SCREW-RING SYSTEM OF AMPHIBIOUS HOVERCRAFTS Russian patent published in 2019 - IPC B60V1/14 B60V3/06 B63H7/02 

FIELD: transport machine building.

SUBSTANCE: invention relates to propelling complexes of amphibious hovercrafts (AH). Screw-ring system (SRS) AH comprises two or more propellers, enclosed, each, into annular nozzle (AN) with a wing aerodynamic profile of its cross section. Each SC rests using blades of straightening apparatus on fairing of propeller reduction gear, which its aft end is connected to the front end of the nacelle of the traction engine AH, located on pylon-stabilizer installed on upper deck of housing AH in transverse row with other pylon(s)-stabilizer(s), and using box-shaped bracket to lower part of its stabilizer pylon. Encased under continuous outer shell of each AN its internal structure is assembled by means of mechanical fastener from several identical volume segments with located between them in planes passing through axis of propeller rotation, flat ribs. Flat ribs located in horizontal plane AN, adjacent adjacent flat neighboring ribs AN(s) are connected to flat connecting panel(s) located between adjacent AN in the same horizontal plane. Connections are made by means of mechanical fixture passed through flanges bent downwards, by which adjacent edges of said elements are equipped SRS. Each flat connecting panel is reinforced by an additional connected to it from above an additional uncoupled to adjacent AN panel.

EFFECT: technical result consists in improvement of efficiency and operational reliability SRS AH.

4 cl, 8 dwg