> other vehicles with this engine.) The problem I foresee is how to > govern > the engine to run at a constant 3000 rpm in order to maintain a stable > voltage and frequency under varying load. Can the existing MW pump be > converted to operate in constant rpm mode?
Probably, I think the tradeoff between constant-rpm and constant-torque (if you will) is set by spring ratios, but finding someone who knows enough about it to actually make that conversion may be difficult. You might contact your local Bosch pump shop to see if they can help. The one here said they only saw such pumps every couple of years, however, and had little practical experience with them. They offered to have me send mine out to some shop in CA! (Cummins/Dodge 24-valve rotary pumps, on the other hand, they work on all day every day...) The IP in the Frankenheap (vacuum-operated) seems to be a 'tractor' pump already, it definitely drives a bit differently than most other cars. The cruise control system could be adapted, but I'm sure the PID feedback loop constants are all wrong for that mode. I personally would be more comfortable dinking with one of those than the guts of the IP, your mileage may vary. It would be better too, if you planned to have the engine as a spare for one of your rides. Less modifications to undo. The speed control doesn't need to be all that elaborate to be practical, my Hercules just has a flyweight governor that runs the throttle plate. If all you need is 10kW you'd probably be better served with the 1500 RPM 4-pole generator head. Quieter, and probably much thriftier. Such heads are generally much better constructed as well, and much more likely to last longer. -- Jim _______________________________________ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
