Posted by Beladi Nasralla on October 24, 2007, 4:48 am
Recently I spoke to the Engineering Manager of a company which
manufactures rotary engines for aircraft. I mentioned to him that I
read about a "rotary" engine which is a kind of Wankel engine, but has
two paddles in the shape "X". He told me that the name of such a type
of engine is "nu-teddy" because of the crossed paddles. I did a search
on the Internet, but could not find any mentioning of "nu-teddy".
Obviously, I wrongly spelled it. Maybe someone can tell me what was
the term ? Thanks.
Posted by Rodan on October 24, 2007, 5:22 am
"Beladi Nasralla" wrote :
I read about a rotary engine called something like "nu-teddy".
But I can't find any mention of "nu-teddy" on the Internet.
If I misspelled it, can someone can tell me the correct term?
_______________________________________________
Nutating.
Posted by spaco on October 24, 2007, 11:40 am
"Nutating" (oscillating), I think. If it's the one I'm thinking of,
its the McMaster Motor. There is only one "paddle". The brother of
a guy I worked with at 3M invented it and he used to show us its
progress at our monthly retirement breakfast meetings. the brother is
now gone, but the commercialization continues. Last I heard, they had
a large order from a cab company in England.
You can see it at > http://www.mcmastermotor.com/concept.htm
Pete Stanaitis
----------------
Beladi Nasralla wrote:
> Recently I spoke to the Engineering Manager of a company which
> manufactures rotary engines for aircraft. I mentioned to him that I
> read about a "rotary" engine which is a kind of Wankel engine, but has
> two paddles in the shape "X". He told me that the name of such a type
> of engine is "nu-teddy" because of the crossed paddles. I did a search
> on the Internet, but could not find any mentioning of "nu-teddy".
> Obviously, I wrongly spelled it. Maybe someone can tell me what was
> the term ? Thanks.
>
Posted by TheAndroid on October 24, 2007, 12:08 pm
Mighty Engine? (MYTY?)
Posted by David R Brooks on October 24, 2007, 2:18 pm
Beladi Nasralla wrote:
> Recently I spoke to the Engineering Manager of a company which
> manufactures rotary engines for aircraft. I mentioned to him that I
> read about a "rotary" engine which is a kind of Wankel engine, but has
> two paddles in the shape "X". He told me that the name of such a type
> of engine is "nu-teddy" because of the crossed paddles. I did a search
> on the Internet, but could not find any mentioning of "nu-teddy".
> Obviously, I wrongly spelled it. Maybe someone can tell me what was
> the term ? Thanks.
>
BTW in relation to aircraft, "rotary" also means a radial in which the
crankcase rotates, & the crankshaft is stationary. See Gnome Monosoupape
(ie 1-valve), and similar designs. Popular in WW1, but long gone now.
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> manufactures rotary engines for aircraft. I mentioned to him that I
> read about a "rotary" engine which is a kind of Wankel engine, but has
> two paddles in the shape "X". He told me that the name of such a type
> of engine is "nu-teddy" because of the crossed paddles. I did a search
> on the Internet, but could not find any mentioning of "nu-teddy".
> Obviously, I wrongly spelled it. Maybe someone can tell me what was
> the term ? Thanks.
>