This seems to be a known technology. Here's a paper: "THREE-DIMENSIONAL SIMULATION OF A VALVELESS PUMP" J. Shin and H.J.Sung", Kaist (2010) [1] It's not quite the same, though. Rather than using turbulence, it uses an impedance mismatch as an obstacle to flow. The idea is to have two impedance mismatches in opposite directions from the pinch point, but at different distances. You get some reflection from each impedance mismatch. So if you choose the right driving frequency, you get the reflections opposing movement in one direction and helping it in the other.
This is a lot like the way some antennas are driven. RF also has impedance mismatches. But not turbulence. (Fortunately, or RF engineering would be really hard.)
It would be interesting to see if something like this could improve efficiency in valveless pulse jets. Valveless pulse jets rely on different inertia in two air paths to pull fresh air back in one of the exhaust pipes to refill the combustion chamber.
Valveless pulse jets are loud and inefficient, but they're reliable, tolerant of manufacturing defects, and cheap to produce. Of course, acoustic effects providing the only compression above ambient pressure is going to fundamentally limit combustion pressures and temperatures, and thereby thermodynamic efficiency, but I think valveless pulse jets operate significantly below their Carnot / Brayton efficiencies.
I can see where you're coming from, being on it relying on differential pressures and turbulence to ensure certain flow characteristics... but then again, I wouldn't really say there was any particular unique concept at work here.
I wonder if this is interesting to look at topologicaly? Flow dynamics picks out the network connectivity/handedness/etc... Maybe I am over thinking it while simultaneously under thinking it. ;)
The circulator[1] is an analogous component in rf, it send the incident power from any port down to the next port, so you can take one port to be the bidirectional connection, and it splits the signal into transmit and receive connections.
Just realized if it did this would make a very simple rectifier. I guess you could test it by putting ends of a wire with a galvanometer on it to different parts of an antenna and see if you get a current.
This is a lot like the way some antennas are driven. RF also has impedance mismatches. But not turbulence. (Fortunately, or RF engineering would be really hard.)
[1] flow.kaist.ac.kr/bbs/download2.php?bo_table=pro_domestic&wr_id=93&no=0