PUMP AGGREGATE Russian patent published in 2005 - IPC

FIELD: vane pumps, possibly used in nuclear power stations in main circulation pumping aggregates of first loop of heat transfer agent of nuclear power plant.

SUBSTANCE: pump aggregate includes vane pump with vertical shaft, electromagnetic discharging apparatus with fixed annular electromagnet, reverse prevention mechanism having stationary ratchet ring and fixing members. In reverse prevention mechanism gear ratchet ring of internal engagement is embraced wheel by means of annular electromagnet. Each fixing member is arranged with possibility of rotation on axle joined with shaft of pump and parallel relative to pump rotation axis. In each fixing member mass center is shifted from its mounting axis and it is elastically joined with shaft of pump. Invention provides reduced ventilation effect, lowered leakage of working liquids out off cooling systems of bearing assemblies of pump aggregate, lowered efforts acting upon fixing members, upon their axles and mounting parts, simplified control of gap between disc and annular electromagnet.

EFFECT: improved safety of working personal.

4 cl, 4 dwg