Vacuum generating device, comprising: - a main flow channel which extends along a main flow axis and is delimited by a wall, the main flow channel having an inlet opening and an outlet opening and it being possible for said channel to be flowed through from the inlet opening to the outlet opening along a main flow direction, the main flow channel having an intake portion, a mixing portion and a nozzle portion arranged between the intake portion and the mixing portion, the wall in the region of the nozzle portion extending such that a flow cross-section is present which progressively tapers along the main flow direction; - a drive nozzle arrangement for the inflow of a pressurized fluid into the main flow channel in order to generate a drive flow in the direction of the outlet opening, the drive nozzle arrangement comprising a plurality of drive nozzles which are arranged distributed along a periphery about the main flow axis, this periphery being larger than a flow channel periphery in the mixing portion, the drive nozzles being designed and arranged such that the pressurized fluid flows into the main flow channel along a corresponding inflow axis obliquely to the main flow axis and flows into the mixing portion along a surface of the wall in the tapering nozzle portion by utilizing the Coanda effect, characterized in that the drive nozzles are arranged such that the inflow axes, when viewed in the main flow direction, run towards the main flow axis and intersect it. - a main flow channel which extends along a main flow axis and is delimited by a wall, the main flow channel having an inlet opening and an outlet opening and it being possible for said channel to be flowed through from the inlet opening to the outlet opening along a main flow direction, the main flow channel having an intake portion, a mixing portion and a nozzle portion arranged between the intake portion and the mixing portion, the wall in the region of the nozzle portion extending such that a flow cross-section is present which progressively tapers along the main flow direction; the main flow channel having an inlet opening and an outlet opening and it being possible for said channel to be flowed through from the inlet opening to the outlet opening along a main flow direction, the main flow channel having an intake portion, a mixing portion and a nozzle portion arranged between the intake portion and the mixing portion, the wall in the region of the nozzle portion extending such that a flow cross-section is present which progressively tapers along the main flow direction; - a drive nozzle arrangement for the inflow of a pressurized fluid into the main flow channel in order to generate a drive flow in the direction of the outlet opening, the drive nozzle arrangement comprising a plurality of drive nozzles which are arranged distributed along a periphery about the main flow axis, this periphery being larger than a flow channel periphery in the mixing portion, the drive nozzles being designed and arranged such that the pressurized fluid flows into the main flow channel along a corresponding inflow axis obliquely to the main flow axis and flows into the mixing portion along a surface of the wall in the tapering nozzle portion by utilizing the Coanda effect, the drive nozzle arrangement comprising a plurality of drive nozzles which are arranged distributed along a periphery about the main flow axis, this periphery being larger than a flow channel periphery in the mixing portion, the drive nozzles being designed and arranged such that the pressurized fluid flows into the main flow channel along a corresponding inflow axis obliquely to the main flow axis and flows into the mixing portion along a surface of the wall in the tapering nozzle portion by utilizing the Coanda effect,