Search found 7 matches
- Sat Aug 15, 2015 7:03 pm
- Forum: Valved pulsejet forum
- Topic: Interpreting Westberg's Comments on Intake Size
- Replies: 0
- Views: 7580
Interpreting Westberg's Comments on Intake Size
I read Fredrick Westberg's Essay on Pulsejets and am having trouble understanding some of his broken English. Can anybody help point me towards a more comprehensive source for information on intake size to tailpipe size ratios? I'm specifically trying to figure out how much area should be open to in...
- Fri Aug 14, 2015 10:52 pm
- Forum: Tools and Construction
- Topic: Metal Spinning Viable Construction Method?
- Replies: 2
- Views: 5505
Re: Metal Spinning Viable Construction Method?
I was planning on strapping an array of 4-5 medium sized jets on my jonboat, and I have the lathe and not the welder, so that's why the idea came to me. I guess it's not really any advantage, just an option for folks who want to try some more complex parabolic flares and such.
- Fri Aug 14, 2015 5:53 pm
- Forum: Tools and Construction
- Topic: Metal Spinning Viable Construction Method?
- Replies: 2
- Views: 5505
Metal Spinning Viable Construction Method?
Are any of you familiar with metal spinning on a lathe-like machine? Here's a video for those of you who are curious about the method https://www.youtube.com/watch?v=43N44ICyuEU I was just thinking this could be an easier method for making cones and chamber flares without having to create a template...
- Fri Aug 14, 2015 1:09 pm
- Forum: Valved pulsejet forum
- Topic: No Moving Parts, 1-Way Valve
- Replies: 4
- Views: 8040
Re: No Moving Parts, 1-Way Valve
Ok, I read the article mentioning these baffled methods. I am not surprised that the figure showing the valvular conduit failed. It is far too large a diameter to effectively impede blowback. As I mentioned, the conduits function best at smaller scales and higher pressures. It does not appear that a...
- Fri Aug 14, 2015 12:09 pm
- Forum: Valved pulsejet forum
- Topic: No Moving Parts, 1-Way Valve
- Replies: 4
- Views: 8040
Re: No Moving Parts, 1-Way Valve
Thanks for the information. Sorry to waste space on the board. As for my personal boat, I'm not too worried about the valves wearing. My friend works for a cnc shop, so I'm sure he could cut a whole roll of springsteel for me.
- Fri Aug 14, 2015 3:35 am
- Forum: Valved pulsejet forum
- Topic: No Moving Parts, 1-Way Valve
- Replies: 4
- Views: 8040
No Moving Parts, 1-Way Valve
Hello Pulseheads, I'm just starting to learn about pulsejets, and hope to build a small array this winter for eventual mounting on my small boat. I'll likely use some plans for a reed valve engine, but I was thinking about ways to modify common designs. I read about the failures of rotary valve engi...
- Fri Aug 14, 2015 3:21 am
- Forum: Valved pulsejet forum
- Topic: Rotary valves do not work.
- Replies: 4
- Views: 9516
Re: Rotary valves do not work.
The benefits of a rotary valve would be to reduce valve wear as seen in other designs, no? Why not use the only one-way valve with no moving parts? Tesla's valvular conduit?