On 6/27/23 10:37, fxkl47BF--- via Emc-users wrote:
i've a hankering to build a gasoline powered battery charger
i attached a crude idea
the motor is the box and the alternator is the cylinder
they are attached with a rigid coupler
auto style alternators have no machined surface to mount
i'm trying to not use a belt or flex coupler
the alternator is hanging with the two vertical rods to prevent rotation
since the direction of rotation is anticlockwise from the alternator end
if the rods are properly placed the torque should lift the alternator
and prevent excess stress on the motor bearings
is this too simple
Not as visualized here. Three problems I do see:
1. most gas engines run slower that an auto alternator is used to, the
typical belt arrangement on a modern engine spins the alternator 2 to 5
times the engine revs. So full amperage will probably not be obtained.
2. Alignment under the vibration of a 1 cylinder IC engine will hammer
the bearings more than the sideways pull of a belt would. Use a flexible
coupling.
3. Voltage regulation is in modern alternators and sucks dead toads thru
soda straws for accuracy, so you may be forced to do your own hunting
for an older alternator with a separate field bolt, and build your own
regulator as the internal one is the main reason for boiling the battery
dry well before its time. I've done that, but I'm also a C.E.T.. I wore
out 4 vehicles back in the 70's to 85's time frame with that same
alternator/battery/regulator transplanted to each vehicle I bought,
starting in -30F weather was never a problem.
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Cheers, Gene Heskett.
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author, 1940)
If we desire respect for the law, we must first make the law respectable.
- Louis D. Brandeis
Genes Web page <http://geneslinuxbox.net:6309/>
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