Would this work to power a motor?

[S_Beaudry]

Hypetheticly speaking here....

Take a look at the following link at this gas powered generator

http://www.duropower.com/item.asp?PID=58&FID=2&level=1

It seems to be a very good unit, 6 hours of runtime at 1000 watts, and 10 hours of runtime at 500 watts. Seems to be very quiet as well at only 61 decibals.

First, here is my idea with this generator.... build a tow behind trailer for it and run wires to power an electric drive motor for the bicycle or trailer part.

The part I need feedback on is if this thing could power a "DC" motor?

The specifications on this unit says...


1 Pole Single Phase 120V AC & 1 Pole 12V DC Generator

Fully Protected 1 Pole 120V/60Hz Max Current 8.3A AC Output (1×NEMA 5-15R)

1 Pole 12V DC with Max 10A. Battery Charging Cables Included.


Is this enough power for an electric bicycle motor to be ran?

Would I need to convert this in some way to power a motor?

Would I still need to have a battery inline somewhere for the motor?

Should I look at using an "AC" motor instead?


My thoughts on using this would be that...

6 - 10 hours of runtime

very quiet operation

weight is not too bad at 49lbs

could be used as well for a portable generator


Any feedback is welcome...

Regards, Steve

 

[dogman dan]

There is another thread here somewhere, I can't remember which section, about the series hibrid idea. I tried it with a heavier generator and a 4 amp charger. It definitely extended the range, but was so heavy it realllllllly slowed down the trike. Another consideration is how hot does it make the hub, carrying all that weight, and how long can you ride before it melts the hub? Bear in mind that they are designed for batteries that poop out in a half hour at full throttle.

I came to two conclusions, you need at least a 10 or 15 amp charger, so you get that amps in 36 or 48 v. Your generator, though it will put out DC, is only going to give 12v, so 10 amps of 12v is way too little power. The AC side though, could run a big charger, and GREATLY increase range if you had a big enough charger. Those golf cart chargers are nice and heavy too.

The second conclusion was, though expensive, It would work a lot better to simply carry a huge lifepo4 pack, and stop to charge normally. Much like Justin just did on his ride across canada.

Actually three conclusions, In summer at least, my climate is too hot to ride much more than 45 minuites without melting a direct drive hubmotor. So for me It turned out interesting, but not so practical as extending my range by putting the bike on the city bus bike rack.

 

[S_Beaudry]

I would most likely never use it for extended periods of riding of more then an hour or so.

I know riding it for too long would heat things up very hot!

I was thinking of building a trailer with a left over 5/8" or 1" live axle I have from an old go kart project, using high speed bearings as well.

Using an "AC" current motor, how would I control speed?

Thank you for any and all help!

Steve

 

[drewjet]

If you are only riding for an hour you are better off with a larger battery. Less weight, less complication. Make it such that you can add it in parallel with your current battery, then you only carry the extra weight when you need it.

 

[MidniteTweeker]

Would you be better off just using the engine to direct drive the bike?

In terms of energy efficiency, the system you propose would have losses in first converting the mechanical power of the engine into electricity, and then again in converting the electricity back into mechanical power.

MT