Various implementations include a feedback type and jet interaction-type fluidic oscillator devices with atomized output. The device includes first and second fluidic oscillators. Each of the first and second fluidic oscillators include an interaction chamber, a fluid supply inlet, an outlet nozzle, and first and second feedback channels. The first feedback channel of the first fluidic oscillator share a common intermediate portion such that the first feedback channels are in fluid communication with each other, causing the fluid streams exiting the outlet nozzles of the first fluidic oscillator and second fluidic oscillator to oscillate in phase with each other. The outlet nozzle of the first fluidic oscillator and the outlet nozzle of the second fluidic oscillator are structured such that the fluid streams exiting the outlet nozzle of the first fluidic oscillator and the outlet nozzle of the second fluidic oscillator collide with each other, creating an atomized spray.

A nozzle includes an inlet end having one or more inlet apertures and an outlet end having one or more outlet apertures. The nozzle includes a body member that extends between the inlet end and the outlet end. In some embodiments, the nozzle includes a central member that extends centrally through the body member. The nozzle includes an end member fixedly coupled with the central member at the outlet end. The nozzle includes a slidable member translatably coupled with the central member. The slidable member is configured to direct fluid that flows through the body member outwards towards an inner surface of the body member and translation of the slidable member adjusts a K-factor of the nozzle.

A removal system (1) for a container designed to receive a fluid, with an extraction head (4) and a dip tube (5) that can be fastened thereto. By means of the extraction head (4), fluid can be removed through the dip tube (5) from the container (3) or fluid can be fed into the container (3). The extraction head (4) can be fastened to the dip tube (5) by a displacement movement. Alternatively or additionally, a target position of the dip tube (5) at the extraction head (4) is monitored by means of an optical sensor (12).

A removal system (1) for a container designed to receive a fluid, with an extraction head (4) and a dip tube (5) that can be fastened thereto. By means of the extraction head (4), fluid can be removed through the dip tube (5) from the container (3) or fluid can be fed into the container (3). The extraction head (4) can be fastened to the dip tube (5) by a displacement movement. Alternatively or additionally, a target position of the dip tube (5) at the extraction head (4) is monitored by means of an optical sensor (12).

There is provided a spray gun configured to atomize a liquid by using a compressed gas. The spray gun comprises: a gas cap configured to inject the compressed gas; and a liquid nozzle configured to inject the liquid, wherein the gas cap comprises a center gas flow path that has an opening provided in a neighborhood of the liquid nozzle; and multiple pairs of side face gas ports provided outside of the opening, each pair of the side face gas ports being placed at positions symmetric to each other across a center of the liquid nozzle and being directed toward a center in an injecting direction of the liquid nozzle, and wherein control is made to individually regulate a pressure of the gas to be injected from each pair of the side face gas ports.

A shower jet outlet nozzle includes a hollow chamber (1), a lateral wall (2) delimiting the hollow chamber transversely to a nozzle longitudinal axis (D.sub.L), and a bottom (3) delimiting the hollow chamber in the direction of the nozzle longitudinal axis on an outlet side, which bottom is made of an elastic material and in which a jet outlet opening structure (4.sub.S) including one or a plurality of jet outlet openings (4) and having an open initial configuration, wherein the bottom is configured with the jet outlet opening structure thereof, under the effect of a shower fluid operating pressure in the hollow chamber, to deform in an elastically resilient manner and thereby to steadily increase an opening cross-section of the jet outlet opening structure with increasing shower fluid operating pressure within a normal operating pressure range. According to one aspect, the jet outlet opening structure (4.sub.S) is spaced apart from the lateral wall (2), and the bottom (3) on an inner side (3.sub.I) and/or on an outer side (3.sub.A) has a weakening pattern (5) with a lesser wall thickness as compared to an adjacent region of the bottom, wherein the weakening pattern is designed to deform in an elastically resilient manner under the effect of the fluid operating pressure in the hollow chamber (1).

The present invention relates to devices and methods for measuring a varnish jet for a varnishing process for electronic subassemblies. Said devices and methods allow the width and symmetry of the varnish jet to be determined without performing any relative movement between the varnish jet and the sensor.

A coating system for applying coating liquid such as a base coat, a paint, a lacquer or a protective layer to surfaces of buildings, wind turbines, ships and aircraft. The coating system includes an unmanned aerial machine in the form of a helicopter for dispensing the coating liquid. The aerial machine has a fuselage, two rotors, a tank for holding the coating liquid, and an applicator for dispensing the coating liquid and outputting same onto a surface to be coated. In order to supply the tank with coating liquid, the tank is fastened to the aerial vehicle and the tank or aerial vehicle has a filling opening for refilling the tank in the landed state of the vehicle, and/or the tank is part of an exchangeable tank module coupled to the fuselage and/or is uncoupled from the fuselage by a coupling device controlled in an automated manner.

A flow control device including: a housing including a flow passage extending from an inlet, through the housing to an outlet; a hollow tube within the housing defining a tube passage included in the flow passage of the housing; a valve seat in the housing and disposed between the inlet to the flow passage and an inlet to the tube passage of the hollow tube; and a drain check shuttle within the housing and configured to move reciprocally with respect to both the housing and the hollow tube, wherein the drain check shuttle has: a first position within the housing at which the drain check shuttle abuts the valve seat, and closes a gap between the valve seat and the inlet to the hollow tube; and a second position displaced from the valve seat and which opens the gap.

Systems and methods for air pressure control in a hot melt liquid dispensing system are described. An example hot melt liquid dispensing system includes a pump that pumps hot melt liquid to an applicator. The hot melt liquid dispensing system also includes an air flow path that supplies pressurized air to the pump and an electronic pressure sensor associated with the air flow path. The hot melt liquid dispensing system also includes a controller that receives an electronic signal from the electronic pressure sensor indicative of an air pressure in the air flow path and causes adjustment to the air pressure in the air flow path based on the electronic signal from the electronic pressure sensor.