axulsuv Posted November 22, 2007 Report Share Posted November 22, 2007 (edited) Just a thought as the world rapidly changes around us ... Last week I saw a commercial on TV for a fuel cell powered Honda civic ! As in it's in the dealers now ! All that is well and GOOD as it's no big deal to make a 4t run on hydrogen , just getting or making the hydrogen is the only issue . But can you make a two stroke run on it with decent performance and durability ???? inquiring minds want to KNOW ???? And I understand that fuel cells =electric motovation , but as I'm sure most of you across the pond already know , mazda is doing quite well with a rotary hydrogen powered RX-8 , and BMW may release a hydrogen fueled car late next year ... I'm wondering about the thermal effects of hydrogen vs. 2t use ? or would it just detonate in the crankcase ? I wonder because the best hydrogen fuel engines so far are direct injected 4ts , eliminates combustion in the intake ... Or could you inject it into the transfer ports and make it work ... hhmmm , I've got a spare running 240 engine in a bare frame , Big fantic fins for cooling ... OK , my mind is wandering now , time to break out the cad program and start playing... Liquid or gas ? decisions decisions !!! Glenn Edited November 22, 2007 by axulsuv Quote Link to comment Share on other sites More sharing options...
copemech Posted November 22, 2007 Report Share Posted November 22, 2007 I am afraid you would have to figure a way to inject something to lubricate the thing! On a wet sump 4T motor it's not a problem! Quote Link to comment Share on other sites More sharing options...
biffsgasgas Posted November 23, 2007 Report Share Posted November 23, 2007 We ran internal combustion engines on gaseous hydrogen in college and found that the flame front was extreemly quick and we had problems getting a full combustion on each stroke because it just wouldnt mix enough in time. Nice thing about gasoline or alchohol is that they burn slow in comparison to other fuels. With direct injection we could control the flame front but blew holes in many a piston. If you get the timing down it might just work but keep your stroke small don't expect a lot of rpm. It is extreemly hot when it burns as well as being volitile and quick. I dont know about 2 stroke but i know that it burns hot enough to take off any oil films which we had in our pistons and cylinder walls in 4 stroke applications. Now a fuel cell powered motorcycle hmmmmm use some Ultra Capicitors and you have something there... --Biff Quote Link to comment Share on other sites More sharing options...
zippy Posted November 23, 2007 Report Share Posted November 23, 2007 Could just go all electric. http://www.killacycle.com/ and a video in action Not sure if this really applies to this thread but hey this bike is cool and I couldn't remember if it was posted here before. Quote Link to comment Share on other sites More sharing options...
atomant Posted November 23, 2007 Report Share Posted November 23, 2007 Could just go all electric.http://www.killacycle.com/ and a video in action Not sure if this really applies to this thread but hey this bike is cool and I couldn't remember if it was posted here before. Great bike - but no brains -- http://www.youtube.com/watch?v=xfVX71YqPuQ...feature=related I'm with you on the development of an electric trials bike. A sort of hybrid downhill bike with the geometry and setup of a trials cycle - with electric power. It is something that I would love to design given the time. I suspect there are top companies on it right now. Quote Link to comment Share on other sites More sharing options...
madcr500 Posted November 23, 2007 Report Share Posted November 23, 2007 I thought fuel cells were quite heavy. Ive never seen one in real life but got that impression. Anyone know what the weight would be of one built small enough for trials? Quote Link to comment Share on other sites More sharing options...
madcr500 Posted November 23, 2007 Report Share Posted November 23, 2007 That was ace I wasn't expecting it to be so fast though. Neither was he!! He looks like he's never done a burnout before. Quote Link to comment Share on other sites More sharing options...
zippy Posted November 23, 2007 Report Share Posted November 23, 2007 AtomAnt Posted Today, 03:18 AM Great bike - but no brains -- http://www.youtube.com/watch?v=xfVX71YqPuQ...feature=related Heard about that one and now I got to see the video. Gotta say "no helmet" was pretty dumb. Quote Link to comment Share on other sites More sharing options...
biffsgasgas Posted November 23, 2007 Report Share Posted November 23, 2007 BTW fuel cells are here but not available to purchase yet. Honda is feeling out the field. Here is some more info. http://www.usatoday.com/money/autos/review...x-clarity_N.htm --Biff Quote Link to comment Share on other sites More sharing options...
copemech Posted November 25, 2007 Report Share Posted November 25, 2007 Now a fuel cell powered motorcycle hmmmmm use some Ultra Capicitors and you have something there... Maybe that is what they need to keep a Montesa from "flaming out" while it throws you over the bars! On the topic, I can see LPG, CNG or hybrid technology, but I think I could come closer to lighting a fire with Zippers collected farts than by producing hydrogen and distributing it! Quote Link to comment Share on other sites More sharing options...
zippy Posted November 25, 2007 Report Share Posted November 25, 2007 copemech Posted Yesterday, 10:27 PM QUOTE Now a fuel cell powered motorcycle hmmmmm use some Ultra Capicitors and you have something there... Maybe that is what they need to keep a Montesa from "flaming out" while it throws you over the bars! On the topic, I can see LPG, CNG or hybrid technology, but I think I could come closer to lighting a fire with Zippers collected farts than by producing hydrogen and distributing it! There is no need to collect. only one will power an entire fleet of bikes. Quote Link to comment Share on other sites More sharing options...
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