Quote:
Originally Posted by thstone
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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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.