small rotary engine
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Quite interesting. The rotary design is a neat one. Unfortunately they have a reputation as not being very economical, that is one reason that Mazda dropped them. Hopefully these folks can work on that aspect as well.
heat seeker
Minister of Fire
interesting - how it works out.
I think, however, that most of the noise from leaf blowers is from the fan moving all that air. But for other applications, such as trimmers and chain saws, a reduction in engine noise would be fantastic!
I think, however, that most of the noise from leaf blowers is from the fan moving all that air. But for other applications, such as trimmers and chain saws, a reduction in engine noise would be fantastic!
It wouldn't surprise me. They are a very good mechanical design with many pros (weight, power, reliability, less moving parts, etc.) They just have a couple cons that haven't been able to be rectified (fuel efficiency is the big one).
The early mazda rotarys were not bad on gas it was only when the cars got bigger and heavier that fuel mileage suffered
They were never really that good on gas and their rotor seals were a frequent problem. What happened was the ICE fuel mileage went up and the rotary could not match those improvements.
This is interesting also:
https://autos.yahoo.com/news/worlds-most-advanced-gas-engine-170021695.html
https://autos.yahoo.com/news/worlds-most-advanced-gas-engine-170021695.html
My brother's RX-8 is a sick race car that blows away my big six E-320 (which is hardly slow either).
You pass someone on the highway and you hit 90 mph before you leave the passing lane. (I am generally a very passive, conservative driver). In the 320 I like to cruise interstate at about 80, but in the RX-8 it is more about leaping ahead and awe inspiring traction.
I saw this referenced on my r/c helicopter forum. The only difference I can see from a wankel is that they put the seals on the chamber wall instead of on the tips of the rotor. I have no idea if that's going to solve the typical wankel limitations already mentioned above - poor seal life, oil consumption, emissions and poor fuel economy.
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