Hi guys. I have found this interesting patent of an air-less or self-starting VALVED pulse jet...yes I said VALVED.
It ' really rare design.take special attention to the valve system.It's a flooping diaphragm between two plates with holes.
I don't know if it really works, I supossed if it's patented it should. waiting for your comments.
Self-starting VALVED ! ! ! (patent)
Moderator: Mike Everman
Self-starting VALVED ! ! ! (patent)
- Attachments
-
- Pulse jet fogger patentpdf.pdf
- (192.66 KiB) Downloaded 654 times
-
- Posts: 3542
- Joined: Sat Oct 04, 2003 7:31 am
- Antipspambot question: 0
- Location: Zagreb, Croatia
Re: Self-starting VALVED ! ! ! (patent)
It should work, but it's almost certainly useless for anything but fogging. The diaphragm valve is slow, with great inertia and cannot follow the pressure swings in the engine quickly enough to be very effective. Good for what it is, but not good as an engine, I'm afraid.
Re: Self-starting VALVED ! ! ! (patent)
I don 't know if it won't be an effective engine. (in terms of power).
Someone has tried this kind of valve arrangement before? (the flooping diaphragm)...if someone has, what where the results?.
Someone has tried this kind of valve arrangement before? (the flooping diaphragm)...if someone has, what where the results?.
-
- Posts: 557
- Joined: Thu Oct 09, 2003 10:36 pm
- Antipspambot question: 0
- Location: Pennsylvania - USA
Re: Self-starting VALVED ! ! ! (patent)
Hi,
Figure 29 in the Russian pulsejet manual shows two rectangular floppy valves, but since I can't read Russian I don't know what the article says.
Al Belli
Figure 29 in the Russian pulsejet manual shows two rectangular floppy valves, but since I can't read Russian I don't know what the article says.
Al Belli
-
- Posts: 465
- Joined: Thu Jan 27, 2005 4:57 pm
- Antipspambot question: 0
- Location: Ohio, USA
Re: Self-starting VALVED ! ! ! (patent)
Hi, Guys,
Some time in the early 1950s, a German company developed and sold a hand-carried insecticidal fog generator, called the "Sving Nebler," that employed a resilient material, disc valve. While working for Curtis in 1953-54, we acquired one and I ran it many times, finally dismantling it to study its innards. Very ingenious, it worked well and the valve lasted quite a while.
We developed what became the Curtis Dyna-Fog, Jr. (still made,) employing several (unpatentable,) features of the S-N. Aeromarine's earlier DFG, Jr. was water-cooled and was a nuisance because of its weight, size, and the need to replenish the water. When Russell Curtis bought Aeromarine and I joined his company, we abandoned the original concept. I still have the original in my backyard shed, along with an early Curtis DFG, Jr.
Jerry
Some time in the early 1950s, a German company developed and sold a hand-carried insecticidal fog generator, called the "Sving Nebler," that employed a resilient material, disc valve. While working for Curtis in 1953-54, we acquired one and I ran it many times, finally dismantling it to study its innards. Very ingenious, it worked well and the valve lasted quite a while.
We developed what became the Curtis Dyna-Fog, Jr. (still made,) employing several (unpatentable,) features of the S-N. Aeromarine's earlier DFG, Jr. was water-cooled and was a nuisance because of its weight, size, and the need to replenish the water. When Russell Curtis bought Aeromarine and I joined his company, we abandoned the original concept. I still have the original in my backyard shed, along with an early Curtis DFG, Jr.
Jerry
Louder is always better.