Hi all, In 1975 I installed a mil surplus diesel in a 3/4 T pickup. Ended up putting about 5000 hrs on that rig. Never did anything heavier than 27,000 GVW ... (with 55 hp at the flywheel) ... big grunt.
Injection pumps, especially the inline ones are very reliable. If I were to fool with that kind of thing today I'd work on dynamic timing; i.e servo the rotation of the pump to get the optimum timing curve vs both rpm and load. Less smoke and a bit more efficiency. I suppose you could actually rotate the shaft of the pump with a servo but I was thinking about just moving the pump a few degrees (maybe 30) to adjust timing. Having said that injection pumps are noisy. Just listen to one on the test stand when it is being calibrated. Most of the click-click at idle is the pump. Maybe the electro- mechanical would be quieter but I wouldn't bet on it. You still need enough pressure to atomize the fuel. (~1200 - 1500 psi) HTH Dave On Nov 29, 2007, at 6:44 PM, Ray Henry wrote: > On Thu, 2007-11-29 at 21:31 -0500, John Kasunich wrote: >> The number of things that can go wrong in a PC is far more than in a >> simple microcontroller based system. >> >> To be honest, I'd stick with a mechanical injection pump - and I'm an >> electrical engineer! Mechanical things just seem more robust to me. > > I know the feeling but I was thinking about one class of motors > that ran > at NAMES a few years ago. They used solenoids to drive the valves. I > thought progressive valve and injection timing was pretty neat. That > was not done with the EMC of the day, but could have been. > > To paraphrase someone, when EMC2 is the only tool you've got handy, > every problem begins to look like motion. And EMC2 is darn handy. > > Rayh > > > > > ---------------------------------------------------------------------- > --- > SF.Net email is sponsored by: The Future of Linux Business White Paper > from Novell. From the desktop to the data center, Linux is going > mainstream. Let it simplify your IT future. > http://altfarm.mediaplex.com/ad/ck/8857-50307-18918-4 > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------- SF.Net email is sponsored by: The Future of Linux Business White Paper from Novell. From the desktop to the data center, Linux is going mainstream. Let it simplify your IT future. http://altfarm.mediaplex.com/ad/ck/8857-50307-18918-4 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
