Diesel Engine of the Future

[drury]

Just found this from a thread on cumminsforum.com



http://www.americanantigravity.com/documents/MYT-Engine-Interview.pdf

http://www.angellabsllc.com/ (look for the animations!)



No camshaft, no valves, no reciprocating parts, and an incredible power to weigt ratio, and massively reduced vibration. Best of all its a diesel designed by a former drag racer!



The prototype is tiny and is the equivalent of an 850 cubic inch displacement. It's intended to power 18 wheelers. It looks like we could triple that size and fit it in our engine bays! Not sure we could find a transmission to keep up with such a beast though!

 

[JFaughn]

Thats cool , but we probubly will not see it avalable , saw something like it , through this site about a yr ago , it was a differant eng / outfit , but it was a rotory diesel , at least thats what I remember ,
I hate that when you store a lot of conntact info on a computor & then it dies , I'm going to pull the hard drives out of the last to laptons to pull the bookmarks , someday .
With an eng. that small we could have a bed in the ft. & back of the truck .

 

[DogDiesel]

EPA Questions

I did not read any mention of expected full compliance with EPA soot and particulate requirements. Was it there?



Another interesting theory is the Rotating Liner Engine:



http://www.rotatingliner.com/RLE-Article-Final-022404.pdf



http://www.sae.org/technical/papers/2005-01-1653



This technology is still a reciprocating diesel, but exceeds 2007 emmission requirements (in theory) and has incredible longevity.



I still haven't figured out the technology to seal the liner at the head...



Wayne

 

[drury]

They do mention somewhere on there that they are able to control the timing for how long the piston stays at TDC. This allows them to extend the time relative to a conventional piston engine, which supposedly allows for a more complete burn of the fuel and hence lower emissions.

The Excel animation on this page shows the gearing they use for controlling the relative motion of the pistons: http://www.angellabsllc.com/resourse.html

 

[barbwire]

Some body will buy it up and hide it in a cave somewhere , so it wont disrupt the flow of oil money into the pockets of the already rich & greedy. The former drag racer will more than likely disappear from the face of the earth, never to be seen again. All will be forgotten in a while.

But WOW such a concept it is , huh! Oo.

 

[Bluebird]

What can we (TDR) do? ? ?

What do you folks think we can do here at TDR to bring Mr. Morgado's concept to the masses? We already have the "best keep secret on the planet-medium duty" truck in our drivways. Maybe Cummins could buy into this outstanding technology? Okay, am I dreaming here ? I remember the Volvo 3-cylinder car in the late '70's with composite wheels and other light weight stuff, yeah: it died... (until the Geo metro :-laf )



Happy New Year Y'all, Patrick.

 

[rbattelle]

The movement requires that each rotor come to a complete stop momentarily during a revolution. Same thing that happens in a normal reciprocating engine.



I think the MYT is an interesting idea, but I'm not sure about the efficiency. Seems to me it would depend on the acceleration rate of the rotors - the closer to infinity, the higher the efficiency.



It also requires exceptionally precise timing and combustion control in order to be self-sustaining (so that combustion pressure at each combustion chamber exactly balances the chamber on the opposite side of the rotor). Works great if you're motoring the engine with air, but the problems are exponentially higher with real gasses in combustion.



Am I reading it right that they haven't built one that actually combusts?



I'm not poo-pooing it. Even if it never goes anywhere it's a novel idea.



[I swear we discussed this before, but now I can't find the thread... ]



Ryan

 

[CDyksman]

Some body will buy it up and hide it in a cave somewhere , so it wont disrupt the flow of oil money into the pockets of the already rich & greedy. The former drag racer will more than likely disappear from the face of the earth, never to be seen again. All will be forgotten in a while.

But WOW such a concept it is , huh! Oo.

More likely, the inventor and the design will "mysteriously" disappear.

On edit, only read the first line of this post before jumping the gun with my reply.

 

[jwgary]

I did not read any mention of expected full compliance with EPA soot and particulate requirements. Was it there?



Another interesting theory is the Rotating Liner Engine:



http://www.rotatingliner.com/RLE-Article-Final-022404.pdf



http://www.sae.org/technical/papers/2005-01-1653



This technology is still a reciprocating diesel, but exceeds 2007 emmission requirements (in theory) and has incredible longevity.



I still haven't figured out the technology to seal the liner at the head...



Wayne

I remember seeing that RLE head sitting on the mill in the machine shop in the basement of the Mechanical Engineering building at UT. They were working on building it when I was taking a shop class in the fall of 1999.