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Codger · 02-02-2008, 02:16 PM

Thanks Brian.
I have not looked at the "Air -Electric Drive" thread for a while. Seemed to be a lack of consensus as to the utility/reality of that system.
The Dynacam at least has been shown to work. Last night I realised that I hadn't heard anything about it for a while so looked back and found this old thread.

" I wonder which arrangement might last longer, the sinusoidal cam/crankshaft of the Dyna-Cam verses the “trilobate” (three lobed) cams of the Revetec??"

I've thought about this as well in regards to the Dynacam. In conventional diesel engines the maximum stress/wear points in the system have long ago been identified and dealt with, more or less, by materials/lubricant developments. I don't know if there are higher forces present between any of the faces in the Dynacam or the Revetec than have already been dealt with in conventional diesels or even if the materials/lubricants are really issues.
I would be surprised if some of the major manufacturers of engines have not built a mule or three of these engines and come to their own conclusions. The chances of that information being available outside those companies is slim to none.
The "not invented here" factor as a reason for not looking at different technologies is for the most part a thing of the past. I've heard the conspiratorial "bury the technology" story too many times and now just refer to the investments in Ballard that the automotive industry has made to zero that one.

02-02-2008, 02:16 PM	#18
Codger YF Wisdom Dept. Join Date: May 2005 Location: Western Canada Posts: 874	Thanks Brian. I have not looked at the "Air -Electric Drive" thread for a while. Seemed to be a lack of consensus as to the utility/reality of that system. The Dynacam at least has been shown to work. Last night I realised that I hadn't heard anything about it for a while so looked back and found this old thread. " I wonder which arrangement might last longer, the sinusoidal cam/crankshaft of the Dyna-Cam verses the “trilobate” (three lobed) cams of the Revetec??" I've thought about this as well in regards to the Dynacam. In conventional diesel engines the maximum stress/wear points in the system have long ago been identified and dealt with, more or less, by materials/lubricant developments. I don't know if there are higher forces present between any of the faces in the Dynacam or the Revetec than have already been dealt with in conventional diesels or even if the materials/lubricants are really issues. I would be surprised if some of the major manufacturers of engines have not built a mule or three of these engines and come to their own conclusions. The chances of that information being available outside those companies is slim to none. The "not invented here" factor as a reason for not looking at different technologies is for the most part a thing of the past. I've heard the conspiratorial "bury the technology" story too many times and now just refer to the investments in Ballard that the automotive industry has made to zero that one.