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Interesting take on the combustion engine - LiquidPiston

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tom66:

--- 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 ---

That would surprise me.  Perhaps if they're counting developing nations, but most European nations have committed to eliminating the ICE by 2030-2040.  Whether they hit their targets is another matter,  but automakers seem to be aiming this way. 

Sal Ammoniac:
It's always amazed me how well modern IC engines work considering the large number of moving parts that all need to operate in a coordinated fashion. I guess that's a result of over a century of development. Contrast that to electric motors, which have a single moving part and are far far simpler than IC engines.

retrolefty:

--- Quote from: Sal Ammoniac on February 16, 2021, 10:52:34 pm ---It's always amazed me how well modern IC engines work considering the large number of moving parts that all need to operate in a coordinated fashion. I guess that's a result of over a century of development. Contrast that to electric motors, which have a single moving part and are far far simpler than IC engines.

--- End quote ---

 There was never a question of the superiority of electric motors over ICE engines. The problem was/is the power density of the energy sources used.

 

tom66:

--- Quote from: Sal Ammoniac on February 16, 2021, 10:52:34 pm ---It's always amazed me how well modern IC engines work considering the large number of moving parts that all need to operate in a coordinated fashion. I guess that's a result of over a century of development. Contrast that to electric motors, which have a single moving part and are far far simpler than IC engines.

--- End quote ---

I think it's worth putting in perspective though.

An average car might do say 250,000 miles before the ICE needs a serious rebuild.  If that car did an average speed of 40 mph - a mix of highway and city driving, say, that's a runtime of about 6,000 hours.

It's not uncommon for machines to exceed that so in some senses you could ask why do ICE vehicles require such regular servicing and have a relatively short lifespan in comparison to e.g. an industrial machine that may last 10 years continuous use (2 x 8 hrs shifts per day) before major rebuilds - that's 58,000 hours.

Of course given cars are generally used on short duty cycles (pre-COVID the average car still spent about 90% of its time parked up) it doesn't matter so much that their lifespan is perhaps 'comparably' short.

KE5FX:

--- 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.

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