PUMP SYSTEM
A pump system for an atomizer nozzle system having at least two atomizer nozzles, in particular for an electrohydrodynamic atomizer as well as a method for operating an electrohydrodynamic atomizer, wherein the pump system comprises at least one hose assembly as well as at least one pump rotor ( 7 ) and at least one rolling body ( 6 ) for forming a rolling region of a peristaltic pump, wherein the hose assembly comprises at least the same number of hose channels as the number of atomizer nozzles, and in that each hose channel is assigned to an atomizer nozzle and connects it to the rolling region.
1 . A pump system for an atomizer nozzle system having at least two atomizer nozzles, in particular for an electrohydrodynamic atomizer, wherein the pump system comprises at least one hose assembly as well as at least one pump rotor and at least one rolling body for forming a rolling region of a peristaltic pump, wherein
the hose assembly comprises at least the same number of hose channels as the number of atomizer nozzles, and in that each hose channel is assigned to an atomizer nozzle and connects it to the rolling region.
2 . The pump system as claimed in claim 1 , wherein each hose channel connects a fluid tank directly to an atomizer nozzle through the rolling region.
3 . The pump system as claimed in claim 1 , wherein a hose channel runs from a fluid tank to a point upstream of the rolling region, upstream of the rolling region there is formed a distribution into at least two, preferably three or more, hose channels, and these hose channels are arranged such that they run through the rolling region up to in each case one atomizer nozzle which is assigned to the respective hose channel.
4 . The pump system as claimed in claim 1 , wherein at least one atomizer nozzle is connected to at least two hose channels.
5 . The pump system as claimed in claim 1 , wherein at least two, preferably four, rolling bodies are formed, wherein each rolling body is assigned to at least one hose channel.
6 . The pump system as claimed in claim 1 , wherein at least two, preferably three, pump rotors ( 7 ) are formed, wherein each pump rotor moves at least one rolling body ( 6 ) and is assigned to at least one hose channel ( 22 ).
7 . A method for operating an electrohydrodynamic atomizer, wherein the atomizer comprises at least one, preferably three or more, atomizer nozzles ( 70 ), wherein
a pump system as claimed in claim 1 is included, and a defined volume flow of a fluid ( 42 , 75 , 55 ) is forced onto each atomizer nozzle ( 70 ) via the pump system.
8 . The method as claimed in claim 7 , wherein a hydraulically generated open jet ( 44 , 57 , 77 ) in the form of a fluid column is produced at the outlet of an atomizer nozzle ( 70 ) and brings about atomization ( 79 ) only after an open jet region as a result of electrohydrodynamic interaction.
9 . The method as claimed in claim 8 , wherein when an opening in the atomizer nozzle ( 70 ) has a diameter of 0.1 mm to 0.3 mm and/or a fluid channel in the atomizer nozzle ( 70 ) has a length of 3 mm to 15 mm an open jet ( 44 , 57 , 77 ) of 10 mm to 15 mm is formed.