A rotary cleaning nozzle for cleaning surfaces of a beverage bottling installation using a fluid, comprising a nozzle assembly which has a feed duct for the fluid, and a nozzle head which is mounted rotatably on the nozzle assembly and has at least one nozzle outlet opening from which, during operation, fluid flowing through the feed duct and the nozzle head emerges in the form of a cleaning jet. The rotary cleaning nozzle furthermore comprises an electrical generator for the induction of electrical energy by way of rotation of the nozzle head, and a control unit for indicating a rotation of the nozzle head in dependence on the induced electrical energy.

A noise suppressed blasting system comprising: a source of blasting gas in a predetermined pressure range with abrasive particles entrained therein; a nozzle including a nozzle inlet for connection to the source of blasting gas, a nozzle outlet for emission of the blasting gas, a nozzle conduit from the nozzle inlet to the nozzle outlet including a throat therebetween with a ratio of area of the nozzle outlet to area of the throat selected to emit the blasting gas from the nozzle outlet to produce a supersonic jet; a silencer connectable to the nozzle, to receive the supersonic jet exiting the nozzle, the silencer comprising a body with a silencer conduit therethrough, the body being of sufficient length and diameter to cause a flow condition of the jet received from the nozzle outlet to be modified such that 1 shock cells are created in a jet inside the silencer, no shock cells are created in the jet outside the silencer and a jet exits the silencer in the form of a core jet with an established turbulent shear layer thereabout and entraining an annular jet located around the core jet.

A fluid dispersion assembly comprises a diffusion unit disposed in fluid communication with a fluid container, the assembly being powered by a compressed air source. The diffusion unit at least partially defines a diffusion chamber, and includes a diffusion assembly containing an atomizer assembly which, in combination with the diffusion chamber, generates a fluid dispersion from a mixture of compressed air and an operative fluid, for example, fragrant oils, essential oils, odor neutralizers, disinfectants such as triethylene glycol, air sanitizers, etc.

A compressed air blow gun comprises a valve having a spool (41) movable in a cylinder (203). The spool (41) has two piston heads (411, 413) spaced from each other along a piston rod (412). The pressurized air is fed to a space (414) between the two piston heads (411, 413), whereby the spool (41) is pressure balanced, and a trigger (40) is connected to the spool (41) for moving it in the cylinder (203) unaffected by the force from the pressurized air. Upon pulling the trigger (40), the spool (41) moves to uncover an outlet (211) to permit the air to pass to a nozzle (33). The blow gun brings about an improved working environment, e.g. by reducing the risk of causing a repetitive strain injury. In preferred embodiments, the spool (41) and the trigger (40) are an integral unit (4), the spool (41) and the cylinder (203) are curved, the number of components is reduced, the assembling is facilitated, the nozzle (30) is a silenced nozzle, and a filtering anti backflow valve (5) is provided in an air inlet passage (201) to the blow gun.

A nozzle for a spray gun, in particular a paint spray gun, has at least one material nozzle having a hollow portion for the passage of material to be sprayed; a material outlet opening; and a disk element extending radially from the material nozzle and having at least one passage opening. The nozzle has at least one first baffle disk which is arranged on the disk element and has an inner and an outer circumference. The first baffle disk is arranged on the disk element directly, in particular without a sealing element arranged inbetween. The disadvantages that separate sealing elements have to be specially produced and may be lost or damaged, can thereby be avoided. The nozzle according to the disclosure and related nozzle sets, paint spray guns and methods for producing nozzles are functionally reliable, have only few individual parts and a compact design and are quiet.

A fluid tip for use with a spray gun. The fluid tip comprises an air cap and a paint nozzle. The air cap comprises an inner surface 206 and the paint nozzle comprises an outer surface 208. The inner and outer surfaces define sides of an air channel 203. The inner and outer surfaces are defined by contours, each contour terminating to form an air channel outlet 207 for discharging an air jet proximal a paint nozzle outlet of the paint nozzle. The contours are configured to provide a velocity profile 400 across the air channel outlet 207 of an air flow 401 through the air channel 203 in which velocities of air radially closer to the paint nozzle outlet are substantially higher than velocities radially further from the paint nozzle outlet.

An example system includes at least one acoustic sensor and one optical sensor to monitor a thermal spray system controlled by a plurality of control parameters and performing a process associated with a plurality of process outputs. The system includes a computing device including a machine learning module and a control module. The machine learning module is configured to determine, based on at least the plurality of control parameters, an at least one time-dependent acoustic data signal, an at least one image data signal, and the plurality of process outputs, a relationship between the plurality of control parameters and the plurality of process outputs by machine learning. The control module is configured to control the thermal spray system to adjust the plurality of process outputs toward a plurality of respective operating ranges.

An air-cap nozzle 103b for discharging an atomising air jet 101b for atomising paint from a spray gun, the air cap nozzle comprising a tip surface having an atomizing air outlet 100b and a rim region 102b surrounding the outlet. The rim region 102b comprises a continuous serrated portion formed by a plurality of protrusions 104 that protrude axially outward from the rim region 100b of the tip surface. The protrusions 104 are separated by valleys 105 configured to permit entrainment of ambient air by the atomising air jet 101b, the entrained ambient air being drawn through the valleys. The permitted entrainment provides mixing between the entrained ambient air and the atomising air jet 101b.

A fire suppression nozzle can include a first fluid channel configured to be in fluid communication with a first fluid having a first flow velocity and a second fluid channel configured to be in fluid communication with a second fluid having a second flow velocity. A mixer can be disposed between the first fluid channel and the second fluid channel such that the mixer is configured to induce streamwise vorticity in at least the first fluid exiting first fluid channel to cause mixing of the first fluid and the second fluid to reduce a flow speed of a mixture of the first fluid and the second fluid.

A method of applying heat shield material to form a heat shield layer on a crown surface of a piston of an engine is provided. The method includes the steps of disposing a dispenser that linearly discharges the heat shield material toward the crown surface, and moving an applied position of the heat shield material with respect to the crown surface in a circumferential direction of the crown surface, while discharging the heat shield material from the dispenser toward the crown surface.