700 Degrees F falls well short of the mark for exhaust systems.
And there is no metion of any specific plastics that can be take exhaust system temperatures let alone those having processing capability to be formed into those parts.
You still can't back up your claim nuddly.
There was a company in Kingston, Ontario, Canada that was developing a plastic ICE! I know, because my brother did some work for them as an outside contractor. I don't know what the current state of development is/was or what has happened to them, my brother has since moved on to other things.
Dan
Any details? I could see it work with metal inserts and metal parts where it counts, using a polymer for weight reduction elsewhere. Other than the combustion chamber itself and the exhaust pretty much the rest of the engine could be done with one polymer or another. Longevity (not to mention the economics) is another question however.
Before I posted the previous, I did a quick search on the web but couldn't find fast. (I do have to work sometimes). As I recall the "stories" I heard from my brother, the heads, comb. chambers, everything, was some type of polymer. Which may explain why I can't find anything on it right now (ie it didn't work).
But I also seem to recall that the problems were production related rather than functional. This was 5-10 years ago or more, so maybe newer methods could help bring it back. Anybody got an extra 15 or 20 million they want to give me. It sure would be a lot more fun than what I'm doing now!
Dan
Chas Hurst
I searched as well, nothing turned up. But if was a polymer it would have to be one that is glass or metal reinforced.
I am getting visions of GM's method of casting vega engine blocks ;)
Sometimes the term "plastic engine" is misleading. For example, a ceramic engine is not really made from a chunk of porcelain. Rather, the block is aluminum with a very high silica content. The cylinders are etched about .015" deep, leaving only the rough "glass/ceramic" as the wearing surface. Where the aluminum was etched away, a composit is applied to fill in the space vacated by the aluminum and the cylinder finished to proper size. You could call this a "plastic" or a "ceramic" engine.
Oh, pretty old?
Old enough not to trust (or pay much attention to) anyone under 40. With few exceptions I consider today's young people to be almost entirely worthless. Their "opinions" are of no interest.
It is very unlikely that the entire fossil-fuel infrastructure is going to disappear during my lifetime. What happens after that is not my concern. In the meantime as a consumer I am not interested in converting to hydrogen or any alternative fuel or engine type. (Gasoline may of course become more expensive, but frankly that's not an issue for me, and I drive a vehicle that on a good day gets about 14 or 15 mpg.)
In news: snipped-for-privacy@unix3.netaxs.com, Roger Blake being of bellicose mind posted:
There's Ross Perot's sucking sound. Hehehhehee
Can you point out any retail hydrogen outlets, as opposed to those fleet fuel sites? (Let's check back in two years. Betcha those few hydrogen powered vehicles will have been mostly replaced by Diesel electric hybrids.)
The average house ape can barely cope with dispensing a relatively benign liquid fuel like gasoline; hydrogen is another order of difficulty altogether. It would certainly never be available self-serve.
Ah. Then anyone who cares about the world our descendants will inherit should discount or ignore your opinions, since they do not encompass long-term interests.
One day you may have to convert to meet vehicle inspection emissions standards.
In news: snipped-for-privacy@thank-you.com, Richard Schumacher being of bellicose mind posted:
AS the wicked witch of the west said to Dorothy.... "All in good time my pretty... all in good time"
In news: snipped-for-privacy@thank-you.com, Richard Schumacher being of bellicose mind posted:
Won't happen. All he has to do is cry pauper .... such an upgrade disproportionately affects the pooor. Politics overrides emission objectives. Just look at diesel and alternative fuels now. LOL
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