PUMPING DEVICE AND CONTAINING IT AN OUTDOOR AIR CONDITIONER UNIT Russian patent published in 2019 - IPC F04D29/54 

FIELD: medicine.

SUBSTANCE: present invention comprises: a belled part (11) located at a predetermined distance in the radial direction relative to the propeller fan (FN) outer circumferential end; and a diffuser part (12) installed on the side further along the belled part (11) and having flow path area that increases from the side closer along the path towards the side further along the path with an increased magnification factor, than the coefficient of increase in flow path area in the downstream end of the belled part (11); and a stator part (2F) having a plurality of stators (22), with the stator part (2F) located in the diffuser part (12).

EFFECT: proposed are pumping device capable of suppressing the occurrence of noise in the stator, while substantially increasing the pumping efficiency, and the outdoor unit using it.

20 cl, 13 dwg