Diaphragm pump and method for non-contact operation of the membranes of several working spaces of a diaphragm pump

摘要

Shown and described is a membrane pump (1) for conveying a gaseous and / or liquid medium, with at least one deformable membrane (2) for changing the size of a working space (3) of the membrane pump (1) and with at least one actuator unit (4) Deformation of the membrane (2) by contactless loading of the membrane (2) by means of a magnetic field, wherein the membrane (2) comprises a material or consists of a material which is magnetic and / or magnetizable, and the actuator unit (4) at least one magnetic and / or magnetizable actuator means (7). According to the invention, the actuator unit (4) is rotatably mounted and the diaphragm (2) arranged circumferentially to the actuator unit (4), wherein in a dead center position of the membrane (2) the polarization direction of between the material of the membrane (2) and the actuator means (7) formed Magnetic field is aligned radially to the axis of rotation of the actuator unit (4).