Re: P.M. alternator
Posted by HH56 On 2017/8/29 11:22:18
Just an update to the PM alternator idea. Here are a couple of in progress photos. The generator has not had the new brushes installed yet.
Acquired the 6v Chrysler generator from Dell and mounted a small 12v 20 amp alternator on the back in place of the PS pump. Generator was kept absolutely stock so the PS pump can go back if desired.
Whether I ever get around to putting the thing on the car is another question but at least it is now an option. If it happens, am thinking a maintenance free 12v battery under the car will work the AC and any modern 12v accessories that might be wanted. 20 amps should be more than enough to keep that battery charged. It does require an external regulator but that is a small flat package that can go next to the battery.
The Chrysler generator has a 3/4 shaft while the Packard is 5/8. Made the wide belt pulley from scratch rather than destroy a Packard pulley. The fan is a stock aftermarket alternator part. That pulley is aluminum for now. If it goes on the car I may need to find a machinist to make one out of steel.
The original plan was to mount a stock alternator to the generator so it could be easily replaced in case it failed and made a bracket to that end The more I looked at that version the more undignified and out of place the arrangement seemed like it would look in the car. Bit the bullet and revised the mount and modified the alternator to fit. I would have made the mount flush to the generator end to cover the gap but decided the generator ventilation would be compromised. There is provision for the alternator to draw air but there are no vent holes in front so no idea how much it needs. All it has is a dozen or so coils of wire on an iron form with magnets spinning above them. Rather than cut the threaded mounting ear off the alternator decided to keep it in case a secondary support bracket is needed.
Overall, I believe the second version looks much better and being mounted low in the car is less likely to be that noticeable. The second mount also reduced the overall length to 14 inches which nicely fits the space available.
Attach file:
(69.71 KB)
(128.58 KB)
Acquired the 6v Chrysler generator from Dell and mounted a small 12v 20 amp alternator on the back in place of the PS pump. Generator was kept absolutely stock so the PS pump can go back if desired.
Whether I ever get around to putting the thing on the car is another question but at least it is now an option. If it happens, am thinking a maintenance free 12v battery under the car will work the AC and any modern 12v accessories that might be wanted. 20 amps should be more than enough to keep that battery charged. It does require an external regulator but that is a small flat package that can go next to the battery.
The Chrysler generator has a 3/4 shaft while the Packard is 5/8. Made the wide belt pulley from scratch rather than destroy a Packard pulley. The fan is a stock aftermarket alternator part. That pulley is aluminum for now. If it goes on the car I may need to find a machinist to make one out of steel.
The original plan was to mount a stock alternator to the generator so it could be easily replaced in case it failed and made a bracket to that end The more I looked at that version the more undignified and out of place the arrangement seemed like it would look in the car. Bit the bullet and revised the mount and modified the alternator to fit. I would have made the mount flush to the generator end to cover the gap but decided the generator ventilation would be compromised. There is provision for the alternator to draw air but there are no vent holes in front so no idea how much it needs. All it has is a dozen or so coils of wire on an iron form with magnets spinning above them. Rather than cut the threaded mounting ear off the alternator decided to keep it in case a secondary support bracket is needed.
Overall, I believe the second version looks much better and being mounted low in the car is less likely to be that noticeable. The second mount also reduced the overall length to 14 inches which nicely fits the space available.
Attach file:
(69.71 KB)
(128.58 KB)
This Post was from: https://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?post_id=195355