www.pulse-jets.com

http://defense-update.com/20111114_unmanned-systems-unveils-the-orca-tip-jet-uav-at-dubai-2012.html Here is a system that performs almost as I described earlier in this thread, using a gas turbine to generate high velocity air to tip-jets on blade ends. My concept uses the single rotor turbine desig...

unclematt wrote:By the way, does anyone know of David Platts? He once worked for LANL, but his email has changed so I was unable to find out about his invention, the single rotor turbine. If anyone know his contact info, please let me know. thanks!

I was able to contact him today

I was able to contact the inventor of this concept, and we are discussing its viability and application. I will share details as soon as he gives the green light.

By the way, does anyone know of David Platts? He once worked for LANL, but his email has changed so I was unable to find out about his invention, the single rotor turbine. If anyone know his contact info, please let me know. thanks!

I have been doing more research, and have come across quite a bit of material about air entraining nozzles which could be employed in this concept. You can read one such piece here: http://etd.gatech.edu/theses/available/etd-10022008-164716/ If a single rotor could contain both compressor and turbin...

Hi Matt (I assume your names Matt?;-) Ok that's fine as I tend to agree with John on the lot of points for Tip jet propulsion (having done a bit of work in that area) moving on, the proposal looks interesting but I am sure I have seen other examples of this combined turbine/compressor wheel configu...

Hi Having read the other thread I cant see this one and the other thread are going to be the same? you seemed to be talking about props in the other thread? Viv No, this thread is about the impeller/turbine alone, and whether it is feasible or not, not the prop idea I put forth in the other thread....

I posted this in the gas turbine forum as part of another concept I am working on, but felt the unusual nature of this concept compressor/turbine on a single rotor deserved its own thread. John felt it was an "unworkable" concept, but I am seeking alternate opinions. Take a look here: http://www.p2p...

For those who would like more info on this advanced turbine impeller that I want to employ in my concept: http://www.p2pays.org/ref/20/19269.pdf I couldn't find any recent info about this, so it may be as John said it was. Still, if it works it would allow me to do away with the mechanical coupling ...

I found a method to capture energy from the combustion stream, while still only using a single turbine wheel, that I can incorporate into my concept. Take a look at patent #6807802 for an idea of what I am talking about. It also makes it possible to use higher fuel to air ratios without worry of mel...

Hey John, I appreciate all of your comments as they give me areas to focus on when searching for solutions. I am a little concerned with comparing the jets you are used to working with to what I am suggesting, as they are 2 different animals. I have been considering your last post, and after reading...

Hi I started reading the report and theres too much difference between what you propose and this study to make it applicable . Firstly they used cold air , .................where is your working fluid coming from ?? How is your working fluid compressed ?? Where is the horsepower for compression com...

Eureka! I found a study done on a rotor very similar my idea except for the hub mounted impeller/combustor. It is here: http://handle.dtic.mil/100.2/ADA279680 This is experimentation done on a 6.6 foot rotor, with cold cycle, and blown blade trailing edges and tip-jet nozzles. I read the whole thing...

Hi Don't worry about fuel , turbines will burn just about anything if designed correctly . Get the books and read them several times , they may be for models but they relate to much larger units as the maths don't change all that much , gas turbines scale up rather well . Once you've read the books...

Take a look at this pic: http://www.grc.nasa.gov/WWW/RT/RT2001/images/7725cunningham-f2.jpg http://www.grc.nasa.gov/WWW/RT/RT2001/images/7725cunningham-f3.jpg My idea is very similar, the difference is the impeller and combustor would be in the blue hub (in the first photo) with the gases flowing di...