ReconRat Posted October 8, 2017 Report Share Posted October 8, 2017 (edited) http://www.foxnews.com/auto/2017/10/04/cummins-developing-revolutionary-new-diesel-engine-for-u-s-army.html?cmpid=prn_military&comp=1199467398560&rank=0 Interesting. No intake/exhaust head. Three diesel 2-stroke inline cylinder bores, with upper and lower piston sets. Two crankshafts connected by gearing. I assume the two crankshafts rotate opposite of each other. Target is 600hp, 21 percent reduction in thermal rejection, along with a 50 percent increase in power density and a 13 percent jump in fuel efficiency, compared to the existing engines. I think I want to see a 4 bore, 8 piston, short stroke miniature diesel engine producing around 100hp. Or leave it at 6 pistons, just make it smaller. edit: Duh... I would assume the two cranks both rotate the same direction. As that would be only one intermediate gear between them. It doesn't appear the cranks are close enough to each other to allow direct gearing of the cranks, which would be two cranks rotating opposite of each other. Now on a smaller engine with a shorter stroke, could be something else. Edited October 10, 2017 by ReconRat Quote Link to comment Share on other sites More sharing options...
serpentracer Posted October 9, 2017 Report Share Posted October 9, 2017 (edited) I wish diesel would die off in anything non super HD(below an F450 and construction equipment for example). they stink so bad it burns my sinuses and throat. everyone takes the def stuff off and pollute like crazy recon I'm not sure if this is what you're looking for, https://blog.caranddriver.com/peeved-by-vws-diesel-malfeasance-chevys-new-diesel-engine-may-be-your-salvation/ Edited October 9, 2017 by serpentracer Quote Link to comment Share on other sites More sharing options...
Casper Posted October 10, 2017 Report Share Posted October 10, 2017 8 hours ago, serpentracer said: I wish diesel would die off in anything non super HD(below an F450 and construction equipment for example). they stink so bad it burns my sinuses and throat. everyone takes the def stuff off and pollute like crazy recon I'm not sure if this is what you're looking for, https://blog.caranddriver.com/peeved-by-vws-diesel-malfeasance-chevys-new-diesel-engine-may-be-your-salvation/ My truck doesn’t stink at all. 2015 F250 Quote Link to comment Share on other sites More sharing options...
ReconRat Posted October 10, 2017 Author Report Share Posted October 10, 2017 Wiki history of opposed piston engines: https://en.wikipedia.org/wiki/Opposed-piston_engine Quote Link to comment Share on other sites More sharing options...
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