www.pulse-jets.com

Luc wrote,

So... there you have it my friend
Am I not a nice guy or what? ... He he he

Yes, very nice. Thank you. Now that you say it, it sounds so obvious.

Regards,
Raymond

A bit off topic. Does anyone know what the pressure range is for a Coleman propane canister? Does anyone have experience using them for propulsion experiments?

Thanks,
Raymond

A bit off topic. Does anyone know what the pressure range is for a Coleman propane canister? Does anyone have experience using them for propulsion experiments?

Thanks,
Raymond

Zoltans,

I would love ot hear more about your induction jet engine. Would you be willing to share more about it? What thrust levels have you achieved?

Regards,
Raymond

Luc, I'm awake. I'm running low on ideas though. As I mentioned before, variable length ejectors and exhaust pipe might do the trick. The pipe might be the easiest to implement. The ejectors' positions would also need to be adjusted to keep inlets/outlets at the same relative positions. Another coar...

Luc, The trouble I have with the Gluey equations as presented in the Riley manual, is that they do not really allow you to design an engine. The example for the 3rd stage injector calculates stage average temp from a known length. To go the other way around would require some guessing or measuring. ...

Hinote and Milisavljevic,

Beautiful work. I've been hanging out in the pressurejet forums, and just thought I would take a peek. Seems I picked the right day to do it!

Bill,
I notice you're in Centrall California. I'm in Chico, up north. Where are you located.

Regards,
Raymond

Why is it dangerous ... Explain please. I see no danger in blowing compressed air in the intake stack. This could be easy to do concidering that I have a 2000 psig. Nitrogen bottle here. I could easily pressurize the stack through the nozzle under 225 psig. and if it is tunned or tune it. Please ex...

Luc, I don't neccessarily suggest that you go in a completely new direction, just that another simple test might be in order. When you run the engine, operationally, do you just wait for the nozzle temp to reach a certain value and then open the throttle? Or do you slowly raise the throttle through ...

Zoltans, I just want to confirm. As I understand your posts, you say that you have a G8-2-130R and that you have been able to get the claimed 130 lbf thrust out of it. I just want to hear you confirm it so that we all can know once and for all that this design is not just vaporware, but is truly cap...

Luc, Zoltan's posts seem to me to change the scenary a lot. In a previous post, I mentioned: 2. If you do not have tuned induction, you will not have enough airflow. I wish I could find it, but I saw a couple years ago a tech report where the investigators tested ejectors of varying length, and foun...

Zoltans Wrote: I have spent some time studying the G8-2-130R engines because I am hoping to make a flying car. Thanks for posting zoltans. It sounds like your knowledge and experience are exactly what Luc was looking for when he started this thread. Your Induction jet design on your website looks ve...

Criky! found a mistake already.

ii) Result is engine wants to run a little lean, and therefore hot........
v) This leads to an even greater leaning and consequent increase in combustion heat.

I meant rich, not lean.

Sorry if I confused anyone.
Raymond

Wow, First Luc and Patrick, Thank you so much for running these tests and sharing your results and photos with everyone. Your efforts are greatly appreciated. Now,... Luc, I know you are getting anxious to run some more CFD, but this new information sheds new light, and I am not sure yet that that i...

Liquid propane cylinder : Full @ 58 pounds 4 onces, Empty @ 30 pounds. Fuel consumption was : 28 pounds 4 onces of liquid propane. Running time was : 4 minutes 43 seconds Ambient Temperature was : 63 °F Thrust recorded was : 46 pounds Coils inlet propane Temperature was : 39 °F Nozzle temperature...