Valve Grid plans?? Help
Moderator: Mike Everman
Valve Grid plans?? Help
Hey everyone. I have been looking at this site for a while and i finally decided to build a pulsejet. i finished a dynajet and im moving up. I need plans or pictures of a valve grid so i can try to design one to fit the dynajet as a experiment to see if it increases thrust. Plus i need them because im going to build a 50 lb thrust jet next. Thanks everyone
The SRL website has some interesting pictures. No.13 is particuarly revealing for getting an idea of the construction.
http://www.srl.org/machines/v1/pix/
http://www.srl.org/machines/v1/pix/
-
- Posts: 181
- Joined: Sun Oct 05, 2003 2:54 pm
- Antipspambot question: 0
- Location: the Netherlands
- Contact:
this link was posted a few weeks ago.
http://updates.webchamps.com/pulsejets
I think it was the first file that contains plans for an easy to make valvegrid. If you built it, please show it here!
Pieter.
http://updates.webchamps.com/pulsejets
I think it was the first file that contains plans for an easy to make valvegrid. If you built it, please show it here!
Pieter.
-
- Posts: 35
- Joined: Fri Dec 19, 2003 6:20 am
- Antipspambot question: 0
- Location: Salt Lake, UT, USA
- Contact:
I was going to do a better job of laying this out and then posting this later but since it was brought up I would appreciate comments.
I am building a pulsejet off of Eric Beck’s calculator for a 25lb of thrust. I tried to keep the valves to fit in a 3x3 square. I did this so that I could put the assembly into a square whole milled into the head.
I was hoping on making the red parts out of .05 titanium, the blue retainers out of stainless, and the green plate out of aluminum. I would hold the spring steel in half by folding it in half and screwing the retainer into place over it. The retainer would be held down by 2: 10-24x5/8 screws that go through each side. What thickness of spring steel should I use?
The view on the right is how I plan on cutting the metal. The actual openings sum up to 5.184 sq.in. How much of that area will be usable? I was told that when making the head, the opening should taper down to a diameter that is equal to the effective valve area. I don’t know how efficient it will be.
I don’t know how machining titanium is going to work. If that fails I plan on using 0.1 stainless steel. Hopefully this will assemble quickly and I will post pictures.
Thanks
Chris Romano
I am building a pulsejet off of Eric Beck’s calculator for a 25lb of thrust. I tried to keep the valves to fit in a 3x3 square. I did this so that I could put the assembly into a square whole milled into the head.
I was hoping on making the red parts out of .05 titanium, the blue retainers out of stainless, and the green plate out of aluminum. I would hold the spring steel in half by folding it in half and screwing the retainer into place over it. The retainer would be held down by 2: 10-24x5/8 screws that go through each side. What thickness of spring steel should I use?
The view on the right is how I plan on cutting the metal. The actual openings sum up to 5.184 sq.in. How much of that area will be usable? I was told that when making the head, the opening should taper down to a diameter that is equal to the effective valve area. I don’t know how efficient it will be.
I don’t know how machining titanium is going to work. If that fails I plan on using 0.1 stainless steel. Hopefully this will assemble quickly and I will post pictures.
Thanks
Chris Romano
- Attachments
-
- Valve Dim.jpg (24.79 KiB) Viewed 7124 times
-
- Valve 3d.jpg (38.47 KiB) Viewed 7124 times
I don't wish to know everything.
I just wish not to be ignorant.
I just wish not to be ignorant.