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Patent
Title
An electrostatic micro-pump and a process to produce an electrostatic micro-pump
Abstract
An embodiment according to the invention is an electrostatic micro-pump comprising a diaphragm arrangement comprising a diaphragm and a first electrode structure. The electrostatic micro-pump further comprises a valve arrangement, comprising an inlet check valve and an outlet check valve, wherein the diaphragm arrangement and the valve arrangement at least partially enclose a pump chamber. The electrostatic micro-pump further comprises a second electrode structure arranged so as to form an electrostatic drive with the first electrode structure. The electrostatic drive is configured to deflect the diaphragm. The electrostatic micro-pump further comprises at least one anti-stiction bump arranged between the first electrode structure and the second electrode structure, wherein in an inactive state of the micro-pump, a spacing between the first electrode structure and the second electrode structure varies towards a center region of the pump chamber when starting from a peripheral region of the pump chamber, wherein the peripheral region encloses the center region.
Inventor(s)
Patent Number
WO2022053132 A1
Publication Date
March 17, 2022
Language
English