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Tony Matthews
QUOTE (Feliks @ Aug 10 2010, 21:50) *

This is torque v horsepower all over again!
cheapracer
QUOTE (Tony Matthews @ Aug 12 2010, 17:31) *
This is torque v horsepower all over again!


They don't look like the torque'ative types to me.
Tony Matthews
QUOTE (cheapracer @ Aug 12 2010, 11:27) *
They don't look like the torque'ative types to me.

up.gif It's the little one that makes me slightly nervous...
cheapracer
QUOTE (Feliks @ Aug 3 2010, 20:18) *
Well, who would have thought that Newcomen was so close to an adequate solution



Not James Watt apparently .....

http://en.wikipedia.org/wiki/James_Watt
Feliks
QUOTE (cheapracer @ Aug 12 2010, 12:00) *
Not James Watt apparently .....

http://en.wikipedia.org/wiki/James_Watt



Newcomen has absolute priority
http://en.wikipedia.org/wiki/Thomas_Newcomen

Andrew smoking.gif smoking.gif
Feliks
QUOTE (Feliks @ Aug 10 2010, 20:50) *
I also very close to the Technology


Regards Andrew smoking.gif smoking.gif


However and that will had such a good humor, just take a timber and a little grease lubricated. rolleyes.gif

Do not need any oil !! biggrin.gif:D

Seal or Teflon or lubricated with diesel fuel.

OIl = diesel fuel in this picture





Regards Andrew smoking.gif smoking.gif
cheapracer
QUOTE (Feliks @ Aug 13 2010, 07:16) *
Newcomen has absolute priority
http://en.wikipedia.org/wiki/Thomas_Newcomen

Andrew smoking.gif smoking.gif


Newcomen's engine was a piece of shit that Watt redesigned, Watt's steam engine was so much better that he was fine with being paid part of the % of running fuel cost savings over Newcomen's engine for his early ones.
Greg Locock
The animation shows quite clearly the weakness in N's engine - it developed power due to a vacuum caused by condensing the steam in the cylinder. In retrospect a bass ackward approach.
Feliks
QUOTE (Greg Locock @ Aug 15 2010, 17:00) *
The animation shows quite clearly the weakness in N's engine - it developed power due to a vacuum caused by condensing the steam in the cylinder. In retrospect a bass ackward approach.


Yes, However Newcomen was already much better than Heron's engine. N, at least perform a specific job, and not just serve fun.

The history of technology is very important, it shows the next stages of its development.

Although some seem ridiculous to us now. But sometimes we come back to them ...

Andrew smoking.gif smoking.gif
Feliks
Some new4stroke history:

Print table of Fortran 1982 program.
I could choose from 100 of these tables, each for different angular positions of crakshafts.
Here is one of them:


Working drawing of the head:



Regards Andrew smoking.gif smoking.gif
Feliks
The first windmills pumped water in America. To sustain this good tradition, I developed a little more modern sytem for the production of electric current in a similar way of pumping water.Whether American landscape views, are water sphere.I decided to add this view to the next shot where the water will be collected water so that it could give electrical energy when draining it back into the lower reservoir.




This water will be pumped sphery as in the first versions of windmills, wind.
The wind turbine will move a small diameter, but it is a multi-blade, placed together with the hydraulic pump in the middle of a specially constructed balloon. Balloon will be tethered, as previously barrage balloons.
Only that will go along the line, hydraulic pipes, the hydraulic motor, which will be driven water pump located in the lower reservoir.The water pump will continuously pump water to sphery. Now the water falling from the lower reservoir back to the shery, will do an electric current through hydrogenerator.






Every so water sphere about the capacity of 2000 m 3, and the height 100 m can give power 10 MW for 3 minutes. If filling pumps water with the one I believe loss is managing to fill waters up, we will have it 10 MW driven with wind turbine in balloons.
Of course, the balloons could be filled up by hydrogen, because today we have very good material on the shell.
This system could be installed in any place where electricity is needed, and thus would have limited losses on the transfer.
Also low noise, and the invisibility of the rotating blades, not to interfere in coexistence with the environment.Balloons can be affixed to a height of 150 to 200 meters, where the wind is always blowing on the ground even when there is absolute silence.

some links:
http://media.primezone.com/cache/189/int/8385.jpg

http://www.youtube.com/watch?v=mu2glpmRXIs...layer_embedded#!

http://www.engadget.com/2010/06/21/northro...long-endurance/

http://www.youtube.com/watch?v=W3n5cUaG5fg...player_embedded

Regards Andrew smoking.gif smoking.gif

On Saturday is the anniversary of 9 / 11, and make this possible, I decided to share with my good deed ,publication of this study.

http://www.911dayofservice.org/
Feliks



Of course, two rotate in one direction and two in the opposite direction.
You must use a very light hydraulic oil. If it were not frozen in winter.
Hydraulic pump in the balloon has the best power to weight ratio. All the airlines are working on the hydraulic actuators.
Of course, all of the balloon must be tested in the wind tunnel aerodynamic, in order to fully match the efficiency of the 21st century.

Some pictures of how to create a balloon from the inside rolleyes.gif






and NASCAR wind tunnel




Regards Andrew smoking.gif smoking.gif
Wuzak
QUOTE (Feliks @ Sep 12 2010, 12:40) *
Hydraulic pump in the balloon has the best power to weight ratio. All the airlines are working on the hydraulic actuators.
Of course, all of the balloon must be tested in the wind tunnel aerodynamic, in order to fully match the efficiency of the 21st century.


Surely Boeings use electronic servomotors and ball screws to actuate controls, wheel retraction, etc.

And aren't hydraulic pumps kinda low efficiency compared with electric generators/motors?
MatsNorway
Don`t seems so, i like the idea of a ballscrew system tho.



The span on the hoses alone i think will be a problem. How high is this thing going to fly/hoover?
And what about lifetime on the hoses.
And lifetime on the balloon.
Wuzak
QUOTE (MatsNorway @ Sep 12 2010, 15:42) *
Im guessing wheel retraction is hydraulic.

yepp.

wiki:
"Most retraction systems are hydraulically-operated, though some are electrically-operated or even manually-operated."




Most, not all.

I know that Boeing has tradiationally used electric motors in preference to hydraulics.
gruntguru
QUOTE (MatsNorway @ Sep 12 2010, 21:42) *
The span on the hoses alone i think will be a problem. How high is this thing going to fly/hoover?
And what about lifetime on the hoses.

and the weight of water in the hoses, and the issues with having the water pump at the top of the pipe (You cannot lift more than a 10m column of water using suction and atmospheric pressure alone.)

Put electric generators in the balloons. Put the pumps on the ground.
cheapracer
The better answer is to make the balloon itself the wind turbine and the guy ropes the neg and pos lines ....

Feliks
There is a way to shorten a bit of flexible hydraulic tube...



Well, if it accidentally escaped gas from the balloon and so it can be



Regards Andrew smoking.gif smoking.gif
Feliks
Name : Jazz Big Band





Regards Andrew smoking.gif smoking.gif
Feliks
Rotating Dixieland Yoda.





Regards Andrew smoking.gif smoking.gif
Feliks
Next Dixieland :




In some tubes can be hidden anti-missile ..

Regards Andrew smoking.gif smoking.gif
Wuzak
Why not just do this?

Feliks
QUOTE (Wuzak @ Sep 17 2010, 12:05) *
Why not just do this?


Because visible rotating propellers, provide anxiety.
Human eye is accustomed to fast motion detection subconscious. These are the remains when he was still a hunter .... cool.gif

And a little too small amount of rolleyes.gif

Regards Andrew smoking.gif smoking.gif
Feliks
To those dixielnds can efficiently drive Hydraulic, it may have, no peaks of specialized software, use the links below.

http://www.hippocampus.org/homework-help/P...Simulation.html

http://www.ce.utexas.edu/prof/kinnas/319la...ri/venturi.html

http://www.globalsecurity.org/military/lib.../al0966/le2.htm

The lower pressure propeller spins quickly ....
And review of the fact that it's not worth double the turbine insert...

Regards Andrew smoking.gif smoking.gif
Feliks
Mistake..!!



Andrew rolleyes.gif
Feliks
A new way of sailing through a balloon which has the wind, and transmits energy to the propeller using hydraulics




And sailing version of the Venturi jets



Regards Andrew smoking.gif smoking.gif
Feliks
I simply will look as flat block. It can be cast as a single unit. It did not need the division on the block and head. Because the pistons can be put at the bottom......
It is full 4 stroke engine.








Regards Andrew smoking.gif smoking.gif
gruntguru
QUOTE (Feliks @ Oct 4 2010, 08:05) *
I simply will look as flat block. It can be cast as a single unit. It did not need the division on the block and head. Because the pistons can be put at the bottom......It is full 4 stroke engine.

The "flathead" returns. So much for compact combustion chambers.
Feliks
QUOTE (gruntguru @ Oct 4 2010, 00:44) *
The "flathead" returns. So much for compact combustion chambers.


Yes, but you forgot, that here is a dynamic chamber. Something as between the intake piston and the exhaust piston . And at speeds reaching up to the sound. This "chamber" can be compared to the old one-cylinder two piston two-stroke Puch.
Puch
Triumph
And so in general it is not important, whether flathead or OHC engine is.
Why? Because after the closure of inlet and so does the mechanical motion to force mixture through pistons.

Regards Andrew wave.gif smoking.gif
gruntguru
QUOTE (Feliks @ Oct 5 2010, 06:03) *
Yes, but you forgot, that here is a dynamic chamber. Something as between the intake piston and the exhaust piston . And at speeds reaching up to the sound. This "chamber" can be compared to the old one-cylinder two piston two-stroke Puch.
Puch
Triumph
And so in general it is not important, whether flathead or OHC engine is.
Why? Because after the closure of inlet and so does the mechanical motion to force mixture through pistons.

A high ratio of surface area to volume is not a good thing.
Greg Locock
QUOTE (gruntguru @ Oct 5 2010, 08:55) *
A high ratio of surface area to volume is not a good thing.

Also pumping losses in the transfer ports, heat losses/gains in the transfer ports, friction all over the place.
Feliks
QUOTE (gruntguru @ Oct 4 2010, 22:55) *
A high ratio of surface area to volume is not a good thing.


Thinking the old rules, then yes. Historically, burning more coming forth to get where it is "wanted", that the whole surface. Extort combustion here to close that volume of the piston exchaust, which has a much smaller area than the piston main.The gap between the main piston and the upper wall of the cylinder can be hundereds small, and do not allow burning there, and thus also the heat loss.
But I think that exactly this issue examine the New 4 Stroke Institute within the next 20 years ... rolleyes.gif

Regards Andrew smoking.gif smoking.gif

Because the height of each piston can be different...
Feliks
RACE WIND

My version of car wind.Solo of trumpet rolleyes.gif

Will test whether it could be faster than the wind... Boat too....



Maybe a new race F1W ?? rolleyes.gif

Regards Andrew smoking.gif smoking.gif
cheapracer
QUOTE (Feliks @ Oct 14 2010, 11:01) *
[



awesome, the faster you go the faster the turbine will turn and the faster you go the faster the turbine will turn and the faster you go the faster the turbine will turn and the faster you go the faster the turbine will turn and the faster you go the faster the turbine will turn and the faster you go the faster the turbine will turn and the faster you go the faster the turbine will turn ....

Perpetual motion!
Tony Matthews
QUOTE (cheapracer @ Oct 14 2010, 10:15) *
Perpetual motion!

Constant acceleration! To infinity and beyond!
Feliks
QUOTE (Tony Matthews @ Oct 14 2010, 09:37) *
Constant acceleration! To infinity and beyond!


You never know what is beyond the present ... rolleyes.gif

Ice boat

But faster than the wind, it is possible ....


Regards Andrew smoking.gif smoking.gif

cheapracer
QUOTE (Feliks @ Oct 14 2010, 19:08) *
But faster than the wind, it is possible ....

Regards Andrew smoking.gif smoking.gif


How the hell can they get 80kmh in a 25kmh wind?
Feliks
QUOTE (cheapracer @ Oct 14 2010, 12:32) *
How the hell can they get 80kmh in a 25kmh wind?



You have to start training ice boat.... wave.gif

Race wind

Andrew smoking.gif smoking.gif


Right linkRACE WIND
Catalina Park
QUOTE (Tony Matthews @ Oct 14 2010, 19:37) *
Constant acceleration! To infinity and beyond!

We have a motor racing commentator in Australia that used to be a race driver. When there was a big high speed crash in the rain at Philip Island he made the statement that once a car hits wet grass it will accelerate till it hits a wall. This theory was grabbed by everyone else in the commentary team and is still spread via fan forums like ten-tenths.
I came up with an idea to break the land speed record, all I need it a big wet paddock.
Tony Matthews
Cricket comentators come out with the same rubbish, and I've heard it over the tannoy at Silverstone.
Catalina Park
QUOTE (Tony Matthews @ Oct 15 2010, 11:00) *
Cricket comentators come out with the same rubbish, and I've heard it over the tannoy at Silverstone.

I have often wondered about the word "tannoy" We don't have that word here. I always assumed it should have been t'annoy.
Tony Matthews
QUOTE (Catalina Park @ Oct 15 2010, 07:13) *
I have often wondered about the word "tannoy" We don't have that word here. I always assumed it should have been t'annoy.

It is spookily close to my given name - Ant'annoy. Tannoy is a manufacturer of loudspeakers, still active, amd making some high-end hi-fi units, they must have managed to get a big government contract many years ago, although, I've just realized, it's probably losing it's significance. I wonder if my children know what it means - time for some research. Where's my clipboard...
Feliks
Commentators sometimes in the "heat of battle" some incredible twist of things biggrin.gif

But perhaps the experience of the Ice Race can to help you change the aerodynamics in F1?
But in F1, there are winds above 300 km / h !
Fighter aircraft F-104 starts at a similar velocity. Right then, about 700 KG per 1 square meter load.
If using a well-sculpted are did the 700 KG used to accelerate boild F1 ...... smoking.gif

I think that not everything has been said in the aerodynamics of F1.....

700 KG at 1 m^2 - 70 KG forward at 10 dcm^2 aditional F1 wings.... rolleyes.gif



Regards Andrew smoking.gif smoking.gif
Feliks



Andrew smoking.gif smoking.gif
Feliks

Can it save fuel by using the wings ??

Andrew smoking.gif smoking.gif
MatsNorway
QUOTE (Feliks @ Oct 17 2010, 00:20) *
Can it save fuel by using the wings ??



Been thinking about something like that lately. I remember Fiat made a mini car that used the rims to blow air underneath the car to lift it up. I wonder if the energy wasted in the rims was bigger than the gain of less roll resistance.



Feliks
QUOTE (MatsNorway @ Oct 17 2010, 07:49) *
Been thinking about something like that lately. I remember Fiat made a mini car that used the rims to blow air underneath the car to lift it up. I wonder if the energy wasted in the rims was bigger than the gain of less roll resistance.


It all depends on how clever way it uses the wing...

Ice Boat

Or, the cyclist can get pull rates of 200 km / h?
And they like to ride in the peloton?


Regards Andrew smoking.gif smoking.gif

Feliks
QUOTE (MatsNorway @ Oct 17 2010, 07:49) *
Been thinking about something like that lately. I remember Fiat made a mini car that used the rims to blow air underneath the car to lift it up. I wonder if the energy wasted in the rims was bigger than the gain of less roll resistance.


It all depends on how clever way it uses the wing...

Ice Boat
Sailing_faster_than_the_wind


Or, the cyclist can get speed of 200 km / h?
And they like to ride in the peleton?

The Phisics of sailing

Regards Andrew smoking.gif smoking.gif
Feliks
It should be approached with great reverence for history...





http://www.youtube.com/watch?v=D6Zw1_NiSWg


http://www.youtube.com/watch?v=EJcxpFTFJPA&NR=1
At this film see why Crecy was in the half of the road. Simply moving the heat from the cylinder is very difficult way to get to the fins ...


But my engine, as befits the end of the road ,a little better light, even though this is only the second prototype.smile.gif

Regards Andrew smoking.gif smoking.gif
Wuzak
QUOTE (Feliks @ Oct 24 2010, 04:33) *
It should be approached with great reverence for history...





http://www.youtube.com/watch?v=D6Zw1_NiSWg


http://www.youtube.com/watch?v=EJcxpFTFJPA&NR=1
At this film see why Crecy was in the half of the road. Simply moving the heat from the cylinder is very difficult way to get to the fins ...


But my engine, as befits the end of the road ,a little better light, even though this is only the second prototype.smile.gif

Regards Andrew smoking.gif smoking.gif


The pictures and videos you posted were of the Bristol Hercules, which was quite a reliable engine. It was a 14 cylinder 2 row air-cooled radial with sleeve valves. To my knowledge they didn't suffer cooling problems different to any other air cooled engine.

The Rolls Royce Crecy was a V12 liquid-cooled 2 stroke with sleeve valves. As such it had no cooling fins. The sleeve valves worked slightly differently than on the Hercules, Taurus and Centaurus, Napier Sabre and Rolls Royce Eagle 22 in that the intake was through a jacket at the base of the cylinder, with 360° of porting in the sleeve and cylinder. The exhaust exited over the top lip of the sleeve and out the side of the top of the cylinder. The arrangement caused extremely loud exhaust noise, and could be heard for many miles around when the engine was run on the bench. It also meant that there was significantly high exhaust thrust.

The Crecy had many development problems, but was low on the priority list at Rolls Royce, which had the Merlin, Vulture (until 1944) and Griffon to concentrate on. RR were also running a 24 cylinder air cooled sleeve valve engine from about 1939 (the Exe, about 21 litres capacity), and developing the Eagle 22, similar in concept to the Sabre but 46l/2800cid instead of 37l/2200cid, and the Pennine - a larger version of the Exe (also 46l/2800cid). Not to mention their jet engine projects.

The Crecy did indeed have piston cooling problems, and had the tendency to burn hole sin the pistons. Many WW2 aero engines had oil cooling for the undersides of pistons, and the Crecy was no exception. Rolls Royce systems, like most I would guess, had fixed nozzles in teh crankcase directing oil to the underside of the piston. The Crecy had an arrangement where the oil was pumped through a tube in the middle of the con-rod and into the piston, where it was distributed for cooling (pistons were 2 piece). Had they continued the engine, Rools Royce would have used the fixed oil spray nozzles, and used a lot more oil for cooling. But by then the jet engine had arrived.

I'm not sure how the Hercules or Crecy are related to your engine, as the valving arrangement is completely different.
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