biggkidd
CTW Expert
A World Away!!!
Posts: 226
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Post by biggkidd on Mar 8, 2008 10:40:50 GMT -5
Hey Ron, Thanks for the link. I need to find one on the east coast I guess. They want almost as much for shipping as for the engine. I will keep looking around and see what I can find. Its still not bad $2000 for an engine that will last a life time. I may try and take some electrical classes so I can follow what needs to be done. Most of this comes out in GREEK to me. Wish I could find someone local to help who knows what they are doing but needs a strong back and week mind. I learn more hands on than with a book. Ed, Yes Ron blows me away with all this stuff but I am learning. It will either work or I will have a shocking good time. LOL KIDD
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psj12
CTW Member
KAMA 554
Posts: 93
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Post by psj12 on Mar 9, 2008 9:26:20 GMT -5
RONMAR, are you using a flat or serpentine belt or did you machine a V belt groove in the flywheel?
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Post by Ronmar on Mar 9, 2008 15:31:00 GMT -5
RONMAR, are you using a flat or serpentine belt or did you machine a V belt groove in the flywheel? I am using an 8 groove serpentine belt, but only because it was a good deal. A 6 groove belt would work just fine for this 6HP/3KW application and is usually less expensive. The generator end pully is solid(to add mass) and has 8 grooves milled into it. On the flywheel end, the belt just lays flat on the smooth flywheel surface(no grooves on flywheel). Because of the geometry between the 23.5" flywheel and 8.25" generator pulley, the belt is in contact with approximatly 60" of flywheel surface around it's circumference. The micro v's on the belt are flat on the points, like a regular v belt is, so they provide plenty of contact area and friction in this application. It also has far less rolling friction than a traditional V belt does. That is probably why you don't really see the traditinal "V" in auto's anymore. The micro v is probably the most efficient way to couple a generator head to a listeroid, and probably one of the main reasons, you can achieve in the neighborhood of .125 gallons per KW/HR out of one of these sets. I have seen one or two generator setups where they have used the traditional "V" around the surface of the flywheel also, with just the flat iner surface of the belt in contact with the flywheel. Again, plenty of surface area for this on the flywheel side, but the smaler generator end would require multiple belts/pullys to have enough friction, and matching belts is a real pain. Another one that comes to mind had a micro v powering the generator head, and a traditional v powering a salvaged auto alternator off the same flywheel. An alternator with a 2.75" pulley would run at about 5500 RPM powered from a 23.5" listeroid flywheel at 650 RPM. Ron
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