Login | Register
SearchMy Stuff
My ProfileMy PreferencesMy Mates RSS Feed
1 2 ... 21 22
24 25 ... 34 35
Reply to Topic
Author Discussion

Feliks

503 posts

114 months

[news] 
Monday 22nd August 2011 quote quote all
hollowpockets said:
So is there a working engine yet or has this project died? Don't see much about engines in the last couple of pages and can't be bothered trawling through the
coffeerest.
You should do a special program for such a Cad engine four stroke, because its proper design is very difficult. But then the operation will take and a lot of satisfaction




Regards Andrewcoffeesmokin

Feliks

503 posts

114 months

[news] 
Tuesday 6th September 2011 quote quote all
Old ideas in new study:
This gear drive in a helicopter that is bothering me. Another way to get rid of her. By the way, turned out that the rear propeller and also you can get rid of , because the helicopter does not have the torque of the main propeller.
The helicopter had already been built. But it had drawbacks: no, for example, could not take full advantage of autorotation, because the propeller with a hole through the center did not have good aerodynamic properties....

http://en.wikipedia.org/wiki/Sud-Ouest_Djinn

http://en.wikipedia.org/wiki/File:Helicopter_Djinn...
I missed this problem and the propeller is as it is most optimal.
Also today after assuming control of the helicopter adjustable nozzle (vectoring nozzle) on the outlet gases from the turbine driven, will be very precise.

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

http://upload.wikimedia.org/wikipedia/commons/0/0e...
In summary the lack of a gear transmission and rear propeller helicopter will certainly reduce weight.















Andrew coffeecoffee

Edited by Feliks on Tuesday 6th September 21:28

Zad

9,644 posts

121 months

[news] 
Tuesday 6th September 2011 quote quote all
Let me help you with that one:

http://www.youtube.com/watch?v=y9633v6U0wo



Feliks

503 posts

114 months

[news] 
Thursday 8th September 2011 quote quote all
Zad said:
Let me help you with that one:

http://www.youtube.com/watch?v=y9633v6U0wo

Many thanks !

[quote]Originally posted by Davey S2
More! More!
But of course ! :tsk

Here PhotoStream proposal, which has improved aerodynamics and a little stiffness to the system add..






some histo:

http://www.new4stroke.com/percival.pdf

http://www.new4stroke.com/AIAA-Presentation.pdf

[quote]Originally posted by Chopper
Welcome back Andrew.

One day it will fly

:eureka
http://tipjet.com/tj_pho_gallry.htm


Andrew wavey

Feliks

503 posts

114 months

[news] 
Sunday 11th September 2011 quote quote all
Green Engineering in strongbox bank...
http://www.youtube.com/watch?v=ZPWH5TlbloU

Andrewrolleyes
Advertisement

Feliks

503 posts

114 months

[news] 
Wednesday 14th September 2011 quote quote all
[quote name='Feliks' post='5270845' date='Sep 10 2011, 09:13']Poles at all it goes something like this to tinker with helicopters...

Andrew :smoking: :smoking:
[/quote]

Is Igor Sikorski, Poland had a soul? Because his father was a Pole, which the Russians took him for taking part in the January Uprising....? rolleyes

http://www.frankpiasecki.muzeumlotnictwa.pl/piasec...

http://www.frankpiasecki.muzeumlotnictwa.pl/ciastu... Lynx

Regards Andrewwavey

Feliks

503 posts

114 months

Feliks

503 posts

114 months

[news] 
Monday 19th September 2011 quote quote all
If you do not want to lose a large diameter fan operating in the Venturi nozzle, you should use " internal Venturi nozzles ".
These are just two cones inside a circular tube
Their convergence must be in accordance with the Bernoulli's principle, just like a normal venturi nozzle. So must be kept laminar flow. But we gain a large diameter fan. Theoretically, the energy gain obtained is 10 times larger in relation to the windmill in a narrow place of the normal venturi nozzle....
Field cross-sections must be changed in the same function as in classical venturi



Andrew coffeecoffee

Feliks

503 posts

114 months

[news] 
Tuesday 27th September 2011 quote quote all
Wind and water have long been a very liked.
So I think that such a solution, consistent with their preferences, will be most effective

It is a Venturi vidmil that drives large enough vane pump with sealing ring via water.
Thanks to such a seal, which is not consumed, and it is tight, you can use all the energy that gives us a venturi nozzle of the vacuum produced.. Because the turbine does not have any leaks. So ,theoretically, this will be the most efficient use of wind...

We can thus take advantage of the vacuum energy, what we get in other ways to obtain it from the wind.

New "turbine" is Liquid Ring Vaccum Pumps





http://www.gd-nash.com/uploadedImages/Nash/Product...

http://www.new4stroke.com/2BE4%20CPD%20sheet.pdf

Regards Andrewcoffeecoffee

scarble

4,281 posts

42 months

[news] 
Tuesday 27th September 2011 quote quote all
I don't have a clue what is going on in this thread but feel obliged to mention Prof. Windbags and his novel energy storage solution.
http://www.youtube.com/watch?v=KUhlsV32iHk

Or is this only for Homer-endorsed pietech?

ETA: coffeecoffeecoffeecoffee

Edited by scarble on Tuesday 27th September 20:33

Feliks

503 posts

114 months

[news] 
Wednesday 28th September 2011 quote quote all
scarble said:
I don't have a clue what is going on in this thread but feel obliged to mention Prof. Windbags and his novel energy storage solution.
http://www.youtube.com/watch?v=KUhlsV32iHk

Or is this only for Homer-endorsed pietech?

ETA: coffeecoffeecoffeecoffee

Edited by scarble on Tuesday 27th September 20:33
Feel obliged to mention this video.

Prof. Windbags very frightened looks on atomist physics, which in all ways trying to alienate us wind energy....
Previously published on this board hydraulic system with battery for wind energy:

Feliks said:
What is this?




This is a hydraulic pump of widmill bowtie

Manner of utilization is next my proposal instead of mechanical transmission
in producing windmills electric current :Hallf Rotete Pump
Main principle of operation on following drawing and has enclosed animation
Solution has many advantages from haf rotate pump. Expensive
substitute is first most important and noisy, emergency transmission
of mechanical windmill .
It is presented next advantage on former drawing
for one dynamo driven manner of connection
of whole farm of windmill hydraulic engine serious too.
This way, we save several most expensive elements of windmills,
treating such farm windmill as integrity .( Complex design)



Regards Andrew Santa Claus xmas

Edited by Feliks on Friday 5th December 23:58
Forged pistons rolleyes


And this looks like their production
http://www.youtube.com/watch?v=bPF7jdPyQaU

Andrewcoffee


Feliks

503 posts

114 months

[news] 
Thursday 29th September 2011 quote quote all
Heron's Apache my be need this engine:

http://pl.wikipedia.org/wiki/Motorjet



Heron's apache to drive propellers you may use electrically driven motors Motorjet. Then you can harness the power of their relatively high..

http://www.angelfire.com/art/jetengine/
http://www.rcgroups.com/forums/attachment.php?atta...

Well if he gave such ichyba two engines to the Hero's apache model, it is even quite good size, it could be...

http://www.rcgroups.com/forums/showthread.php?t=30...

May be person size??
The first hybrid helicopter??

Regards Andrew bowtie

Feliks

503 posts

114 months

[news] 
Thursday 29th September 2011 quote quote all
Thanks to the new Heron's Apache we can build a pretty good quality helicopter

When we begin to design a small personal helicopter similar to this:
http://rotorfx.com/mosquito_experimental_ultraligh...
We see the need to drive to the main rotor diameter of 18 feet (5.5 meter)
We see the need to drive to the main rotor diameter of 18 feet (5.5 meter) and 540 rpm rotational speeds. To achieve such a speed we could use a torque 800 Nm ( ~ 80 kgm ).
Returning now to the Hero 's Apache, we can assume that the torque on the main propeller tubes produce more than us four propeller.
Let's say that in May they long 3.5 feet (1 meter ). So, as at the end of each of those tubes you put the engine that gives us a sequence of 10 N (2 Lbs) values ??(1kg) it will be added to the rotor torque of 10 Nm (1 kgm)
So four of these tubes with motors will give us a 40 Nm (4 kgm).
Now, assuming that our helicopter will be lighter with a big motor, gears and tail rotor, we can assume that he will need to drive only the main rotor diameter of 600 Nm at, say, 16 feet (4.9 m).
So if we placed the total at the end of the tube Heron's Apache silnki of values ??within 600/40 = 15
15 X 2 lbs = 30 lbs of force within, we get has fully functional helicopter....
As it turns out, these motors have already modelers....
http://www.wrenturbines.co.uk/media/files/wren_160...
Weight engines 8 Kg (14 Lbs)....
http://wn.com/jetkart 10 position video
If you want to build a crane helicopter, use these eight:
http://www.youtube.com/watch?v=JE4t-o7XY6M :tsk
http://www.vortechinternational.com/review.html
http://www.jetcentral.com.mx/english/mammoth.html
coolcoolcool
Or a combination of hybrid electric..
http://www.youtube.com/watch?v=6DNOk5hXD60&nor...
http://www.youtube.com/watch?v=tEpbjk6dguM&fea...
http://www.rcgroups.com/forums/attachment.php?atta...
Or Only electric:
http://www.youtube.com/user/HansThunderbolt
40 pcs enought..~~ 40 KW and ful personal electric helicopter

So it happens that good fun can become a good professional...
Regards Andrewcoffeecoffee

Edited by Feliks on Friday 30th September 00:27

Feliks

503 posts

114 months

[news] 
Friday 30th September 2011 quote quote all
Well, maybe but the full electric version:
These eight electric motors:
http://shop.rc-electric-jets.com/RC-Lander-DPS-120...


Now just: 8 electric motors, ie 2 3 / 4 Lbs (1,35 kg) each battery X 8 pieces = 22Lbs (~ 10 kg) and can fly for 5 minutes. That is 132 lbs ( 66kg ) meringue can fly 30 minutes at full load... Weight of motors is 132 +16 = 148 lbs (74 kg) fuel + engines.

http://alshobbies.com/shop/lookupstock.php?pc=7178

Weight of the traditional system of propulsion engine of CRE MZ202 is 38 kg, the transmission of about 15 kg, 5 gallons of fuel to the tank about 20 kg, the total weight of 72 kg and the propulsion flight time 1 hour..
When you subtract the tail rotor 20 kg to obtain also a similar range..



Until you can control the direction of these one additional electric motors, administer, only a little smaller.

And this looks like a traditional electric version of the aircraft




Regards Andrewcoffeecoffee



Edited by Feliks on Saturday 1st October 11:40


Edited by Feliks on Saturday 1st October 11:44

chuntington101

4,707 posts

121 months

[news] 
Saturday 1st October 2011 quote quote all
Bit of a daft question here, but could these kind of fans actually be used as eletric superchargers? they look powerfull enough / to shift enough air. maybe just use the to help spool a turbo? you could mmaybe mount one in the intake to the trubo (do they do them over 100mm??) then once the turbo it up to speed it can be shut off?.........

I know there is CRAP PC fans that are sold as these for about £100 but these look more like the real deal!

Chris.

Feliks

503 posts

114 months

[news] 
Monday 3rd October 2011 quote quote all
I think that also the propeller airplanes can replenish the idea of ​​Heron's Jet Propeller. The latest toy modelers have superior features, and you may use them for "big air ".
Well let us take a small aircraft engine Rotax 447 to 44 Nm of torque. On the axis of the propeller must gear, have twice as large, ie ~ ~ 100 Nm (10 kgm ). Przytakim driving the propeller with a diameter of 1700 mm will be to spin it properly and give the appropriate string.
So at the end of a single turbine on the arm of Heron 's say a length of 500 mm have a string 200N (20 kg), and two shoulders at 100 N (10 kg). Then we were given the same torque on the propeller, which gives the Rotax engine.
http://www.faston.home.pl/r447.htm
After putting two turbines, modeling of over 10 kg (100 N), we get a replacement Rotax engine.
They even have the parameters several times larger than we need for this example.
Well, the weight of the drive unit will be cheaper too many times, what in aviation is crucial

It turns out that we already have a fairly large selection of gas turbine engines such
http://www.jetcatusa.com/p200.html
http://www.amtjets.com/Titan.php

And of course we have also quite a large number of electric motors to drive the turbines of jet aircraft models, whose parameters are such that we can use them in Heron's propeller well. Their parameters and parameters of the battery used in development Propeller Heron, causes them to become competitive with conventional engines
http://shop.rc-electric-jets.com/RC-Lander-DPS-120...

They can be used in this exemplary model propeller Heron






After viewing a few videos of models turbuny aircraft, I saw that these turbines do not have to be at the end of the model, and may be in the middle, and the aid of additional exhaust pipes just flies out of the model.

http://www.youtube.com/watch?v=TNP9TbkYCrw&fea...

From this reason, and my solution also applied this collective pipe, which is separated into 4 and changes the direction of exhaust gas.
Thanks to this, quite seriously improves the design Propellers Heron....


And weight in relation to the Rotax is 10 times less...
So that is similar in other much larger propeller propulsion system also...
http://www.amtjets.com/pdf/Olympus_HP_specificatio...

Regards Andrew bowtiebowtie

Feliks

503 posts

114 months

[news] 
Thursday 6th October 2011 quote quote all
This is the first contemporary working model turbines Heron.
  This photo accessories in my Low Budget Institute:



And this movie works as a turbine

http://www.youtube.com/watch?v=J63NOqgPgVc


Regards Andrew coffeebowtie

Edited by Feliks on Thursday 6th October 11:33

Feliks

503 posts

114 months

[news] 
Friday 7th October 2011 quote quote all
Yes, but even here motorcycle without an the traditional engine.......



Andrewcoffeecoffee

Edited by Feliks on Friday 7th October 12:31

Feliks

503 posts

114 months

[news] 
Friday 7th October 2011 quote quote all
Here, the view from the other siderolleyes



Andrew

Feliks

503 posts

114 months

[news] 
Monday 10th October 2011 quote quote all
I published once the South African forum.

http://www.landcruiserclub.co.za/cms/index.php?nam...

Perhaps, someone saw it.
Here it is made and the working prototype engine half rotate. Only this way power ,and grinding cylindrer....
But it is works....


http://stallionturbos.co.za/index.php?option=com_c...









[img]http://www.new4stroke.com/all delphine.jpg[/img]










Regards Andrewcoffeecoffee

Edited by Feliks on Monday 10th October 23:17

1 2 ... 21 22
24 25 ... 34 35
Reply to Topic