Posted on 10/19/2005 10:59:55 AM PDT by Jack of all Trades
Insulation?
thx...
Nice try, won't do a thing. The problem is too much area exposed to a relatively cool surface "quenches" the flame and prevents complete combustion. It is not a problem of temperature or heat transfer so much as the dynamic nature of the combustion process. I expect that if you could increase the head temperature by whatever means it might do some good but how do you do that when there is no "head" as such. Insulation may not be practical but air cooling rather then liquid would help, keeping in mind that as operating temperature goes up, lubrication becomes more problematical.
The overall efficiency of an engine is defined by the ratio of absolute temperatures of sink and source. Raising the operating temperature moves you in the right direction but not very far. Ultimately you have to face hot spots leading to pre-ignition and structural problems as materials reach there limits. That still leaves the issue of emissions from incomplete combustion.
Regards,
GtG
Now I can see a problem with that - you don't want to melt the cumbustion chamber, but that sounds like a materials problem.
Regards,
GtG
Thanks for the information. I love this Free Republic, not just for the politics but the knowledge that is held on so many different subjects by so many people. Dan Rather had no idea what was going to hit him when came out with his forgeries last year!
mazda bought the rights. that’s why it was never developed any better.
Ofcause the ring on the piston is very close to touching the bore to use the combustion, they mean a standard IC engine tries to push the piston sideways as it travels up the bore where the revetec cce does not try to do that so much
i’ve seen it, it works, we’ll see how good it is when and if they finally get it into mass production, they have proton on side to give them cars to test it with
doesn’t mean same size less weight, means much smaller lighter engine for same power output ( more efficient)
Exactly what i’m expecting
I’ve wondered about gasoline formulations tho I have no expertise. But - in the true fashion of “the solution to pollution is dilution” mantra I’m reminded of certain GM “air-pumps” which only purpose was to dilute tail pipe measurements. “Oxygenated” fuels would accomplish a similar function. We’d just have to buy more, but the numbers would look good.
I remember one day years ago, when I was in college, I pulled up to a stoplight in my '66 Mustang with the grocery-getter 200-cid 6-cylinder. Next to me at the light was a little late-70's Japanese econobox. I was thinking Corolla wagon/Datsun 510, not really paying attention.
I needed to change lanes before the next light, so when the signal changed I jumped on it pretty aggressively to pull ahead of the econobox. Didn't work, though, and when the girl in the econobox saw what I was trying to do, she romped down on the accelerator and positively DUSTED me.
As she pulled away I remember seeing the words "Mazda Rotary Wagon" on the fender. Oops.
It's not a bad looking car and won a sport car shootout in Road & Track a few years ago against the Nissan 350Z and some other likely competitors, but to me it just looks too pedestrian to really get the blood flowing. I wish they would do away with the 2+2 format and suicide back doors and make a pure sports car again.
The aforementioned Nissan, for instance, looks WAY more bitchin'.
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