New 16X Rotary Engine
01-31-08, 12:04 PM
#101
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The system inherits the basic design concept of the hydrogen rotary engine, injecting gasoline in a high-pressure spray during the intake cycle, promoting atomization and vaporization of fuel and the formation of a stable air-fuel mixture. The latent heat of fuel vaporization lowers the temperature of the air-fuel mixture, thus raising the engine’s charging efficiency. At the same time, it reduces fuel adhesion to the chamber wall, which has been a problem of the conventional port injection system, while promoting a more homogenous air-fuel mixture.
03-06-08, 03:35 AM
#102
After looking at the concept. And the shadows from the back of the car. Obviously they arn't going to use that exact body style. But if they stick to that it would end up being FWD. As there are only rear trailing wheels and no axels seeming to connect them if I saw correctly? But again that is obvious they wouldn't use exact concept but just wanted to bring that up. Its still a terrible looking concept. Bring the older body style back. I still get people asking if my FD was made a few years ago. And they are awed when they find its a 94. But thats really cool what they are doing now with rotaries. I also liked their concepts of turbos with the electric motor or something like that. Read it a while back it wasnt a supercharger but a turbo that was kept spooled at low rpm for better response. Does anyone know what Im talking about?
04-23-08, 07:26 PM
#104
Yep, somehow I missed that the eccentricity was completely different now. Any idea if the housings are still the same length, such that it might still be the same length as a 13B?
Mazda seems to be the only folks who really have the technology and commitment to make these fundamental revisions. I've been hoping to see something like this for a long time. Sure they didn't like what they got in the 13A, but that was Mazda's only departure, so far as I know, from the early 10A cross-section, and this is only the second. Surely they've gotten smarter since then and finally have all the tools to get the geometry fully optimized.
The material density would be near billet material density, if done right.
I'm surprised, though, to see that the rotor physically grows as well as the eccentricity. They'd have to save a lot of weight just to keep the revs were when they left off, not to mention making any improvement. I guess the new shape will breathe that much better or cleaner.
Mazda seems to be the only folks who really have the technology and commitment to make these fundamental revisions. I've been hoping to see something like this for a long time. Sure they didn't like what they got in the 13A, but that was Mazda's only departure, so far as I know, from the early 10A cross-section, and this is only the second. Surely they've gotten smarter since then and finally have all the tools to get the geometry fully optimized.
The material density would be near billet material density, if done right.
I'm surprised, though, to see that the rotor physically grows as well as the eccentricity. They'd have to save a lot of weight just to keep the revs were when they left off, not to mention making any improvement. I guess the new shape will breathe that much better or cleaner.
Last edited by afgmoto1978; 04-23-08 at 07:41 PM.
04-23-08, 07:34 PM
#105
If it is a true DI injector then increasing the sizing to compensate for turbocharging will be an issue. There really isn't an aftermarket for high pressure DI.
Last edited by afgmoto1978; 04-23-08 at 07:51 PM.
05-15-08, 12:33 PM
#107
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I don't get it, why does Mazda continue to just play it so safe? Safe is boring, if they want to be a top contender for something, they need to just do it. If they are going to make a sports car, a real one,... they need to think extreme. With the FD, it was beautiful and hung with the best speed wise, but they could have out done them.They put the 20B in a luxury sedan (which should have been in the 7). Now it's time to stop tip toeing around being in the pack, and make this rotary a lightweight beast w/ around 350 hp reliable to the wheels at around 40,000 grand and get an actual 25 mpg with this new rotary. And a real 25 mpg,... not the "24" they claimed and the 12 I get when I am lucky.
05-15-08, 01:51 PM
#109
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05-15-08, 04:07 PM
#116
well i read it elsewhere, not on Mazda's site but they were having cooling issues with the mules. they fitted them with bigger rads and oil coolers as well as better ducting and they were trying to improve airflow out of the engine bay to remove the hot air.
05-15-08, 07:30 PM
#120
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None of those links work. Can someone post the pic of the engine? I've read two different stores. 1=Hybrid electric assisted supercharger and 2 = 3-rotor Renesis.
05-16-08, 02:48 PM
#122
It's a 2 rotor 1.6L engine with aluminum side walls, direct injection (better fuel economy and power), higher thermal efficiency chamber shape (better fuel economy and power), similar dimensions and lighter weight than the current Renesis. The current Renesis is already 50-80lbs. lighter than the 13B, which is pretty insane considering that the 20 year old 13B is at least 50 lbs. lighter than any 2.2-2.6L piston engine around. Mazda seems to be addressing the major complaints about the Renesis, but it also seems like the new engine would be even more expensive. Even so, I'd love to see it. My major gripe about the Renesis was that Mazda mainly re-used old racing/aftermarket tech. This engine has direct injection and a newer, more efficient housing shape.
Notice that the article says "would" and "aims". The engine is still in progress.
The RX-8 will undergo a refreshing/redesign in 2010. Mazda says they will be increasing the power. IIRC they'll do that by tweaking the existing Renesis a little and they're also doing some minor styling changes. No other word on that.
Notice that the article says "would" and "aims". The engine is still in progress.
The RX-8 will undergo a refreshing/redesign in 2010. Mazda says they will be increasing the power. IIRC they'll do that by tweaking the existing Renesis a little and they're also doing some minor styling changes. No other word on that.
Last edited by ericgrau; 05-16-08 at 02:59 PM.
05-26-08, 09:07 PM
#123
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Mazda Taiki continues the evolution of the Nagare design theme, following in the footsteps of the Mazda Nagare, Mazda Ryuga, and Mazda Hakaze concept vehicles. As the fourth in the series, Mazda Taiki further advances and refines the theme through a fusion of the Nagare (flow) design concept and real-world technologies, such as a next-generation rotary engine and enhanced aerodynamic performance. Mazda Taiki sets a new ideal for the front-engine rear-drive sports car of the future. ...technologies introduced for the Mazda Taiki include the next-generation RENESIS (rotary engine 16X), which sets new standards for environmental and driving performance, a front-engine rear-drive layout, a unique 2-seat configuration, and Mazda’s rotary sports package, which conveys an image of lightness. The effect integrates the design theme perfectly to realize outstanding aerodynamic performance.
There will also be a Hydrogen mini van and RX-8 scheduled for 2010 but no flying cars, oh well.
Next Generation RENESIS (Rotary Engine 16X)
In developing the next-generation RENESIS, Mazda made a thoroughgoing revision of engine dimensions including the trochoid rotor housing, adopting a longer stroke and larger displacement of 1600cc (800cc x 2) aimed to raise thermal efficiency and boost torque at all engine speeds. By employing the Hydrogen RE design policy of a direct injection system and aluminum side housing, as well as various other measures, we are further promoting the rotary engine’s merits of light weight and compact size.
Last edited by GoRacer; 05-26-08 at 09:19 PM.
05-27-08, 10:56 AM
#125
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