A spray coating module with multi-orifice passageways includes an ultrasonic vibrating unit having an ultrasonic horn, and a material feeding unit having a material inputting passageway, a plurality of material outputting passageways, a dividing passageway and a material outputting end surface. The dividing passageway communicates with the material inputting passageway and each material outputting passageway. The material inputting passageway has a material inputting orifice. Each material outputting passageway has a material outputting orifice formed on the material outputting end surface. The cross-sectional area of the material inputting orifice is larger than the sum of the cross-sectional areas of the material outputting orifices. A gap is kept between the material outputting end surface and the ultrasonic horn. As a result, the present invention is effectively prevented from the non-uniform material feeding condition of the traditional elongated material feeding unit and relatively better in spray coating uniformity.

A sprayer includes a spray gun and a hopper. An air source provides compressed air to the sprayer to both eject fluid from the spray gun as a spray and to pressurize the hopper. The spray gun includes an airflow controller for controlling the flow of the compressed air to a nozzle of the spray gun, a pressure regulator for regulating a pressure of the compressed air flowing to the hopper, and a relief valve between the pressure regulator and the hopper. The hopper receives the compressed air through a port in the hopper, and the compressed air assists the flow of material out of the hopper and into the spray gun.

A paint spray gun comprises a spray gun body; an air cap; and a hollow needle capable of assuming at least an open position enabling the passage of paint therethrough and a closed position; at least one air distribution channel for atomizing air; and at least one air distribution channel for fan air. A fluid spray single two stage nozzle includes first and second internal surfaces at first and second predetermined angles, respectively, with respect to a rotational axis of symmetry of the nozzle, wherein the first angled surface is proximate a forward opening of the nozzle, the second angled surface is aft of the first angled surface, the first angle is in a range of substantially 0.05 to thirty degrees, and the second angle ranges from substantially 0.1 to sixty degrees greater than that of the first angle.

A contact nozzle for simultaneously coating a plurality of elastic strands moving in a machine direction with an adhesive is described. The contact nozzle includes a single fluid inlet for receiving the adhesive from a fluid module, a first inverted V-shaped notch, a second inverted V-shaped notch, a third inverted V-shaped notch, and a mounting surface configured to abut the fluid module when the contact nozzle is coupled to the fluid module. Each inverted V-shaped notch extends along the contact nozzle in the machine direction, has an open bottom end, a circular closed top end. Each inverted V-shaped notch includes an adhesive orifice in fluid communication with the single fluid inlet for receiving the adhesive for directing the adhesive into contact with an upper surface of an elastic strand.

A cleaning apparatus includes a fluid discharge portion discharging fluid to a cleaning object, a gas discharge portion jetting gas to the cleaning object, a fluid tank, a fluid pump supplying the fluid via a fluid passage, a gas pump supplying gas via a gas passage, a control unit, a housing at which a part of the fluid passage and a part of the gas passage are provided, and a valve element switchable between a closed position at which the gas passage is blocked and an open position at which the gas passage is opened, the valve element including a first surface receiving a fluid pressure in a direction where the valve element is brought to the closed position and including a second surface receiving a gas pressure in a direction where the valve element is brought to the open position in a state where the valve element is closed.

A microfluidic delivery device and method of dispensing a fluid composition from a microfluidic die are provided. The method includes generating air flow from a fan; directing a first portion of the air flow through a first air outlet in a housing; directing a second portion of the air flow through a second air outlet in the housing; jetting a fluid composition from a microfluidic die through a fluid orifice in the housing; directing the second portion of air flow adjacent to the microfluidic die and out the fluid outlet, wherein the first portion of the air flow directs the fluid composition jetted out of the fluid outlet into the air.

The present disclosure relates to a nozzle for discharging compressed air having a circumferential surface section which extends from a feed end to a discharge end and extends at least partially axially, and an end section produced in one piece, which extends radially inward from the circumferential surface section at the discharge end. In order to allow efficient and targeted compressed air discharge, the present disclosure envisages that a plurality of helical passages extend through the end section, each of which slopes in a tangential direction, at least in some section or sections, and into each of which a first discharge opening for compressed air opens.

A fan air control assembly for a spray gun (10) controls the flow rate of a fan air portion of compressed air to the spray end of the spray gun (10), thereby controlling the resulting spray pattern. The fan air lever (28) is accessible from the exterior of the spray gun (10) and can be manipulated while spraying by the hand of the user holding the sprayer and manipulating the trigger. The fan air control assembly (20) is rotatable on a valve axis (B) to control the flow of the fan air portion.

A nozzle arrangement applies fluids, in particular thermoplastic adhesives, to a substrate. The nozzle arrangement and the substrate move relative to one another in a first direction. The nozzle arrangement has a main body which is exchangeably connected to a mounting region of a distributor and which has an end-side side surface extending in a second direction running at least substantially perpendicular to the first direction. The end-side side surface of the main body can have mutually adjacently arranged first outlet nozzles for the fluid to be applied formed in a first row extending along the second direction and mutually adjacently arranged second outlet nozzles for a second fluid formed in a second row extending along the second direction and that is parallel to the first row.

A nozzle arrangement for applying fluids to a substrate has a main body which is able to be connected to a mounting region of a distributor and which has an end-side side surface. At least one first outlet nozzle for the fluid to be applied to the substrate is provided in or on the end-side side surface of the main body. A first fluid channel system is formed in the main body, via which the at least one first outlet nozzle is connected in terms of flow to a first fluid connector, which is provided in the main body of the nozzle arrangement. The nozzle arrangement is a monolithic component produced by an additive production method.