Compress Air with No Moving Parts! - Trompe - YouTube
Hydro powered air Compressor (not a trompe!) (hydro forum at permies)
Compress Air with No Moving Parts! - Trompe - YouTube
History and Future of the Compressed Air Economy | LOW←TECH MAGAZINE
Coppia di clacson trompe con compressore doppio suono per auto, camion, barca, furgoni, 12 V : Amazon.it: Auto e Moto
Hydropower - Polarpedia
Design of a Trompe / Hydraulic air compressor (notice lack of moving parts! - requiring little maintenance) | Aerospace design, Alternative energy, Low tech