Will something like this be a significant advantage to a rotary?
12-01-2011, 04:34 PM
#1
n00b
Thread Starter
Will something like this be a significant advantage to a rotary?
http://www.federalmogul.com/NR/rdonl..._Spotlight.pdf
I must admit, this is my first rotary experience though I've known enough people through the years that are rotards. If I wasn't full-(extended)warrantied with a maintenance plan, I'd have been more tentative about purchasing something I'm not too familiar with.
With that being said, the new plug tech linked to above is actually being investigated by manufacturers for OEM use. I'm just wondering if these would create an even bigger advantage over conventional plug tech in rotaries than in piston engines considering rotaries generate more power strokes per revolution than a piston engine.
To note: I did an extensive search for "Federal Mogul," "ACIS, and "Corona Ignition" in these forums and didn't get one sniff, so I am going to assume this specific topic has never been discussed.
I must admit, this is my first rotary experience though I've known enough people through the years that are rotards. If I wasn't full-(extended)warrantied with a maintenance plan, I'd have been more tentative about purchasing something I'm not too familiar with.
With that being said, the new plug tech linked to above is actually being investigated by manufacturers for OEM use. I'm just wondering if these would create an even bigger advantage over conventional plug tech in rotaries than in piston engines considering rotaries generate more power strokes per revolution than a piston engine.
To note: I did an extensive search for "Federal Mogul," "ACIS, and "Corona Ignition" in these forums and didn't get one sniff, so I am going to assume this specific topic has never been discussed.
12-01-2011, 04:57 PM
#2
Voids warranties
The description is very vague. From the picture it looks like it is grounding the spark on that little square thing...? How is that square thing grounded?
At first glance it looks like my old Force outboard motor. In that application there is no ground prong like a typical spark plug. In stead, the spark will jump across the combustion chamber and ground on the top of the piston at TDC. I'm intrigued.
At first glance it looks like my old Force outboard motor. In that application there is no ground prong like a typical spark plug. In stead, the spark will jump across the combustion chamber and ground on the top of the piston at TDC. I'm intrigued.
12-02-2011, 06:19 AM
#4
My understanding is that we do indeed have issues with unclean burns which is why the 16X wasn't just dropped into the RX-8 (not even the 16X meets the new European emission laws). Worst case, it would seem useful for cleaning up emissions during a cold start.
12-02-2011, 07:26 AM
#5
meh.
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12-02-2011, 08:12 AM
#8
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12-02-2011, 08:31 AM
#9
It's well known that the wankel, even the Renesis, has a long combustion chamber and a reactant mix that is in much greater motion than a comparable piston engine. Our combustion is known to be cooler and less complete than piston engines which is why, prior to the invention of the 3-way catalyst so many car companies were investigating the wankel. Combined with more surface area for unit displacement, leading to greater losses and you have a recipe for an unclean burn, regardless of AF ratios.
12-02-2011, 08:34 AM
#10
Registered
It's well known that the wankel, even the Renesis, has a long combustion chamber and a reactant mix that is in much greater motion than a comparable piston engine. Our combustion is known to be cooler and less complete than piston engines which is why, prior to the invention of the 3-way catalyst so many car companies were investigating the wankel. Combined with more surface area for unit displacement, leading to greater losses and you have a recipe for an unclean burn, regardless of AF ratios.
12-02-2011, 08:55 AM
#12
It's well known that the wankel, even the Renesis, has a long combustion chamber and a reactant mix that is in much greater motion than a comparable piston engine. Our combustion is known to be cooler and less complete than piston engines which is why, prior to the invention of the 3-way catalyst so many car companies were investigating the wankel. Combined with more surface area for unit displacement, leading to greater losses and you have a recipe for an unclean burn, regardless of AF ratios.
I personally witnessed a two foot diameter fireball emerging from the tail of an FB where the catalytic convertor was removed (it was in the modified class and had been brought to the autocross I was at on a trailer, so no laws were broken as this was not being used on a public street). I felt the heat of said fireball on my face from 25 yards away. If two spark plugs gets it done with no room for improvement, then what was that fireball made of, pixie dust?
12-02-2011, 10:21 AM
#13
I don't know that these are the answer; but I do recall reading that Mazda was supposedly looking into laser ignition for the 16X, from which I take it that there is some room for improvement still to be had by some means, if the rumor is true at least.
12-02-2011, 12:01 PM
#15
Registered
We've seen alternate concept spark plugs before. But this is the first time I've seen something like this from a company I've heard of.
Does their advertising material give any specifics on the "up to 10%" improvement in fuel economy? That's usually the entertaining part about this kind of thing.
Ken
Does their advertising material give any specifics on the "up to 10%" improvement in fuel economy? That's usually the entertaining part about this kind of thing.
Ken
12-02-2011, 01:14 PM
#16
n00b
Thread Starter
We've seen alternate concept spark plugs before. But this is the first time I've seen something like this from a company I've heard of.
Does their advertising material give any specifics on the "up to 10%" improvement in fuel economy? That's usually the entertaining part about this kind of thing.
Ken
Does their advertising material give any specifics on the "up to 10%" improvement in fuel economy? That's usually the entertaining part about this kind of thing.
Ken
There's this also: http://www.freep.com/article/2011120...helan-s-corner
Several automakers in North America, Europe and Asia are testing ACIS. It could be in production as early as 2014 or '15.
Here's an article from the SAE's site: http://www.sae.org/mags/AEI/10216
“The technology enables powertrain engineers to develop more efficient combustion strategies, such as stratified charge, lean burn, and high levels of EGR to reduce fuel consumption and exhaust emissions,” explained Mixell. “We have already recorded fuel consumption improvements of up to 10% on a 1.6-L turbocharged gasoline direct injection engine, and there is potential for further improvement."
Last edited by carrrnuttt; 12-02-2011 at 01:20 PM.
12-02-2011, 04:31 PM
#17
Registered
It will be interesting to see if this works out any better than the "run your car on water" scheme that earned several articles in SAE's magazine a while back.
Ken
Ken
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