Reversible cavitation propulsion unit has force varied betweebn zero and maximum in both directions by moving vaned wheel between two discs

摘要

The propulsion unit consists of a centrifugal vaned wheel (2) driven by an external motor (4) between two discs (1) which are subjected to pressure created by cavitation when the wheel rotates at high speed. The propulsive force is variable between a maximum and zero in one direction and between zero and a maximum in the other by moving the wheel axially between the discs. The wheel has a cylinder (9) passing through its centre to allow a flow of fluid to pass between the discs when the wheel is in an intermediate position.