Calling all gearheads

Bulk Beef

Diamond Member
Aug 14, 2001
5,466
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76
Looks like a rotary with a more complicated rotor. Doesn't seem that special.
 

MajesticMoose

Diamond Member
Nov 14, 2000
3,030
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looks sweet, like an improved rotary. The only thing that i'm wondering about is how it transfers power to a drive shaft when its shape if constantly changing.

m00se
 

Here's another interesting one:
McMaster Motor


A whole lot easier to understand :)
 

Thegonagle

Diamond Member
Jun 8, 2000
9,773
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71
Looks cool. The shape of the combustion chamber looks odd. That could present some problems.
 

Tominator

Diamond Member
Oct 9, 1999
9,559
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Although I could easily dismiss it as more Popular Mechanic dreaming as many types of hybrid rotary/turbine designs have been advanced without ever seeing any production through the years, there seems to be a concerted effort at building and making it affordable.

I still see a heat problem and complicated machineing requireing all new machines and methods. That alone has killed more than one such endeavor.

Very interesting concept. Picture 4 or more pancaked together.
 

Zenmervolt

Elite member
Oct 22, 2000
24,514
44
91
Interesting, basically a Wankel with a rotor capable of changing its shape. While I like the idea, I see a few problems with it. Wankels had terrible problems with apex seal durability early on, and I imagine that this engine would have a lot more trouble since it has what is effectively a hinge at the point where the seal apparently needs to be. Also, the problem with a Wankel's fuel economy was partially due to the fact that its intake ports are necessarily unclose-able, and I do not see an improvement on that here. Still, I like the ingenuity and it would be a very cool engine to play with until something broke.

ZV

EDIT: I wonder if they could make this engine so that you could swap batteries with the engine running. :p
 

OS

Lifer
Oct 11, 1999
15,581
1
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<< Interesting, basically a Wankel with a rotor capable of changing its shape. While I like the idea, I see a few problems with it. Wankels had terrible problems with apex seal durability early on, and I imagine that this engine would have a lot more trouble since it has what is effectively a hinge at the point where the seal apparently needs to be. Also, the problem with a Wankel's fuel economy was partially due to the fact that its intake ports are necessarily unclose-able, and I do not see an improvement on that here. Still, I like the ingenuity and it would be a very cool engine to play with until something broke. >>



hehe, that's exactly what I thought, it's just a modified rotary engine. RX-7 engines sometimes crapped out as early as 60K miles because of those apex seals.

 

777joee

Golden Member
Jun 19, 2001
1,109
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<< at least they could of included a graphic of the gerbil that has to power the thing.... >>



ROTFLMAO


"piston engines go boing,boing,boing but the Mazda goes hummmmmmmmmmm"


That was one of the funniest adds ever.


Another new mousetrap that might catch on.
 

Tominator

Diamond Member
Oct 9, 1999
9,559
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<< I wonder if they could make this engine so that you could swap batteries with the engine running. >>



Go ahead, everyone is doing it....:cool:
 

yellowvespa

Senior member
Oct 9, 2001
216
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My opinion .. the McMaster engine will never fly in practical use .. the power plate has to come to a stop and reverse direction, check the animation out closely. No wine glass commercials on the hood of that thing! Shake rattle and roll.....

The 4 sided rotor quasiturbine thing will work just fine. They just added another side to the standard three sided rotor and the hindge ends on each side to follow the contour will work well also as compression will keep the hindge sealed the same way compression keeps a piston ring against the cylinder wall. The apex seals can be the same and Mazda had them pretty sorted out in later years. Of course the easy thing to do is just buy a Mazda 20B 3 rotor twin turbo.
 

notfred

Lifer
Feb 12, 2001
38,241
4
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<< My opinion .. the McMaster engine will never fly in practical use .. the power plate has to come to a stop and reverse direction, check the animation out closely. No wine glass commercials on the hood of that thing! Shake rattle and roll..... >>



Did you even read it?

"The motor fires twice each revolution. The first firing causes the wobble plate to nutate, or oscillate, which turns the shaft 180 degrees. The second firing, in the opposing chamber, causes the wobble plate to nutate back to its original position, thus completing the rotation of the shaft and ball assembly a full 360 degrees."
 

Cyberian

Diamond Member
Jun 17, 2000
9,999
1
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<< looks sweet, like an improved rotary. The only thing that i'm wondering about is how it transfers power to a drive shaft when its shape if constantly changing.

m00se
>>

I think the drive shaft would be right in the center of the articulating 'rotors'.