the invention relates to the field of liquid inhalation devices. in particular, the invention relates to an inhalation device with improved flow characteristics. a device for inhaling medicinally active liquids (f) for generating an aerosol comprises a housing (1), within this housing (1), a reservoir (2) for storing a liquid (f), a pumping device with a cylinder hollow (9) providing a pumping chamber (3) for generating a pressure inside said pumping chamber (3), in which the pumping chamber is fluidly connected to the reservoir (2) through an inlet check valve (4) that blocks towards the reservoir (2), a riser tube (5) that can be received with at least one inner end (5a) facing the reservoir in said hollow cylinder (9) and a nozzle (6) that it is connected liquid-proof to an external end (5b) of the riser tube (5), in which the volume of the pumping chamber (3) is changeable by means of relative movement of the cylinder (9) in relation to the riser tube (5 ) and is characterized by the riser tube (5) being immobile and firmly attached to the housing (1) and to the nozzle (6), while the hollow cylinder (9) is movable in relation to the housing (1) and the nozzle (6). the invention also describes a method for generating an aerosol from a medicinally active liquid (f) by means of an inhalation device.a invenção se refere ao campo de dispositivos de inalação para líquidos. em particular, a invenção se refere a um dispositivo de inalação com características de fluxo melhoradas. um dispositivo de inalação de líquidos medicinalmente ativos (f) para geração de um aerossol compreende um alojamento (1), dentro deste alojamento (1), um reservatório (2) para armazenar um líquido (f), um dispositivo de bombeamento com um cilindro oco (9) fornecer uma câmara de bombeamento (3) para a geração de uma pressão dentro da referida câmara de bombeamento (3), em que a câmara de bombeamento é conectada fluidamente ao reservatório (2) através de uma válvula de retenção de entrada (4) que