In the embodiments of the invention, the outlet device 9 may have the form of an end diffusor of the suction device 6 by means of which the extracted air and the received driving medium is discharged, with {HEAD ~ this end diffusor} being realized with {TAIL ~ a view} to thereby reducing the exit losses 
realized with
In the embodiments of the invention , the outlet device 9 may have the form of an end diffusor of the suction device 6 by means of which the extracted air and the received driving medium is discharged , with { HEAD ~ this end diffusor } being realized with { TAIL ~ a view } to thereby reducing the exit losses
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