Moderator: Mike Everman
Or you can knock a person's hat off 20 feet away. http://www.zerotoys.com/Merchant2/merch ... _Code=AZ01Viv wrote:Thanks Andrew I had forgotten all about that web site from the old Acoustics group days.
Attached is a nice little picture of a mass flow leaving the end of a pipe and generating a vortex and also you can see the shock front of the compression wave preceding it.
Imagine this at the boundery of the two exhausts in the EP.
Viv
Important principles are contained in their work and it does bear on ours, attached (I hope) is a document well worth reading that gives some details of the principles involved.Bruce wrote:> Also, check out
>http://www.macrosonix.com/other_te
> chnologies.htm to see what
> pressures can be acheived
> acoustically.
Ah, but we're talking a whole different kettle of fish with those acoustic resonators.
The accumulate the energy of many hundreds (or thousands) of individual pressure waves into a single pressure differential.
With a pulsejet we only get *ONE* pressure-wave per operating cycle.
There's no accumulation of energy -- what you get from a single combustion cycle is all you've got to compress the next charge.
I saw this and thaught of you:-)brunoogorelec wrote:
Do you have an example of someone who got the Schmidt tube to work? Please share it with me if you do, as I have never found a single (not one!) photograph of a Schmidt engine, built either by him or anyone else, ever, apart from the Schmidt-Argus. I have not seen even an authoritative description of a real machine by someone who knew what he was talking about and provided the basic data (who, where, when etc.) never mind a photograph.
there is no reverse breathing.
You see there is a god and he does listen to what you want and then he arranges for you to have it:-)brunoogorelec wrote:Viv,
OK, now you only owe me the Logan and the Holzwarth! :o)
Funny; I received the same picture just yesterday. It never ever rains, but when it does, it pours buckets.
It may provide comfort to you that Schmidt knew of Marconnet and Karavodine, but was apparently unaware of Esnault-Pelterie.
Oh, I like that conical valve. Out of what document/book did you find it and is there any in depth look at the cone valve? What a nice find to add to the museum of pulsejet ideas.Viv wrote:I saw this and thaught of you:-)brunoogorelec wrote:
Do you have an example of someone who got the Schmidt tube to work? Please share it with me if you do, as I have never found a single (not one!) photograph of a Schmidt engine, built either by him or anyone else, ever, apart from the Schmidt-Argus. I have not seen even an authoritative description of a real machine by someone who knew what he was talking about and provided the basic data (who, where, when etc.) never mind a photograph.
there is no reverse breathing.
Viv
It looks a tad bit more complex than reed valves to make. I wonder what the center shape does and those vanes? on the right side that look like they cover/shutter the array of little cones.brunoogorelec wrote:I think it's from Schmidt's own paper on the development of his engine.