HYDROJET PROPELLER Russian patent published in 2009 - IPC B63H11/08 

FIELD: engines and pumps; shipbuilding.

SUBSTANCE: invention is related to facilities for creation of traction for ship movement, in particular to hydrojet marine propeller. Hydrojet propeller with overhung impeller is arranged in the form of demountable structurally completed module, such as solid of revolution. Module consists of leak-tight vessel, for instance pipe, with driving shaft with bearings installed in it. At that vessel crosses wall of water-diversion channel with clearance fit, and with its other end it is connected via pylons with impeller shell coupled with back cut of water-diversion channel with clearance fit. Nozzle is coupled with back cut of impeller shell with clearance fit and is fixed with locks.

EFFECT: increased manufacturability in production and operation due to isolation of axial shaft into interchangeable structurally completed assembly unit.

1 dwg