Go Back  RCU Forums > RC Airplanes > RC Jets
Reload this Page >

UT-160 turbine? Feedback please?

Notices
RC Jets Discuss RC jets in this forum plus rc turbines and ducted fan power systems

UT-160 turbine? Feedback please?

Old 02-21-2010, 01:44 PM
  #101  
chrigui
 
chrigui's Avatar
 
Join Date: Mar 2004
Location: ferrara, ITALY
Posts: 1,566
Likes: 0
Received 0 Likes on 0 Posts
Default RE: UT-160 turbine? Feedback please?

the machine in the pic's are little (25 ton)

but we have a 350 ton
Old 02-21-2010, 03:42 PM
  #102  
Jetbono
Senior Member
 
Join Date: Nov 2009
Location: London, UNITED KINGDOM
Posts: 180
Likes: 0
Received 0 Likes on 0 Posts
Default RE: UT-160 turbine? Feedback please?


I also noticed you dont use seringe needles for your injectors instead you use brass capilary, what size is it ?
Old 02-22-2010, 02:08 PM
  #103  
Jetbono
Senior Member
 
Join Date: Nov 2009
Location: London, UNITED KINGDOM
Posts: 180
Likes: 0
Received 0 Likes on 0 Posts
Default RE: UT-160 turbine? Feedback please?



Hey Gerals

I noticed the holes in your combustion chamber are very round , what do you use to drill the 0.5mm SS sheet ?

Old 02-22-2010, 03:35 PM
  #104  
Gerald Rutten
 
Gerald Rutten's Avatar
 
Join Date: Oct 2004
Location: Venlo, Netherlands
Posts: 416
Likes: 0
Received 0 Likes on 0 Posts
Default RE: UT-160 turbine? Feedback please?

I use simple and cheap ss drills which I sharpen myself now and than. Triangular holes are of no concern at all, some other engines of mine have them, no difference in combustion. Maybe the reason the holes you saw where nice and round because I made several sheets in one atempt. I stick the paper template to the ss pre-cut sheet and I stick 3 ss sheets together using ordinairy double sided sticking tape. I drilled them through all at once making more meat to drill in. In this way I make more liners in one go, very easy!

Rgds,
Gerald
Old 02-22-2010, 03:38 PM
  #105  
Gerald Rutten
 
Gerald Rutten's Avatar
 
Join Date: Oct 2004
Location: Venlo, Netherlands
Posts: 416
Likes: 0
Received 0 Likes on 0 Posts
Default RE: UT-160 turbine? Feedback please?


ORIGINAL: Jetbono


I also noticed you dont use seringe needles for your injectors instead you use brass capilary, what size is it ?
These are 1mm outer, 0,5mm inner. Due to the large diameter it is adviced to make them longer to increase resistance, they are usualy about 60mm long. That's why they are positioned in a coil. seringes may be better but I had this stuf in large qty's. Also it less prone to blockages.
Old 02-22-2010, 03:58 PM
  #106  
Jetbono
Senior Member
 
Join Date: Nov 2009
Location: London, UNITED KINGDOM
Posts: 180
Likes: 0
Received 0 Likes on 0 Posts
Default RE: UT-160 turbine? Feedback please?



Great, I thought you used some special methode of some kind ... hahaha

Haa let me show youmy combustor Im making ..

Look at my perfect holes here , Im following your footsteps !! hahaha

Attached Thumbnails Click image for larger version

Name:	Tr51508.jpg
Views:	257
Size:	40.7 KB
ID:	1384717   Click image for larger version

Name:	Hd94971.jpg
Views:	275
Size:	61.8 KB
ID:	1384718  
Old 09-22-2010, 09:32 AM
  #107  
chrigui
 
chrigui's Avatar
 
Join Date: Mar 2004
Location: ferrara, ITALY
Posts: 1,566
Likes: 0
Received 0 Likes on 0 Posts
Default RE: UT-160 turbine? Feedback please?

anyone have done other tests??

i'm closing holes in combustion chamber trying to eliminate flame trough ngv in my first engine..

any pics of combustion chamber after running is appreciate
Old 09-22-2010, 12:44 PM
  #108  
mnours
Junior Member
 
Join Date: Sep 2010
Location: JEDDAH, SAUDI ARABIA
Posts: 7
Likes: 0
Received 0 Likes on 0 Posts
Default RE: UT-160 turbine? Feedback please?

Hello to all
Please provide me with the type of metal made him all the engine components
And where you get the engine turbine manufacturing scheme
Thank you for all
Nur
Old 09-22-2010, 01:38 PM
  #109  
Gerald Rutten
 
Gerald Rutten's Avatar
 
Join Date: Oct 2004
Location: Venlo, Netherlands
Posts: 416
Likes: 0
Received 0 Likes on 0 Posts
Default RE: UT-160 turbine? Feedback please?

Hi Nur, please look here: http://www.jetmax.ch/en/products.htm

Rgds,
Gerald
Old 09-23-2010, 01:42 AM
  #110  
chrigui
 
chrigui's Avatar
 
Join Date: Mar 2004
Location: ferrara, ITALY
Posts: 1,566
Likes: 0
Received 0 Likes on 0 Posts
Default RE: UT-160 turbine? Feedback please?

closing 12 holes in front of the cc the situation is slightly better

i will try to close other 12 holes and after 2 different solution of cc



(maybe the problem is the improved performace fo compressor after reduction clearance between it and cover and diffusor ?!!?[&o][&o])[&o][&o]
Attached Thumbnails Click image for larger version

Name:	Wt59314.jpg
Views:	250
Size:	26.1 KB
ID:	1505566   Click image for larger version

Name:	Yt63103.jpg
Views:	238
Size:	24.5 KB
ID:	1505567  
Old 09-24-2010, 01:43 AM
  #111  
chrigui
 
chrigui's Avatar
 
Join Date: Mar 2004
Location: ferrara, ITALY
Posts: 1,566
Likes: 0
Received 0 Likes on 0 Posts
Default RE: UT-160 turbine? Feedback please?

to prevent failure due screw touching turbine wheel


Attached Thumbnails Click image for larger version

Name:	Ge94782.jpg
Views:	316
Size:	144.3 KB
ID:	1505935  
Old 04-18-2011, 04:29 AM
  #112  
AdriFlyBoy
Senior Member
 
Join Date: Apr 2010
Location: Zagreb, CROATIA (HRVATSKA)
Posts: 162
Likes: 0
Received 0 Likes on 0 Posts
Default RE: UT-160 turbine? Feedback please?

I have one noobish question.Has the diffuser design anything with thrust?What are the differences between helical(or two stage)diffuser and the kamps one(with glued vanes)?Can the same thrust(16-18kg)be achieved with kamps style diffuser on UT-160ZA ?

Here is my situation.I have a lathe that I am going to convert to CNC but I don't have a mill.So it would be great thing if I could get away without mill by building Kamps style diffuser.

I apologise if there is any misunderstandment,English is not my first language.
Old 04-18-2011, 04:41 AM
  #113  
chrigui
 
chrigui's Avatar
 
Join Date: Mar 2004
Location: ferrara, ITALY
Posts: 1,566
Likes: 0
Received 0 Likes on 0 Posts
Default RE: UT-160 turbine? Feedback please?

i built 3 engine 160 with kamps diffuser style..
16,2 16,3 kg/trust

never tryed with old style diffuser design...but i think that is less efficent...
18/19kg was achived by gerald rutten changing the compressor and modify the diffuser and exaust cone ...
Old 04-18-2011, 09:35 AM
  #114  
PDR200
 
Join Date: Dec 2008
Location: Melbourne, AUSTRALIA
Posts: 121
Likes: 0
Received 0 Likes on 0 Posts
Default RE: UT-160 turbine? Feedback please?

Hi Guys,
Sorry its been awhile since I've posted. Here are some Pic's of what I've been up to

Cheers,
Paul
Attached Thumbnails Click image for larger version

Name:	Ge96522.jpg
Views:	353
Size:	81.7 KB
ID:	1595674   Click image for larger version

Name:	Ys49655.jpg
Views:	413
Size:	60.6 KB
ID:	1595675   Click image for larger version

Name:	Wy49188.jpg
Views:	366
Size:	58.8 KB
ID:	1595676  
Old 04-18-2011, 09:38 AM
  #115  
PDR200
 
Join Date: Dec 2008
Location: Melbourne, AUSTRALIA
Posts: 121
Likes: 0
Received 0 Likes on 0 Posts
Default RE: UT-160 turbine? Feedback please?

more,
Attached Thumbnails Click image for larger version

Name:	Eb86916.jpg
Views:	373
Size:	55.9 KB
ID:	1595677   Click image for larger version

Name:	Cv62483.jpg
Views:	377
Size:	54.9 KB
ID:	1595678   Click image for larger version

Name:	Zb58517.jpg
Views:	363
Size:	69.9 KB
ID:	1595679  
Old 04-18-2011, 09:40 AM
  #116  
PDR200
 
Join Date: Dec 2008
Location: Melbourne, AUSTRALIA
Posts: 121
Likes: 0
Received 0 Likes on 0 Posts
Default RE: UT-160 turbine? Feedback please?

more,
Attached Thumbnails Click image for larger version

Name:	Wu60658.jpg
Views:	318
Size:	59.6 KB
ID:	1595680   Click image for larger version

Name:	Zt53051.jpg
Views:	277
Size:	76.3 KB
ID:	1595681   Click image for larger version

Name:	Xz52848.jpg
Views:	307
Size:	67.3 KB
ID:	1595682  
Old 04-18-2011, 09:42 AM
  #117  
PDR200
 
Join Date: Dec 2008
Location: Melbourne, AUSTRALIA
Posts: 121
Likes: 0
Received 0 Likes on 0 Posts
Default RE: UT-160 turbine? Feedback please?

,,
Attached Thumbnails Click image for larger version

Name:	Zx72001.jpg
Views:	315
Size:	50.8 KB
ID:	1595683   Click image for larger version

Name:	Yr47568.jpg
Views:	317
Size:	76.0 KB
ID:	1595684   Click image for larger version

Name:	Fh81016.jpg
Views:	329
Size:	70.2 KB
ID:	1595685  
Old 04-18-2011, 09:49 AM
  #118  
PDR200
 
Join Date: Dec 2008
Location: Melbourne, AUSTRALIA
Posts: 121
Likes: 0
Received 0 Likes on 0 Posts
Default RE: UT-160 turbine? Feedback please?

..
Attached Thumbnails Click image for larger version

Name:	Pn35410.jpg
Views:	224
Size:	193.2 KB
ID:	1595686   Click image for larger version

Name:	Kd89761.jpg
Views:	226
Size:	100.9 KB
ID:	1595687   Click image for larger version

Name:	Ac63311.jpg
Views:	252
Size:	76.5 KB
ID:	1595688  
Old 04-18-2011, 09:58 AM
  #119  
PDR200
 
Join Date: Dec 2008
Location: Melbourne, AUSTRALIA
Posts: 121
Likes: 0
Received 0 Likes on 0 Posts
Default RE: UT-160 turbine? Feedback please?

So far I've only done a few test runs

I have some small problems to fix. Then I should be able to do much more testing and post some accurite data.

My main problem is at low power settings (below 40%) I have flame thru the NGV same as Chrigui?? but when power increases combustion goes back inside the combustion chamber.

Does anyone know what causes this problem? [:'(]

More info coming,
Cheers,
Old 04-18-2011, 10:19 AM
  #120  
AdriFlyBoy
Senior Member
 
Join Date: Apr 2010
Location: Zagreb, CROATIA (HRVATSKA)
Posts: 162
Likes: 0
Received 0 Likes on 0 Posts
Default RE: UT-160 turbine? Feedback please?

So that menas that I can use the compressor like on Kamps turbine(book "Model jet engines")?
Here is the picture(it's a simple round piece of metal with glued vanes):
http://www.gtba.co.uk/engine_designs/kamps.php
You can see picture of Kamps diffuser under "Materials".Is that ok for UT160?
Will I still get 16kg of thrust?
Old 04-18-2011, 10:45 AM
  #121  
chrigui
 
chrigui's Avatar
 
Join Date: Mar 2004
Location: ferrara, ITALY
Posts: 1,566
Likes: 0
Received 0 Likes on 0 Posts
Default RE: UT-160 turbine? Feedback please?

ORIGINAL: PDR200

So far I've only done a few test runs

I have some small problems to fix. Then I should be able to do much more testing and post some accurite data.

My main problem is at low power settings (below 40%) I have flame thru the NGV same as Chrigui?? but when power increases combustion goes back inside the combustion chamber.

Does anyone know what causes this problem? [:'(]

More info coming,
Cheers,

hello .. my problem was the lubrication fluid (front bearing) sucked by compressor due to clearance between compressor base
and the diffuser.... solved later ...
Old 04-19-2011, 06:34 AM
  #122  
AdriFlyBoy
Senior Member
 
Join Date: Apr 2010
Location: Zagreb, CROATIA (HRVATSKA)
Posts: 162
Likes: 0
Received 0 Likes on 0 Posts
Default RE: UT-160 turbine? Feedback please?

So,will I still get 16+kg of thrust with old style Kamps diffuser(with glued vanes).That kind of diffuser is more similar to helical diffuser in UT160-ZA than to the two stage diffuser in UT160.
Old 04-19-2011, 06:36 AM
  #123  
chrigui
 
chrigui's Avatar
 
Join Date: Mar 2004
Location: ferrara, ITALY
Posts: 1,566
Likes: 0
Received 0 Likes on 0 Posts
Default RE: UT-160 turbine? Feedback please?

your glued diffuser is similar to FRANK TURBINE DIFFUSER..
maybe the trust will be around 15kg...
Old 04-19-2011, 06:48 AM
  #124  
AdriFlyBoy
Senior Member
 
Join Date: Apr 2010
Location: Zagreb, CROATIA (HRVATSKA)
Posts: 162
Likes: 0
Received 0 Likes on 0 Posts
Default RE: UT-160 turbine? Feedback please?

From UT160 or UT160-ZA?

Old 04-19-2011, 06:50 AM
  #125  
chrigui
 
chrigui's Avatar
 
Join Date: Mar 2004
Location: ferrara, ITALY
Posts: 1,566
Likes: 0
Received 0 Likes on 0 Posts
Default RE: UT-160 turbine? Feedback please?

for 16kg trust i suggest 160-za

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.