| Element (structure) |
Modern |
Perspective |
| SPC structure and components |
| SPC components |
“AMSC – MPP” |
AD with flow-through rotor |
| Cooling |
Cooling system |
Gas flow |
| Type of bearings |
Plain |
AMB |
| Parts of suspension |
Two-radial and one-axial |
Two conical |
| Type of junction |
Reduction gear |
Without reduction gear |
| Electrical technical equipment of SPC |
| Type of motor |
AMSC |
SMPM |
| FC structure |
Two-link |
Distributed |
| Electricity supply |
Three-phase |
HVDC |
| ACS |
Nonvector |
Multi-structure vector |
| Gas dynamic elements of SPC |
| Components of the unit |
One motor – one pump |
One motor – several pumps |
| Shaft |
Common shaft |
Flow-through rotor |