RE: 4 Stroke Redesigned
Discussion
Feliks said:
In large scale are better see advantages or disadvantages
Problem with crankshaft deflection are little:[url]www.prismateknik.com/viewNavMenu.do?menuID=11[/url]
What you thing , are possible make big marine diesels in my garage?
Regards Andrew
Feliks said:
What you thing , are possible make big marine diesels in my garage?
Regards Andrew
In my garage I not have a lot of place , grinding piston make this metode:[url]www.in-situ.co.uk/crankshaft.html[/url]
Seals in Half Rotate engine are changed easy similar brake pads .
Are possible changed often e.g. plastic(witout lubrication) or ceramic(warer lubrication) seals.?
Maby seals make brake pads material ??
And some possible variants piston valve maby to use this characterisctic
Regards Andrew
Are possible changed often e.g. plastic(witout lubrication) or ceramic(warer lubrication) seals.?
Maby seals make brake pads material ??
And some possible variants piston valve maby to use this characterisctic
Regards Andrew
Edited by Feliks on Monday 27th November 16:49
All story of anatomy inventions about half rotate piston in this place [url]www.new4stroke.com/images/Possible%20mutation%20pivot.htm[/url]
Regars Andrew
Regars Andrew
Edited by Feliks on Thursday 7th December 11:12
Feliks said:
One Grek man , help me and free make some pretty animations: when coursor up -Hi PPM when down Low RPM.
[url]www.new4stroke.com/images/new4stroke.exe[/url]
[url]www.new4stroke.com/images/new4stroke_around.exe[/url]
Regards Andrew
[url]www.new4stroke.com/images/new4stroke.exe[/url]
[url]www.new4stroke.com/images/new4stroke_around.exe[/url]
Regards Andrew
could you not activate your "piston valves" via solenoids? you'd then have infinitely variable valve timing and reduced weight/complexity?
Mark
[quote=ELAN+2]
could you not activate your "piston valves" via solenoids? you'd then have infinitely variable valve timing and reduced weight/complexity?
Mark[/quote]
I thing , so are possible more new mutation.
If you have ACROBAT 3D in this place viev e.g cros section my prototype [url]www.new4stroke.com/images/Engine%20Adobe%20Acrobat%203D.pdf[/url]
Regards Andrew
present
could you not activate your "piston valves" via solenoids? you'd then have infinitely variable valve timing and reduced weight/complexity?
Mark[/quote]
I thing , so are possible more new mutation.
If you have ACROBAT 3D in this place viev e.g cros section my prototype [url]www.new4stroke.com/images/Engine%20Adobe%20Acrobat%203D.pdf[/url]
Regards Andrew
present Extended at both ends. More pressure and more volume...
The gas exchange phase in a supercharged two-stroke diesel occupies roughly 100-120 degrees around bottom dead centre, placed asymmetrically so it occupies more of the downward than the upward stroke. The inlet is via piston-controlled ports around the bottom of the cylinder, so it is symmetrically timed. The exhaust has to open before the inlet in order to allow the cylinder pressure to fall below that in the intake duct before the inlet ports open, so it generally opens round about 100 deg ATDC. This limits the expansion ratio.
It is then something of a rush to get the scavenging completed and the supercharge pressure achieved in the cylinder before the inlet ports close on the upstroke. If you close them too late you lose the use of a significant part of the cylinder volume. Generally the scavenge phase occupies the majority of the available time and there is little time available to flow more air into the cylinder to build up much supercharge pressure.
With the very long dwell time at the bottom of the stroke things are much easier. The exhaust can be opened much later so you don't lose expansion ratio, and there is plenty of time both to scavenge the cylinder and to supercharge it before the piston travels far up the cylinder. So you can get more charge into the cylinder and expand the combustion products more effectively.
The gas exchange phase in a supercharged two-stroke diesel occupies roughly 100-120 degrees around bottom dead centre, placed asymmetrically so it occupies more of the downward than the upward stroke. The inlet is via piston-controlled ports around the bottom of the cylinder, so it is symmetrically timed. The exhaust has to open before the inlet in order to allow the cylinder pressure to fall below that in the intake duct before the inlet ports open, so it generally opens round about 100 deg ATDC. This limits the expansion ratio.
It is then something of a rush to get the scavenging completed and the supercharge pressure achieved in the cylinder before the inlet ports close on the upstroke. If you close them too late you lose the use of a significant part of the cylinder volume. Generally the scavenge phase occupies the majority of the available time and there is little time available to flow more air into the cylinder to build up much supercharge pressure.
With the very long dwell time at the bottom of the stroke things are much easier. The exhaust can be opened much later so you don't lose expansion ratio, and there is plenty of time both to scavenge the cylinder and to supercharge it before the piston travels far up the cylinder. So you can get more charge into the cylinder and expand the combustion products more effectively.
Pigeon said:
Extended at both ends. More pressure and more volume...
Not exactly :
In P-V diagram this mechanical engine and traditional engine are SAME
But , I am sure , so efficient this differential mechanical principles are NOT SAME
In this explain , we have some simple line about T.D.C.
It signifies that, so V is constans about some time, but egine are running in this time.( Crakshaft are clockwise about some deg.)
Maybe next parameter P are changed in this time.But in diagram this changed are only line, short or long , but in area diagram P-V not changed.
It signifies that, so two different mechanical construction are have indentical efficient ????
I thing , so its impossible.
Maybe we must take into consideration next very important physical parameter : TIME
Next efficient are near true.
Maybe in this xmas we lost some entropy ??
Regards Andrew
Edited by Feliks on Sunday 24th December 00:39
Time is indeed the important point. Because the piston has more dwell time at the bottom of the stroke there is more time available when no work can be done anyway to perform the gas exchange phase. You can open the exhaust valve near the bottom of the stroke instead of not long after half way down it, so the expansion ratio is greater, and the PV curve extends further to the right.
nel said:
Personally I don't think it'll get developed much further - it all just looks too heavy and cumbersome for what is not, as far as I can see, a radical improvement on the current internal combustion engine design. Now if he could make it run on water....
It has allegedly been done!
If you like a good conspiracy theory your gonna love this one.
Apparently a swedish guy made a small engine run on water H2O
His theory was to have combustion you need 3 things
A fuel, oxygen to support combustion and a source of ignition.
Water has hydrogen ( a fuel see the hindenburg)
Oxtgen to support the combustion
we can provide a spark at any given moment to start the combustion.
The reason water does no burn is the quantities and the ration that these gases exist in water.
the guy apparently invented a cheap and easy way of separating the two.
there way a bit of a press release and the guy was never heard of or seen again.
Did he push or was he jumped?
Imaging the chaos if 2 thirds of the worlds surface were effectivly covered in free fuel and every time it rained it rained more fuel?
There would be some very upset people in the world!
Ironically all those people who are sat on a big field of oil and sand would now just be sat on sand as there is little water in the saraha!
20 years ago mobile phones that fitted into your pocket with bluetooth and a camera did'nt work either but....
recently there have been reports of wireless electrical supplies.
not that long ago a compuer that fitted into a single room was a major achievement
you could run an engine on hydrogen as a fuel, albe not very efficiently
you can electrolise water to extract hydrogen so in theory it could work.
I never said it was true but has been a conspiracy theory for a few years now.
I rather like the ideal and wish it were true.
we would "live in interesting times" as they say while the economies of the world adjusted to that situation!
odyssey2200 said:
you could run an engine on hydrogen as a fuel, albe not very efficiently
you can electrolise water to extract hydrogen so in theory it could work.
you can electrolise water to extract hydrogen so in theory it could work.
But in order to electrolyse water - or decompose it in any other way - you have to put in at least as much energy as will be released when you burn the resulting hydrogen. So while you can use hydrogen as an energy storage medium, you can't run an engine on water.
Pigeon said:
odyssey2200 said:
you could run an engine on hydrogen as a fuel, albe not very efficiently
you can electrolise water to extract hydrogen so in theory it could work.
you can electrolise water to extract hydrogen so in theory it could work.
But in order to electrolyse water - or decompose it in any other way - you have to put in at least as much energy as will be released when you burn the resulting hydrogen. So while you can use hydrogen as an energy storage medium, you can't run an engine on water.
I think a few passenger on the Hindenburg might question you an that.
The conspiracy was that the guy had found a way to cheaply split the two!
i am not supporting the acuracy of the story or the relative merits BUT if he had what would the reprcussions be?
odyssey2200 said:
If you like a good conspiracy theory your gonna love this one.
Apparently a swedish guy made a small engine run on water H2O
His theory was to have combustion you need 3 things
A fuel, oxygen to support combustion and a source of ignition.
Water has hydrogen ( a fuel see the hindenburg)
Oxtgen to support the combustion
we can provide a spark at any given moment to start the combustion.
The reason water does no burn is the quantities and the ration that these gases exist in water.
the guy apparently invented a cheap and easy way of separating the two.
there way a bit of a press release and the guy was never heard of or seen again.
Did he push or was he jumped?
Imaging the chaos if 2 thirds of the worlds surface were effectivly covered in free fuel and every time it rained it rained more fuel?
There would be some very upset people in the world!
Ironically all those people who are sat on a big field of oil and sand would now just be sat on sand as there is little water in the saraha!
Apparently a swedish guy made a small engine run on water H2O
His theory was to have combustion you need 3 things
A fuel, oxygen to support combustion and a source of ignition.
Water has hydrogen ( a fuel see the hindenburg)
Oxtgen to support the combustion
we can provide a spark at any given moment to start the combustion.
The reason water does no burn is the quantities and the ration that these gases exist in water.
the guy apparently invented a cheap and easy way of separating the two.
there way a bit of a press release and the guy was never heard of or seen again.
Did he push or was he jumped?
Imaging the chaos if 2 thirds of the worlds surface were effectivly covered in free fuel and every time it rained it rained more fuel?
There would be some very upset people in the world!
Ironically all those people who are sat on a big field of oil and sand would now just be sat on sand as there is little water in the saraha!
Sorry to burst the bubble but the Hindenburg fire was caused and continued by the material and paints used - not the hydrogen! Hydrogen burns with a blue flame and rises very quickly.
2nd Bubble: burning water. Yes, H2O is two hydrogen atoms and an oxygen, and indeed hydrogen and oxygen do burn (explosively in the right mix).
Question: What is formed when you burn hydrogen?
Answer: Water vapour, i.e. water.
So you cannot burn water, you just need the energy (the same amount of energy) to separate water as you get from recombination: a net Zero sum game. The quantities and ratios are irrelevant - water is water. Separate it and burn it: you get water again.
Finding a way to separate the two is fine, but you have to get the energy from somewhere to do it. Conservation of energy is king here, wherever you get it from, you still need to get it to separate the H2 from the 0. There is no magic here, no one has ever managed to use anything other than conventional energy to do this.
Pigeon said:
But in order to electrolyse water - or decompose it in any other way - you have to put in at least as much energy as will be released when you burn the resulting hydrogen. So while you can use hydrogen as an energy storage medium, you can't run an engine on water.
Pigeon, you are a good inventor ! Yes of course , hydrogen are excellent energy storage medium !!! This system are replaced pumped storage electricity system !I see your invention:In north Scotland (http://www.esru.strath.ac.uk/EandE/Web_sites/03-04/wind/content/ukwindspeedmap.html )are good wind climate, need put some wind generator. ( for cut cost e.g. 400Hz system with out synchro) Put first about 100 pcs
wind turbine type E112 http://www.findarticles.com/p/articles/mi_qn4158/is_20031106/ai_n12732073
Change this 500 MW energy too hydrogen http://www.accagen.com/p-electrolyzers.htm[/URL] or [URL]http://www.h-tec.com/industrial/eng/?onload=dmlldygncHJvZHVjdHMnKTsKbWF1cygpOwpzY2hyaWZ0KCdiX3Byb2R1Y3RzX3Byb2R1Y3RzJyk7Cg==&content=products_products .
And next very important too efficient put this hydrogen too First in the World hydrogen pipeline too London and next generate electrics energy in my piston timing combustion 4 stroke combustion engine.
Your invention are most actually too 2100 year.
Regards Andrew
P.S. Maby France and Germany are interesting to extend
this pipeline to his country.Northern England attractive
wind reservoir.
Edited by Feliks on Tuesday 20th February 13:00
Edited by Feliks on Friday 23 February 00:54
Edited by Feliks on Friday 18th April 00:09
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