the result.

[turboron]

azwood, can you provide a closeup of the start blower details?

Thanks, Ron

[azwood]

Nov 21, 2018 21:23:47 GMT -5 turboron said:

azwood, can you provide a closeup of the start blower details?

Thanks, Ron

Yeah sure I'll get all the details for you tonight.

[azwood]

As promised here are the blower details.and here's the kart starter all the electrics come from