[Diy_efi] Rotary tuning

Ernest Buckler ebuckler
Tue Feb 13 05:26:50 UTC 2007


KN,
Thanks for the info.  Lets hope AxialVector makes something happen.  It was 
invented by Dr. Karl Mueller at Studebaker, but Stude didn't understand what 
they had.  I grew up in South Bend, so knew how management there could be v. 
ignorant.  When the engine made so much torque that it broke driveshafts, 
they put it on the shelf - instead of making a better driveshaft and 
matching the engine to the car.  They felt there was no point, because 
turbines were the darling of the industry right about then, with Exner 
coming out with his prototype turbine cars, etc.
Ernie





----- Original Message ----- 
From: "KN" <Head2Wind at gmail.com>
To: <diy_efi at diy-efi.org>
Sent: Monday, February 12, 2007 5:06 PM
Subject: RE: [Diy_efi] Rotary tuning


> Reason for "DynaCam" disappearing:
> http://www.axialvectorengine.com/press_release-30.html
>
> -----Original Message-----
> From: diy_efi-bounces at diy-efi.org [mailto:diy_efi-bounces at diy-efi.org] On
> Behalf Of Ernest Buckler
> Sent: Monday, February 12, 2007 12:59 PM
> To: tmc_mike_yates at sbcglobal.net; diy_efi at diy-efi.org
> Subject: Re: [Diy_efi] Rotary tuning
>
> Mike,
> Do you know about the DynaCam engine?  People thought it was a swash-plate
> engine, but it actually has a 4-lobe sinusoidal crankshaft.  12 
> double-ended
>
> pistons with central roller bearing push this crank around.  Plate cams at
> each end operated normal valves in the 6-cyl. heads.   VERY torquey, very
> smooth, lower parts count.  FAA actually certified a 300 hp version for 
> use
> in light aircraft AND  HELICOPTERS in 1957, with a TBO of 1500 hrs, sayng
> they expected that interval to be increased, as they found no appreciable
> wear at 1500 hours.   The Navy used a single-sided version of this as a
> torpedo motor for many years, was Top Secret until turbines replaced it. 
> I
> knew a guy who overhauled these in the practice torps, says they were
> "coffee-can" size.   Serious efforts to commercialize it have been made,
> last I heard the Co. still existed at Torrance airport, but there was very
> little about it on the web, last I looked.  Rumor has many reasons for
> company failure, most bad management.   Cool thing is that it still uses
> std. piston rings, also normal valves & springs, so no re-inventing the
> wheel, as there is on Wankels, with all their side and tip sealing
> challenges.
>
> Ernie B
>
>
>
>
> ----- Original Message ----- 
> From: "Mike Yates" <tmc_mike_yates at sbcglobal.net>
> To: <diy_efi at diy-efi.org>
> Sent: Monday, February 12, 2007 12:12 PM
> Subject: Re: [Diy_efi] Rotary tuning
>
>
> the rotary parts have no different requirements except you usually use
> 2 spark plugs per chamber due to the distance the flame front has to
> travel.   plans at this point are for a go-kart application but who
> knows i just want to experiment with larger eccentricity (i.e.
> basically stroke) to see if any reasonable amount of torque can be
> made from a rotary engine.
>
> plus they sound so damn cool at 9k rpms
>
> Mike
>
>
> On Mon, 12 Feb 2007 12:22:03 -0600, you wrote:
>
>>Hi Mike no real suggestions for parts -- are coil packs or ignition
>>pickups different for the rotary or can you use conventional engine
>>parts?  Mostly just wanted to write and say this sounds really cool and
>>to keep the list posted on how you do.  What do you plan to do with the
>>engine?
>>
>>--steve
>>
>>> -----Original Message-----
>>> From: diy_efi-bounces at diy-efi.org
>>> [mailto:diy_efi-bounces at diy-efi.org] On Behalf Of Mike Yates
>>> Sent: Monday, February 12, 2007 11:25 AM
>>> To: diy_efi at diy-efi.org
>>> Subject: [Diy_efi] Rotary tuning
>>>
>>> ok here goes...I work with CAD/CAM software all day at work (aerospace
>>> machining) so i'm drawing up plans for a small displacement
>>> ~1.0 liter rotary engine 3 rotor most likely with a larger
>>> eccentricity than the 13b.
>>>
>>> long story short i dont want to slap a carb on this i'd like
>>> to go FI anyone have any ideas on what i need from the junk
>>> yard or where i could source parts like coil packs and an
>>> ignition pick-up/driver?
>>>
>>> if anyone has gibbs cam or can open .igs files i'd be happy
>>> to share the product of my sleepless nights.
>>>
>>> Mike
>>> _______________________________________________
>>> Diy_efi mailing list
>>> Diy_efi at diy-efi.org
>>> Subscribe: http://lists.diy-efi.org/mailman/listinfo/diy_efi
>>> Main WWW page:  http://www.diy-efi.org/diy_efi
>>>
>
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