Abstract: A spray apparatus for spraying a cosmetic liquid by way of electrostatic forces. The spray apparatus includes a fluid supply, at least one feed device, and at least one nozzle comprising a nozzle body, a connection flange, a nozzle channel, a spray opening, and an electrode. The fluid supply is connected to the feed device, the feed device is connected to the nozzle, and the electrode is arranged in the nozzle channel. The electrode is arranged in the nozzle channel such that it has a distance to the spray opening measured along a longitudinal axis of the nozzle channel of at most 2.1 mm and at least 0.0 mm.

Abstract: An atomizer nozzle system, in particular for an electrohydrodynamic atomizer (1), wherein a nozzle cap (40) comprises a plurality of nozzles (10, 11, 12) and, in order to form a nozzle (10, 11, 12) comprises at least one nozzle opening (21, 22, 23), at least one nozzle channel and at least one nozzle socket, wherein the nozzle cap is arranged on at least one carrier and wherein the carrier comprises a nozzle connector for each nozzle socket, wherein the nozzle cap is arranged on the carrier in a releasably fastened manner.

Abstract: 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.

Abstract: An electrohydrodynamic atomizer (Z), as well as a method for operating an electrohydrodynamic atomizer wherein the atomizer comprises an atomizer unit (ZE) and a fluid tank (1), and the atomizer unit comprises the assemblies which are necessary for electrohydrodynamic atomization, wherein at least one assembly comprises a high voltage generator (HV) which provides the high voltage which is necessary for the electrohydrodynamic atomization, and at least one assembly comprises a pump system (P) in order to deliver the fluid which is to be atomized to an atomizer nozzle unit (D), wherein the atomizer unit comprises an assembly with an electronic controller (S), in particular with at least one processor unit, and wherein the fluid tank (1) comprises a data memory (10), wherein a means for exchanging data is formed between the fluid tank (1) and at least one assembly of the atomizer unit.

Abstract: A method for the function control of an electrohydrodynamic atomizer (20), wherein an electrohydrodynamically atomized fluid (23), originating from the atomizer (20), is applied to a body, e.g. a person, in order to coat this body at least in certain areas, wherein the atomizer (20) comprises a fluid tank for storing the fluid (23) and at least one high voltage source for making available a high voltage and at least one pump unit for transporting the fluid, wherein the fluid (23) is delivered to a nozzle arrangement of the atomizer (20) by means of the pump unit, and wherein the fluid (23) is atomized electrohydrodynamically at the nozzle arrangement by means of the effect of the high voltage from the high voltage source, wherein a voltage and/or a current at the high voltage source is evaluated in order to acquire a working point of the high voltage source via a current/voltage characteristic curve.

Abstract: An atomizer nozzle system, in particular for an electrohydrodynamic atomizer (1), wherein a nozzle cap (40) comprises a plurality of nozzles (10, 11, 12) and, in order to form a nozzle (10, 11, 12) comprises at least one nozzle opening (21, 22, 23), at least one nozzle channel and at least one nozzle socket, wherein the nozzle cap is arranged on at least one carrier and wherein the carrier comprises a nozzle connector for each nozzle socket, wherein the nozzle cap is arranged on the carrier in a releasably fastened manner.