Weisener, T.T.WeisenerVoegele, G.G.VoegeleWidmann, M.M.WidmannBark, C.C.BarkHoch, A.A.Hoch2022-03-082022-03-081997https://publica.fraunhofer.de/handle/publica/303665The micropump (1) has a sleeve axis (101) and an off-set rotation axis (100). Inside a sleeve (60), an inner rotor (20) is in a comb engagement with an outer rotor (30). At least an outlet side pressure opening of a first end insert part (42) inserted into the larger diameter sleeve (60) is aligned in the axial direction. A second insert part may have an inlet suction opening which is aligned in the axial direction. A groove may be provided on the inner side of the insert(s), which groove opens into a main part of the half of the conveyance chamber between the inner and outer rotor. The volume of this chamber changes cyclically with the comb engagement. USE - For dosing apparatus and in medical engineering for driving a micro-cutter or blood-flow support pump ADVANTAGE - Has simple construction but efficient and effective pumping.de608670patent1996-19622722