I've been wondering if/when we might see compression ignition gasoline engines.
This is interesting....
This is interesting....
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Doxford built opposed piston marine engines from the 1920s. The Deltic was the most famous post-war engine of this type, I think (click for animation):Btw, OP (opposed piston engines) date well before WW2,
but that was when they gained popularity.
Some advantages.....
- Lower piston speed per RPM.
- No valve train
- Compression ignition means no ignition system.
- No cylinder head to warp or leak.
- Balanced reciprocating forces.
Here's an early OP engine from around 1900...
I've been wondering if/when we might see compression ignition gasoline engines.
This is interesting....
Actually, "day 1" for compression ignition was the hot bulb oil engine.Go diesel, they been using compression ignition from day 1
Yes. They are. But of some historical interest to mechanical engineers and allied professions (such as lubricating oil technologists like myself).Gasoline? Diesel? Surely they are the past, not the future.
We live in the present, not the future.Gasoline? Diesel? Surely they are the past, not the future.
Hybrids are also good candidates for regenerating gas turbines.Yes. They are. But of some historical interest to mechanical engineers and allied professions (such as lubricating oil technologists like myself).
These things actually suffered from fairly serious emissions problems (You can see how smoky the Deltic locomotive is). I suppose they must have overcome them to some degree in the engine in @Revoltingest 's video, but I don't see them making a large-scale comeback. They might find a niche as prime movers in some hybrid vehicles I suppose.
I'm sure the Kansas City Lightning engine had poor emissions.Yes. They are. But of some historical interest to mechanical engineers and allied professions (such as lubricating oil technologists like myself).
These things actually suffered from fairly serious emissions problems (You can see how smoky the Deltic locomotive is). I suppose they must have overcome them to some degree in the engine in @Revoltingest 's video, but I don't see them making a large-scale comeback. They might find a niche as prime movers in some hybrid vehicles I suppose.
Yes but what works now is not limited to IC engines: ask the automakers.We live in the present, not the future.
Until we get anti-matter drive systems,
we're stuck with what works now.
Duh!Yes but what works now is not limited to IC engines: ask the automakers.
In 50 years, we shall see.Indeed IC engines will be gone from the developed world within half a century: Phase-out of fossil fuel vehicles - Wikipedia
Actually, "day 1" for compression ignition was the hot bulb oil engine.
Hornsby-Akroyd oil engine - Wikipedia
But of course, Rudolf Diesel's eponymous engine was a brilliant
advancement of the technology, having far greater efficiency.
I remember the discovery of fire.I meant say one for diesel, not the discovery of fire ;-)
But you know too much about scrap iron engines to argue with
That's a wager you will need to have with my son, as I shan't be around. But by then people like him will be running the auto companies. And none of this legislation is going to go backwards.Duh!
In 50 years, we shall see.
I'll wager that IC engines will smile & invoke Mark Twain.
My odds aren't all that good either.That's a wager you will need to have with my son, as I shan't be around.
I've been wondering if/when we might see compression ignition gasoline engines.
This is interesting....
True but, unlike the Wankel, this is all known technology. OP engines are well-known, and my humble VW has both a supercharger and a turbo on it, giving a 1.4 l engine the power of a 2l one, with much greater part-throttle fuel economy.Mighty cool, but it is a darn big for 2.7 liters…2 stroke. Will be interesting to see if it is used in production. But lest we forget, the Wankel that was supposed to be better too
It's a prototype, Booboo.Mighty cool, but it is a darn big for 2.7 liters…2 stroke. Will be interesting to see if it is used in production. But lest we forget, the Wankel that was supposed to be better too