CENTRIFUGAL HYDRAULIC AND AIR PUMP-COMPRESSOR Russian patent published in 2009 - IPC F04D31/00 F04D27/02 

FIELD: engines and pumps.

SUBSTANCE: invention relates to compressor and pump production and can be used in systems that require automatic control over the efficiency. The pump wheel rotor incorporates coating disk that moves axially and is furnished with cuts receiving the blades. The force resulted from pressure difference in rotor wheel channels and behind the coating disk moves the latter to narrow the rotator wheel flow section and to compress the spring with pressure increasing and flow rate decreasing in the system. With the flow rate increasing in the system, the spring moves the coating disk in opposite direction to widen the wheel rotor flow section.

EFFECT: stable operation of compressor (without surge), power savings in operation.

3 dwg