Search found 413 matches

by hagent
Fri May 18, 2012 3:54 pm
Forum: Valveless pulsejet forum
Topic: concentric lockwood
Replies: 26
Views: 6426

Re: concentric lockwood

Hmm, how about this? http://img442.imageshack.us/img442/9219/pj66.gif I like it. Thermal distortion won't be a problem on the intake, since the intake does not get that hot. The pointy part where the intake comes into the CC area may need to be looked at. If you build this you may want to put a fla...
by hagent
Fri May 18, 2012 3:32 pm
Forum: Valveless pulsejet forum
Topic: concentric lockwood
Replies: 26
Views: 6426

Re: concentric lockwood

As much as I love the concept of concentric / annular / coaxial designs they have real major problems Heat being primary. Over heating. Warping. you name it. I am still trying to make one work well, no luck. I am convinced that some day some one will make a good one. Just my .02 http://www.youtube....
by hagent
Wed Feb 03, 2010 7:13 pm
Forum: Valveless pulsejet forum
Topic: Big Linear FWE for a Paying Client
Replies: 60
Views: 9797

Re: Big Linear FWE for a Paying Client

Hi Larry, Long time no chat. A very nice build! Did you get a chance to try the new injectors? I need to make something much better than what I currently have on my large PJ before I fire it up again. Sorry to hear about your job. I hope you can get that order. It sure is nice to make money at somet...
by hagent
Fri Dec 07, 2007 8:49 pm
Forum: Pressure jet forum
Topic: Pulseramjet
Replies: 42
Views: 18691

Pulse combuster

Hey Luc,

That's really amazing. I'm happy for you and hope you will succed in getting this to the market place.

It's nice when you can take a hobby? or obsession and pay for the roof over your head.

Good luck,

Hagen
by hagent
Thu Nov 01, 2007 4:00 am
Forum: Valveless pulsejet forum
Topic: 50 lbF 'Lady Astor' Not For Beginners
Replies: 184
Views: 52039

50 lb

Hi Berry, A real work of art! On one of your photos there seemed to be enough propane at least for a start. I noticed that alot of fire was coming from one or two of your intakes. Before making any more modifications I would try and set up your air at all three intakes. I think that this will help y...
by hagent
Mon Oct 08, 2007 11:49 pm
Forum: Valveless pulsejet forum
Topic: Muffler Shop Special
Replies: 28
Views: 9459

Muffler

It's part of the intake and fuel line, so it won't get too hot.

Just braze it.

Cheers,
by hagent
Sun Oct 07, 2007 1:50 pm
Forum: Valveless pulsejet forum
Topic: Radial inlet
Replies: 34
Views: 7579

Hi Jutte, It was only putting out a few pounds of thrust. I haven't tinkered with it very much and I'm sure there are alot of areas that I could impove upon. The interesting thing for me is when I first had a good run I was using very little fuel, but it was very hard to start with my old set up. I ...
by hagent
Sun Oct 07, 2007 1:29 am
Forum: Valveless pulsejet forum
Topic: Radial inlet
Replies: 34
Views: 7579

Grim

by hagent
Sun Oct 07, 2007 1:23 am
Forum: Valveless pulsejet forum
Topic: Radial inlet
Replies: 34
Views: 7579

Grim

I think everyone forgot my concentric PJ.

http://www.pulse-jets.com/phpbb2/viewto ... concentric


Check it out let me know what you think.

Cheers.
by hagent
Sun Oct 07, 2007 1:15 am
Forum: Valveless pulsejet forum
Topic: Radial inlet
Replies: 34
Views: 7579

Jutte

I haven't tried this yet;

weld a small steel tube on the side of the exhaust at an angle towards the exit. Try using shop air, it should pull air into the intake.

Hagen
by hagent
Wed Oct 03, 2007 8:40 pm
Forum: Valveless pulsejet forum
Topic: Muffler Shop Special
Replies: 28
Views: 9459

Mikes engine

Hey Mike,

I'm glad you put the fuel holes at aprox 45 Degrees from the intake flow.

That seemed to be a limiting factor on my concentric PJ because I think the propane pressure was starting to interfere with the intake cycle when the fuel was pushed in at 90 degrees to intake air flow.

Good luck!
by hagent
Wed Oct 03, 2007 8:31 pm
Forum: Off topic forum
Topic: Pulsejet Sound Clip on NPR
Replies: 12
Views: 3002

Larry's speach

That was great Larry!

Nice speach.

Did you get to measure your engine for power and TSFC yet?

Cheers,
by hagent
Tue Oct 02, 2007 1:34 pm
Forum: Off topic forum
Topic: A steam generator with possible over unity
Replies: 32
Views: 11173

Steam Generator

Hello everyone. I just got a response from Undaltd, Here it is. Dear Hagen, The smallest unit we are making now are 5.5kW, the price for them on the Irish market is 8500 euro plus the VAT(21%). We don't have any reps in USA, we are looking for somebody interested, the installation is very simple. Le...
by hagent
Sun Sep 30, 2007 10:08 pm
Forum: Off topic forum
Topic: A steam generator with possible over unity
Replies: 32
Views: 11173

Steam Generator

[quote="Quote "Kwant is the hydrodynamic heating system. It is one of ultimate heating experiences that uses the principles of “quantum theory” - a revolutionary physics theory that enables the creation of enormous quantities of energy with minimum expenditures of resources."[/quote] I saw that too ...
by hagent
Sat Sep 29, 2007 11:11 pm
Forum: Off topic forum
Topic: A steam generator with possible over unity
Replies: 32
Views: 11173

Steam Generator

Wow this is really going to piss Mark off... :D Mark might just have to buy one and let us know what the real energy effeciency is. I'm just kidding Mark... It looks like they are claiming 232%. 3 kw pump at 6,000,000 cal. I wonder how much one of those units are. The 1A model. It would probably tak...