ELECTRIC PUMP UNIT Russian patent published in 2009 - IPC F04D13/06 F04D29/44 

FIELD: engines and pumps.

SUBSTANCE: invention is related to machine building and may be used in temperature control systems of aviation and rocket engineering products. Electric pump unit comprises body and electric motor with double-support pump shaft installed in it. Shaft is connected to electric motor shaft via compensating clutch. Clutch bush is installed on electric motor shaft, and clutch torsion shaft is installed in pump shaft cavity and is connected to its with its free end. Bush is arranged as a whole with torsion shaft. Pump shaft is arranged as protruding beyond inlet end of impeller that is most distanced from electric motor. External thread is arranged on projecting end of pump shaft. Pump shaft cavity is arranged as through. Fixator of impeller axial position is arranged in the form of nut installed on external thread of projecting end of pump shaft. Nut, pump shaft and torsion shaft are connected together by means of pin joint.

EFFECT: increase of resource without increase of dimensions.

1 dwg