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LiquidPiston – The combustion engine reimagined

invest.liquidpiston.com

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Re: LiquidPiston – The combustion engine reimagined

#11
post #3
post #2

hmmm.. still uses apex seals, would need seriously small tolerances to make it work effectively. Call me skeptical but I don't see how this is really any better than the traditional wankel/rotary design

It's effectively an inside-out wankel, so the seals are stationary. This is a much easier problem to solve, and now you don't need to throw oil in the combustion chamber to lubricate the moving seals.

to me it still looks like its principally a wankel motor just with a few changes.

Re: LiquidPiston – The combustion engine reimagined

#12
post #9
post #8

Posts on Hacker News related to LiquidPiston go back 11(!) years. The most comments are on this post: https://news.ycombinator.com/item?id=25450477 If this was going to revolutionize anything, it would've happened by now.

I think any engine design that was popularized was backed by a car company, even the Wankel engine. If they want to make this design popular, they need to design products around it so their claims are proven. I mean I still don't believe Tesla's primary business model is cars; the competition is outselling them left right and center. Theirs is batteries and charging infrastructure. That's a huge market that can fuel…

Tesla doesn't make their batteries, they buy them from Panasonic.

Re: LiquidPiston – The combustion engine reimagined

#13
post #9
post #8

Posts on Hacker News related to LiquidPiston go back 11(!) years. The most comments are on this post: https://news.ycombinator.com/item?id=25450477 If this was going to revolutionize anything, it would've happened by now.

I think any engine design that was popularized was backed by a car company, even the Wankel engine. If they want to make this design popular, they need to design products around it so their claims are proven. I mean I still don't believe Tesla's primary business model is cars; the competition is outselling them left right and center. Theirs is batteries and charging infrastructure. That's a huge market that can fuel…

Is Tesla really doing that bad at sales? The Model Y just became the worlds best selling car.

Re: LiquidPiston – The combustion engine reimagined

#14
post #3
post #2

hmmm.. still uses apex seals, would need seriously small tolerances to make it work effectively. Call me skeptical but I don't see how this is really any better than the traditional wankel/rotary design

It's effectively an inside-out wankel, so the seals are stationary. This is a much easier problem to solve, and now you don't need to throw oil in the combustion chamber to lubricate the moving seals.

right, but any float in the main eccentric shaft is still going to wear them out

Re: LiquidPiston – The combustion engine reimagined

#15
post #9

Earlier quoted context omitted.

I think any engine design that was popularized was backed by a car company, even the Wankel engine. If they want to make this design popular, they need to design products around it so their claims are proven. I mean I still don't believe Tesla's primary business model is cars; the competition is outselling them left right and center. Theirs is batteries and charging infrastructure. That's a huge market that can fuel…

Tesla doesn't make their batteries, they buy them from Panasonic.

If you have evidence that Tesla doesn't make batteries, perhaps you should alert their shareholders that the company is lying on this page:

https://www.tesla.com/giga-nevada

Re: LiquidPiston – The combustion engine reimagined

#17
Unless they are getting some miraculous increase in efficiency compared to any other Wankel engine (see Mazda), I don't see the value add here. It's essentially just a different way to do what the Wankel does with a few differences (apex seal placement, rotor shape and function).

Re: LiquidPiston – The combustion engine reimagined

#18
The video on the main page had me until they said their main focus now was on helping the U.S. empire's attempts to subjugate the rest of the world. If small form factors were a focus, how about off grid generators or the like. Leading with military applications does not inspire IMHO.

Re: LiquidPiston – The combustion engine reimagined

#19
Legacy technology always "improves" when a serious disruptor enters the market. It seldom can overcome the disruption for very long.

However this engine seems to be a great improvement on pistons if we want to continue burning dinosaur juice. It might be interesting to try it as a range extender for long-haul electric trucks due the smaller size and weight.

Re: LiquidPiston – The combustion engine reimagined

#20

Earlier quoted context omitted.

Tesla doesn't make their batteries, they buy them from Panasonic.

If you have evidence that Tesla doesn't make batteries, perhaps you should alert their shareholders that the company is lying on this page: https://www.tesla.com/giga-nevada

cells are not the same thing as batteries; it's possible tesla is making batteries with cells from Panasonic or whatever.
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