LOW SPEED JET PROPULSION UNIT Russian patent published in 2023 - IPC B63H11/10 B63H5/16 

FIELD: shipbuilding.

SUBSTANCE: invention relates to jet propulsion of ships and other watercraft. The low-speed jet propulsion unit consists of a conduit with a protective grill, which is connected to a rotary nozzle with a reverse damper. The conduit has an inlet cross-sectional area of 0.57 m² and is connected to the pump casing, the cross-sectional area of which is 0.11 m². The pump casing has a nozzle, in the inner space of which there is a straightener having a cross-sectional area at the outlet equal to 0.08 m².

EFFECT: ensuring the speed of the ship with a low-speed jet propulsion equal to the speed of the ship with a high-speed jet propulsion at the same load, but with a lower speed of the impeller and the power consumption of the low-speed jet propulsion.

3 cl, 3 dwg, 1 tbl