Underwater propeller device with pulsed jets

Andrea Arienti (Inventor), Francesco Giorgio-Serchi (Inventor)

Research output: Patent

Abstract / Description of output

The present invention refers to a device, which is autonomous or which can be associated with another structure, for propulsion in a liquid environment, which can be used in many fields, from underwater exploration to checking on and maintaining equipment to mini-invasive surgery. More precisely, the invention relates to an underwater propeller device comprising: a bladder body completely made of a soft material, developing along and around a central longitudinal axis, defining an internal chamber between a dorsal wall and a ventral wall; in said bladder body, an inlet opening and an outlet opening of a liquid in and out of said chamber, arranged at a longitudinal end of the body; and drive means for driving a contraction of said bladder, arranged on said dorsal wall and comprising a mechanical connection with said ventral to cyclically attract the ventral wall to the dorsal wall, thereby causing a pulsed ejection of a propeller jet from said chamber through said outlet opening.
Original languageEnglish
Patent numberWO/2013/160801
IPCB63H 11/02 (2006.01),B63H 11/04 (2006.01)
Filing date16/04/13
Publication statusPublished - 1 Oct 2013


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