if they're going to bend the rules enough to put an alternator on the buggy,
THEY'd be better off buying some suitably sized solar panels to charge those
batteries during the day when not in use. I'm afraid by the time you geared
the alternator up with pulleys or gears, you'd have quite the drag on that
wheel. A typical GM self exciting alternator needs to spin about 2000 rpm
to get anything useful done.


steve


wrote in message
...
I live near an Amish community. They are required to use lights on
their horse drawn buggies at night. They use 12V marine batteries
which last about 7 to 10 hours. Then they have the non-Amish
neighbors charge them, or use a gas generator. I was talking to one
of them and he said he would like to connect a car alternator to the
wheels. I told him that seems doable. That got me thinking. Wiring
a delco with built in regulator is easy. There are two problems.

1. Mounting it so a pulley can be connected to the wooden spoke wheel
hub. I can sort of see a means to attach a belt pulley, but the belt
would have to connect to a shaft or it would be outside too far.

2. Alternators will not charge until they reach a specific RPM. I
doubt the buggy wheels would reach that. This means a gear assembly
would be needed to increase the rpm. I also heard that some tractor
alternators charge at a lower RPM, so I have to check into that.

Anyone have any suggestions? What could I steal a simple gear unit
from? How do I attach a pulley to a wooden hub, spoke wheel? Has
anyone ever done anything like this?

I'm having fun with this project....

Alvin