> Hi Paul,
> on that Mazda video on YouTube about rotary engine production
> they make
> mention of a 16b with aluminum side housings as a future project.
> It refers to increasing the capacity by increasing the "stroke". I
> guess they mean increasing the eccentric distance. Most of us thought
> that the ideal would be to increase the rotor width to 100 mm.
> Do you
> know anything of this?
> BR, Dave McC
>
>
> I can't find anybody that will admit to anything. If they do
> increase "e"
> it might be for a higher compression ratio. They do tell me
> wider rotors
> (100 mm) are out. Too bad as the new engines will have all new parts.
>
> I would just be ecstatic if it was all aluminum.
> --
> Paul Lamar ...No rotor no motor.
>
> The 40th Tokyo Motor Show 2007
>
> Torque boosted at all engine speeds. Further improvement in fuel
> efficiency.Direct injection. Redesigned trochoid rotor housing
> and increased displacement
> Light weight and compact size through the use of aluminum side
> housing and other measures
>
> Hi Paul,
> well just be ecstatic then,
> BR and Enjoy,
> Dave McCandless
>
> Here is the link.
> http://www.mazda.com/motorshow/technology/power/renesis/index.html
>
> Doug can you go and take some pictures for us? If not you will have
> to put up with Robin and I again. Also please find out what the
> e and the R is.
>
> Paul Lamar ...No rotor no motor.
>
> Here are a few guess's.
>
> Rotor the same width (80 MM) outside width +1 inch to 13 5/8
>
> I am surprised. I would think a wider rotor would give a better
> combustion chamber shape. Looks like they just scaled it up in
> 2D :)
>
> Outside height to + 1.5 to 14 inches less the direct injectors.
>
> e/R looks the same. My guess is high RPM is now going to be more
> of a problem. They may reduce the red line. consequently max
> power with
> a p-port ataround 10,000 RPM will be down. Too bad. If I were
> doing it
> would go wider rotor and use an aux P-port.
>
> Max power p-port at 7500 RPM should be up to about 285 HP.
> Great for the tilt rotor VTOL.
>
> Perhaps wider would be a problem for the phasing gears.
>
> Well one up side it will fit in an RX8 with minimal changes :)
> Should plug right in to an RX8 car.
>
> Weight about 185 +/- 5 pounds. Not much less than the current
> RX8 motor
> despite the aluminum end housings.
>
>
> Paul Lamar ...No rotor no motor.
>
> The Rotary Engine NewsLetter. Powered by Linux.
> ACRE NL web site. http://www.rotaryeng.net
> Copyright 1998-2006 All world wide rights reserved.
>
>
Hi Paul here is what Wikipedia has to say about the 16X


Also known as the RENESIS(2), made its first (and so far only)appearance
in the Mazda Taika concept car. And is most likely to be the same engine
in the new revision of the Mazda RX-8 car, which currently features the
13B-MSP.

The Mazda press release regarding the engine:

   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.

   Marc J

   NexusMustang


The Rotary Engine NewsLetter. Powered by Linux.
ACRE NL web site. http://www.rotaryeng.net
Copyright 1998-2006 All world wide rights reserved.