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Old 09-12-2014, 06:10 PM   #1
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New Motor Design

Thinking about putting one of these in the Jägermobile:

Engine Technology, Vehicle, Marine, Light Aircraft, Multi Fuel

Make sure to click on the "Unique Design" video clip.

I wonder how the shaft bearings will hold up???
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Old 09-12-2014, 06:46 PM   #2
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Wow, someone laid awake several nights coming up with that design. Very intriguing.

Jag, aren't you about due for a new power plant w/ 1/4 millon miles on yours?
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Old 09-12-2014, 08:19 PM   #3
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Interesting design. Some trade off's come to mind;
  • Very high compression ratio vs emissions control (NOx)
  • Sliding seals vs normal compression rings (the Wankel was famous for seal failures - ask me how I know)
  • Stationary valve-less intake/exhaust ports vs variable valve timing
  • Complexity/longevity of the reciprocator vs standard crankshaft
  • Cylindrical 5-cylinder vs our preferred flat-6 layout
That's not to say that it can't be sorted out but its going to take a lot of money.

And at the end of the day, not every good idea works out. Anyone remember the Honda NR oval piston engine?

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Last edited by thstone; 09-12-2014 at 08:22 PM.
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Old 09-12-2014, 08:56 PM   #4
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this looks interesting, my concern would be with the longevity. it would be nice toget one to play with.
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Old 09-13-2014, 07:11 AM   #5
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Quote:
Originally Posted by husker boxster View Post

Jag, aren't you about due for a new power plant w/ 1/4 millon miles on yours?
It's still going strong after 267k miles. I sometimes wonder when I will need a rebuild or new motor. I hope you didn't just jinx me.
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Old 09-13-2014, 09:23 AM   #6
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Quote:
Originally Posted by thstone View Post
Interesting design. Some trade off's come to mind;
  • Very high compression ratio vs emissions control (NOx)
  • Sliding seals vs normal compression rings (the Wankel was famous for seal failures - ask me how I know)
  • Stationary valve-less intake/exhaust ports vs variable valve timing
  • Complexity/longevity of the reciprocator vs standard crankshaft
  • Cylindrical 5-cylinder vs our preferred flat-6 layout
That's not to say that it can't be sorted out but its going to take a lot of money.

And at the end of the day, not every good idea works out. Anyone remember the Honda NR oval piston engine?

I remember it well back in my motorcycle days in the late 80s, the NR750.
I don't think it was in production long, it also had an outrageous price tag for its day.
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