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Interesting take on the combustion engine - LiquidPiston

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nctnico:

--- Quote from: KE5FX on February 17, 2021, 08:55:12 am ---
--- Quote from: nctnico on February 16, 2021, 06:23:43 pm ---
--- Quote from: tom66 on February 16, 2021, 05:46:52 pm ---I don't know why anyone would try to create a startup company to market a new ICE,  the technology is dying.

--- End quote ---
Not at all. Look for the KPMG 'automotive outlook 2020' report. It says that in 2050 (about 30 years from now!) 75% to 85% of the cars sold will still have an internal combustion engine. With ever tighter emission regulations and need for higher efficiency it still pays of to invest in ICE technology.

--- End quote ---

Interesting.  Where do they expect those cars to be sold?  It won't be to the US, the UK, Europe, or probably even China by that point.

--- End quote ---
Yes it will. Politicians count ICE hybrids as electric cars as well. Car makers say they will switch to BEVs but they know very well that it just isn't affordable / financially interesting for everyone.

One of the problems car makers are facing is that small 3 cylinder engines vibrate a lot which reduces the comfort. The rotary design of LiquidPiston could be interesting to car makers to have a compact engine that doesn't vibrate so much. A power output in the 50kW to 90kW range is enough for a  hybrid drive system in a passenger car.

Circlotron:
Poor surface to volume ratio in the combustion chamber which makes for high unburned hydrocarbons emission, just like a Wankel. Might be interesting running on hydrogen though. No HC.

DenzilPenberthy:

--- Quote from: tom66 on February 16, 2021, 05:46:52 pm ---I don't know why anyone would try to create a startup company to market a new ICE,  the technology is dying.

Sure, it will still be around for another 15-20 years,  but the applications for this product look to be at low power levels (go karts, power tools, etc.) where already electric motors and batteries are competitive -- it looks like an increasingly small portion of the market and not necessarily a better solution (it's more efficient but who measures the efficiency of their weed-whacker?  Is the fuel even a significant cost?)

--- End quote ---
:-+
This is definitely in the same category as someone pouring resources into breeding better carthorses in 1900, or developing new thermionic valves in the late 50s. Utterly bonkers.

nctnico:

--- Quote from: Circlotron on February 17, 2021, 11:21:40 am ---Poor surface to volume ratio in the combustion chamber which makes for high unburned hydrocarbons emission,

--- End quote ---
If you look closely at the video you'll see that that isn't the case. The claim is that it is opposite of the Wankel engine. If you look at the video you'll see that the burn chamber is closed off by the rotor giving a well defined (small) space in which the burn occurs.

Benta:

--- Quote from: nctnico on February 17, 2021, 04:15:18 pm ---
--- Quote from: Circlotron on February 17, 2021, 11:21:40 am ---Poor surface to volume ratio in the combustion chamber which makes for high unburned hydrocarbons emission,

--- End quote ---
If you look closely at the video you'll see that that isn't the case. The claim is that it is opposite of the Wankel engine. If you look at the video you'll see that the burn chamber is closed off by the rotor giving a well defined (small) space in which the burn occurs.

--- End quote ---

So put your money where your mouth is: buy some shares.

I'll refrain.

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