PRESSURE BOOSTER FOR UNDERWATER OPERATIONS Russian patent published in 2017 - IPC F04D13/08 F04D13/02 

FIELD: engines and pumps, machine building.

SUBSTANCE: underwater turbomachine includes electric motor and compressor or pump driven by electric motor, fluid medium inlet and outlet. Turbomachine includes housing, which is common for electric motor or stator and compressor, pump or rotor; magnetic transmission inside housing for immediate connection of motor or stator and compressor, pump or rotor; at least, one shaft with bearings in form of one shaft and one shaft for pump or compressor or only one shaft for rotor and pump or compressor and partition inside housing, arranged so, that to tightly separate engine compartment or stator from compressor, pump or rotor compartment. Magnetic transmission outer wheel is connected to motor shaft or represents stator, and magnetic transmission inner wheel is connected to compressor or pump shaft or represents rotor, or vice versa. Each shaft is suspended by means of radial bearings and, at least, one thrust bearing. Turbo machine also comprises pressure equalization system, including two control valves, controlled based on pressure difference measurement between said compartments.

EFFECT: invention is aimed at increasing of turbomachine reliability due to increasing protection of leak-tight partition.

16 cl, 9 dwg, 2 tbl