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Not all ICEs must consume fossil fuels. The tech could bring alternative fuels closer to viability.
Porsche's idea for a six-stroke internal combustion engine
31–40 of 367 posts
Re: Porsche's idea for a six-stroke internal combustion engine
#32[flagged]
Seems brilliant to me, as this is true marvel of engineering, contrary to electrocars which... well are not. They could've been should the engine be powered by fuelcells, but in their present form the electrocar movement took off only because of green deal, climate change, etc, which forced governments to allow business create the needed infrastructure of batteries and powerstations. Besides, you'd be surprised at th…
Yeah. It looks pretty cool. There is something satisfying about a complex mechanical mechanism. However, in its current form it is not the future. Combustion engines in general are not going to be the future. Hydrogen is a joke. Not energy dense enough. And expensive to make (energy wise). It also needs a vast network of gas stations.
Re: Porsche's idea for a six-stroke internal combustion engine
#33Earlier quoted context omitted.
>how damaging it is mining for rare metals to make those batteries. Even thought I'd agree mass EV would not be carried by the current grid, or that charging density and time is not satisfactory (in most of Europe)... LiFePO4 doesn't contain rare earth metals, unless you count Li for 'rare'.
> Even thought I'd agree mass EV would not be carried by the current grid In many places putting solar panels on roofs and on parking spaces would solve such issue.
Talk about North Europe winters - all the forever gray (and snow)
Re: Porsche's idea for a six-stroke internal combustion engine
#34Earlier quoted context omitted.
Electric cars still consume fossil fuels. It’s just earlier in the pipeline. People love to talk about combustion engines being pollutants but few people talk about just how damaging it is mining for rare metals to make those batteries. Nor how harmful for the environment it is disposing of old batters (we haven’t yet solved the problem of recycling them either). And that’s before you even touch on problems at the po…
Most of these claims are dramatically false. - Electric motors use low amounts of rare earth metals, or in some cases none. Batteries generally don't use them either. - Automotive batteries have been demonstrated as >90% recyclable, far better than most materials we consider "recyclable" today such as plastic - The electric grid has sufficient capacity to onboard millions of electric cars without issue, and will not…
I’m particularly interested in last three points. Do you mind to share some data?
For instance, where one recycle a Tesla battery, say in Poland?
I do not see to many chargers around and I believe the grid is not very modern here. Why do you think it can easily handle millions EVs? What about peak hours like nights? Do you think it will be env friendly, provided that majority of electricity in Poland is produced on coal plants.
EV initial cost is about 5-10 times more than a slightly used ICE in a perfect condition. Such a car car drive decades and will never reach in total spendings even initial cost of EV. I’m not counting charging that may not be very cheap. As electricity prices went up in recent years and may go up more.
When you stating something, think beyond your household. Your statements are not universal.
Re: Porsche's idea for a six-stroke internal combustion engine
#35Earlier quoted context omitted.
Presumably as Porsche is not about efficient transportation; it is about emotion, driving as an experience, making a statement, etc. Chances are there will be - or, at least, Porsche appears to bet there will be - a sufficient number of well-heeled enthusiasts who prefer the sound, smell and vibration of an ICE to the quiet performance of an electric motor. I am really curious to see how this pans out in a generation…
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Oh, they will be, no worries - doubly so as the fuel they need goes from being a necessary evil of civilization to a niche product for enthusiasts.
There's going to be along tail of ICE vehicles out there, though - say, I have a tractor on my farm (which is not being worked commercially, it is basically an expensive and time-consuming hobby seeing as my wife's family has tilled this plot of land since the dark ages. Literally.)
Anyway, even if diesel prices soar to $25/l (That's $100/gal for the metrically challenged), with our current usage, it will still be cheaper to buy diesel at that cost than to invest in a new, EV tractor. Hence I can't see that tractor going anywhere anytime soon.
Re: Porsche's idea for a six-stroke internal combustion engine
#36Earlier quoted context omitted.
Presumably as Porsche is not about efficient transportation; it is about emotion, driving as an experience, making a statement, etc. Chances are there will be - or, at least, Porsche appears to bet there will be - a sufficient number of well-heeled enthusiasts who prefer the sound, smell and vibration of an ICE to the quiet performance of an electric motor. I am really curious to see how this pans out in a generation…
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They’re already heavily taxed. But why vilified?
Re: Porsche's idea for a six-stroke internal combustion engine
#37[flagged]
Because large manufacturers are seeing EVs are struggling to take off.
Might as well spread your bets. They are also working heavily on efuel, that works with ICE engines, does not pollute much, but currently would cost 2x at the pump. If they could shave that cost in half we could keep most ICEs (plus an add on catalyst). Distribution networks could be kept. Batteries and their chemicals would not be needed.
So if either pays off, it’s a fortune.
Re: Porsche's idea for a six-stroke internal combustion engine
#38[flagged]
Why is it a dead end? I agree that it should be , but it seems the entire world is walking back the commitment to a full transition to EVs.
https://www.edie.net/one-in-seven-new-cars-worldwide-is-now-...
> One in seven new car sales worldwide is now electric
> Year-to-date figures show that nearly 10.6 million EVs have been sold globally as of July 2024, marking a 16.3% increase compared to the same period last year.
What constitutes “walking back”?
Re: Porsche's idea for a six-stroke internal combustion engine
#39Earlier quoted context omitted.
>how damaging it is mining for rare metals to make those batteries. Even thought I'd agree mass EV would not be carried by the current grid, or that charging density and time is not satisfactory (in most of Europe)... LiFePO4 doesn't contain rare earth metals, unless you count Li for 'rare'.
On top of that, the commenter is completely ignorant of the rise of saltwater batteries which don't even use lithium. Also probably unaware that with the rise of extremely low cost, solar and wind, Fossil fuel use on the grid is economically nonviable long term. Even so, the fossil fuels consumed on the grid are very likely to be combined cycle natural gas, which has less carbon emissions than have equivalent. Amount…
>On top of that, the commenter is completely ignorant of the rise of saltwater batteries which don't even use lithium.
I'd not call the rise, yet. The Na ones' energy density (and specific energy) is even lower than Li based (LiFePO4 is lower than cobalt ones). They might be okay for grid storage, of course.
Re: Porsche's idea for a six-stroke internal combustion engine
#40Earlier quoted context omitted.
> Even thought I'd agree mass EV would not be carried by the current grid In many places putting solar panels on roofs and on parking spaces would solve such issue.
Talk about North Europe winters - all the forever gray (and snow)
Have you ever been to North Europe in the winter?