Search found 31 matches

by grant richardson
Wed Jul 12, 2006 2:51 am
Forum: Valveless pulsejet forum
Topic: New FWE today.
Replies: 8
Views: 3149

re: New FWE today.

This babay is on ebay Now :D

I knew i reconized that engine. LOL
by grant richardson
Tue Jul 11, 2006 10:41 pm
Forum: Gas turbine forum
Topic: Low rpm Turbine possible?
Replies: 4
Views: 3985

Low rpm Turbine possible?

Would it be possible to build a gas turbine capable of running at 20000 rpms max rpms? This would cut out all of the balance problems since it wouldnt have to be dead perfect on balance. i have a very crude idea of how this might work :D Use high pitch model airplane props for the compressor. 2 4 bl...
by grant richardson
Mon Jul 03, 2006 2:59 am
Forum: Valveless pulsejet forum
Topic: Got my 1st FWE Pulse jet from Eric!
Replies: 13
Views: 5143

re: Got my 1st FWE Pulse jet from Eric!

No its not pressurized but i did squeez the bag by hand and raised it about 3 feet over the engine and it did about the same. The pulses did get stronger but sill no constant flow. I am going to try the pressurized can again and make some sort of servo throttle valve line pinching device. its fun wo...
by grant richardson
Mon Jul 03, 2006 1:11 am
Forum: Valveless pulsejet forum
Topic: Got my 1st FWE Pulse jet from Eric!
Replies: 13
Views: 5143

re: Got my 1st FWE Pulse jet from Eric!

Did some more testing. Ok if i move the fuel injector gasoline futher up the intake pipe it will blow air back into the bladder bag inflating it. Now if i move the gas injector right at the opening it draws the gas from the bag well but like i said when the gas is drawn out of the injector the engin...
by grant richardson
Sun Jul 02, 2006 10:17 pm
Forum: Valveless pulsejet forum
Topic: Got my 1st FWE Pulse jet from Eric!
Replies: 13
Views: 5143

re: Got my 1st FWE Pulse jet from Eric!

Alright, Gasoline will work but i cant get a constant fuel flow from the gas bladder. Heres my setup, I have 2 fuel line 1 copper for the propane and the injector line and injector eric provided for the GAS. I start it on propane and the engine draws up the gas from the bag automatically but when th...
by grant richardson
Sat Jul 01, 2006 3:49 pm
Forum: Valveless pulsejet forum
Topic: Got my 1st FWE Pulse jet from Eric!
Replies: 13
Views: 5143

re: Got my 1st FWE Pulse jet from Eric!

OK well i dont have a very hot spark. I am using a weed eater magneto running it with a drill and its a skinny dim spark at best. Theres a guy on ebay selling a igniter for $20 claming it puts out a good spark. http://cgi.ebay.com/Igniter-Starter-For-Dyna-Engine-Jet-Pulse-PulseJet_W0QQitemZ190002755...
by grant richardson
Sat Jul 01, 2006 1:09 am
Forum: Valveless pulsejet forum
Topic: Got my 1st FWE Pulse jet from Eric!
Replies: 13
Views: 5143

re: Got my 1st FWE Pulse jet from Eric!

90 psi ingersol ran aircompressor 4.4 cfm with a blower nozzle. Doubt i have heet down hear since it doesnt get that cold. I tried model airplane fuel 15% nitro, gas and denatured alcohol andf none of it worked. I gravity feed the engine, used a r/c carb to atomize the fuel which had a nice fine vap...
by grant richardson
Fri Jun 30, 2006 9:36 pm
Forum: Valveless pulsejet forum
Topic: Got my 1st FWE Pulse jet from Eric!
Replies: 13
Views: 5143

Got my 1st FWE Pulse jet from Eric!

Finally got a PJ engine. Man are they awesome the noise and heat :) It runs like a champ on propane. I tried out gasoline in it today and it didnt hardly do crap except a few pops and bangs. I have a pressurized aerosol can and a fuel injector Eric made. I am using a perry smoke pump valve. It faile...
by grant richardson
Mon Jun 12, 2006 6:46 pm
Forum: Valveless pulsejet forum
Topic: Thermojet Videos
Replies: 63
Views: 25979

re: Thermojet Videos

Number 47 You should win. This guy doesnt have a return policy or anyhitng like that so if its not he should have to take it back and give you a refund. I had a similar problem with a number 1 asshole on ebay birddog distributing i bought 2 motorized bike engines from him. I was told they would fit ...
by grant richardson
Wed May 03, 2006 2:43 am
Forum: Valved pulsejet forum
Topic: anyone ever try a single flap valve?
Replies: 3
Views: 2833

anyone ever try a single flap valve?

has anyone ever tryed building a valved jet with a single reedvalve instead of the flower shaped petal valves? The valve head would have one big hole for the opening instead of a bunch of little holes and one single flap type valve with a stop and maybe a light weight spring to keep it shut. kinda l...
by grant richardson
Wed Apr 19, 2006 5:25 pm
Forum: Valveless pulsejet forum
Topic: liquid fuel injector for valveless r/c plane engine?
Replies: 11
Views: 5001

re: liquid fuel injector for valveless r/c plane engine?

About throttleing the pj engines. Some people say you cant throttle them at all and others say you can throttle some and then some say you have a fairly wide range of throttle. I talked to steve at bailey jets and he said you cant throttle their engines. If you lower the fuel volume it would lean th...
by grant richardson
Tue Apr 18, 2006 6:25 pm
Forum: Valved pulsejet forum
Topic: somebody's really big jet
Replies: 25
Views: 14274

re: somebody's really big jet

Jeez if it does run it will probably be louder than the space shuttle launch!

I wonder how much fuel it would take to make this bad boy go for 5 mins :D
by grant richardson
Tue Apr 18, 2006 3:30 pm
Forum: Valved pulsejet forum
Topic: Pulse jet silencer?
Replies: 18
Views: 18918

Pulse jet silencer?

Just a thought but it seems possible to silence a pj some using something similar to a silencer on a fire arm Like a 9mm silenced sound more like a 22. Of course its not like the movies and goes shew when they shoot. Guns are still loud when silenced but a 22 is quiet. with subsonic bullets all you ...
by grant richardson
Tue Apr 18, 2006 2:48 pm
Forum: Gas turbine forum
Topic: bigarse homemade turbine
Replies: 1
Views: 2689

bigarse homemade turbine

http://www.gas-turbines.com/thermojet/index.html

i posted a link in the valved forum for a big PJ for this site.