An Airflow Generator

Abstract: The present disclosure relates to an airflow generator (1) and to a transformer arrangement the airflow generator (1) and a transformer (11) provided with an oil-to-air external heat exchanger (6), said airflow generator (1) being configured to discharge air towards the oil-to-air heat exchanger (6). The airflow generator comprises: an electrically powered ducted fan (2) provided with an inlet (3) and an outlet (4), a fluid conduit (5); and an air multiplier (7) for discharging air along a first axis (A). The air multiplier (7) comprises an inlet (8) and an outlet (9), said fluid conduit (5) fluidly connecting the outlet (4) of the ducted fan (2) to the inlet (8) of the air multiplier (7). The air multiplier (7) further comprises a spiral-shaped portion extending around the first axis (A).

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