MSD assisted, a tad not competitive but instructive for me
I'd doubt that final point, given the hide-bound limits on advanced ignition imposed for most of the past decade,johnny comelately wrote: ↑02 May 2022, 08:03I dont understand chemistry well enough to have an opinion on the ozone production and fuel interaction with that.
But re NOx all I understand is that in any combustion with air (78% N) the NOx can form but the lower the relevant temp it is less??
One point in all this is that the formula is trying to be road and environment relative, despite the irony
In a sense they have taken it to such an extreme that they are adjusting (conventional) timing within the prechamber spark, to coincide with the pressure rise timing created by the engine rev and mixture points, to arrive at a point of just less than we think of at detonation. In a sense, almost a controlled pre detonation combustion event IMHO.johnny comelately wrote: ↑30 Apr 2022, 23:07The prechamber spark initiation is what gives the predictability and therefore control.NL_Fer wrote: ↑30 Apr 2022, 16:10I don’t see the jets coming. It is just the shockwave from the pre-chamber which travel even faster.johnny comelately wrote: ↑30 Apr 2022, 12:12
Yes, but I think the prechamber jets create the main chamber pressure rise first to "autoignite" the end gases.
It is the control for reliable predictability of the autoignition phase that is key
Consistent timing being one of the challenges with HCCI.
IMHO
Utterly pathetic.johnny comelately wrote: ↑03 May 2022, 02:53MSD assisted, a tad not competitive but instructive for me
Lucky I said it was instructive for me thenJ.A.W. wrote: ↑03 May 2022, 04:45Utterly pathetic.johnny comelately wrote: ↑03 May 2022, 02:53MSD assisted, a tad not competitive but instructive for me
Turning a Wankel rotary piston engine inside out is pretty much a high-tech scam,
fundamentally its architecture precludes 'clean green fuel efficient' usage, & you
need only compare the claimed unit-output/power-density with a current kid's 85cc
2-stroke MX bike.
This one shows how Honda featured its "Activated Radical Combustion" 2-stroke
road-legal dual-purpose bike - before they made a Corporate Ethos call to kill 2T:
Interesting that you think it is a scam. I think the liquid piston design is proper advancement on the rotary based on all the different 3rd parties that have been documenting it. Definitely looking forward to these engines being widely commercialized.J.A.W. wrote: ↑03 May 2022, 04:45Utterly pathetic.johnny comelately wrote: ↑03 May 2022, 02:53MSD assisted, a tad not competitive but instructive for me
Turning a Wankel rotary piston engine inside out is pretty much a high-tech scam,
fundamentally its architecture precludes 'clean green fuel efficient' usage, & you
need only compare the claimed unit-output/power-density with a current kid's 85cc
2-stroke MX bike.
This one shows how Honda featured its "Activated Radical Combustion" 2-stroke
road-legal dual-purpose bike - before they made a Corporate Ethos call to kill 2T:
Why did they do that? Have they solved any of Wankel's issues or are they just moving them around.PlatinumZealot wrote: ↑03 May 2022, 15:48Turning a Wankel rotary piston engine inside out is pretty much a high-tech scam,
The seal dividing the phases is static so the lubrication is easier and more easily cooled.sosic2121 wrote: ↑03 May 2022, 17:43Why did they do that? Have they solved any of Wankel's issues or are they just moving them around.PlatinumZealot wrote: ↑03 May 2022, 15:48Turning a Wankel rotary piston engine inside out is pretty much a high-tech scam,
They still have apex seals. Chamber doesn't have hot and cold side, but piston has. Now there are 3 spark plugs, intakes and exhausts...
Sound is an artefact of the shockwave in the medium through which it transits.johnny comelately wrote: ↑09 May 2022, 22:39Further to the shockwave effect, originally I thought it could be part of the enhancement of inducing compression ignition. But in the lecture it shows a demonstration of using sound waves to extinguish a fire, albeit in completely different environs. I do not understand the linkage between pressure/shock waves and sound waves.