Abstract:
A nozzle assembly with a self-cleaning face is provided, having a nozzle body with a liquid flow path defined therethrough with an inlet and a spray outlet. The nozzle body is mounted in a carrier body, and an annular gas flow channel is located about the nozzle body with a gas discharge outlet defined around the spray outlet. A porous surface is located about the annular gas flow channel at the gas discharge outlet. A radiused surface is formed in the carrier body at the air discharge outlet. A pathway is in communication with the porous surface and adapted to provide a low velocity fluid discharge from the porous surface. A spray device and method are also provided using the nozzle assembly with the self-cleaning face. An adaptor for retrofitting an existing nozzle is also provided.
Abstract:
A spray gun and a method for use thereof comprises a spray gun body, an air cap, a fluid spray nozzle having a fluid tip, a hollow needle, at least one air distribution channel for atomizing air, and at least one air distribution channel for fan air, wherein the fluid spray nozzle and the air cap are configured to direct an atomization airflow at an angle of 10 to 75 degrees, preferably 15 to 60 degrees, and more preferably of 30 to 45 degrees (relative to the coating composition jet) into composition jet, and the fluid spray nozzle and the air cap are configured to provide an atomizing air pressure to fan air pressure ratio (AA/FA) of 0.1 to 10, preferably 0.5 to 1.0, more preferably of 0.6 to 0.9, and still more preferably of 0.66 to 0.88.
Abstract:
A system, including a spray cap configured to couple to a spray tool, wherein the spray cap includes a body and an air shaping passage through the body. The air shaping passage includes a flow control passage, an expansion chamber downstream from the flow control passage, and one or more air shaping outlets downstream from the expansion chamber.
Abstract:
Various embodiments concern a sprayer having a blower that outputs a HVLP flow of air into a hose, the hose connecting with a spray gun. A pressure sensor measures pressure of the HVLP air within the hose via a tube that branches from a fitting to which the hose connects. If the sensor indicates that the pressure level has increased above a threshold amount, indicating that the trigger of the spray gun is not being actuated, then power output to the blower is reduced (e.g., stopped). HVLP air is trapped within the hose by two valves when the trigger is not actuated. When the sensor indicates that the pressure level has decreased, corresponding to release of the trapped HVLP air into the gun for spraying by actuation of the trigger, power to the blower is increased (e.g., resumed).
Abstract:
A method for producing particles, which contains: bringing a compressive fluid and a pressure plastic material into contact with each other to melt the pressure plastic material; and jetting a melt obtained by melting the pressure plastic material to form particles, wherein the jetting the melt is performed by a two-fluid nozzle or three-fluid nozzle.
Abstract:
A device including a centrifugal separator for cleaning of a gas, especially a gas containing impurities in the form of solid and/or liquid particles, includes a stationary casing enclosing a separation space, an inlet channel, a rotating member in the separation space for separating at least a main part of the impurities from the gas, a gas outlet channel, and an outlet for discharging a separated phase of the gas. A supply member is provided for supplying a liquid, in the form of an aerosol, to the gas to be cleaned and which comprises a supply conduit with an outlet end, and an ejector nozzle connectable to a pressurized gas conduit and including a nozzle outlet. The nozzle outlet at the outlet end permits ejection of the aerosol from the outlet end by means of the pressurized gas supplied to the ejector nozzle and the nozzle outlet.
Abstract:
An isolator system includes: a main body case including a substantially box-shaped work space isolated from its surroundings; a spray device configured to spray a sterilizing mist from a nozzle mounted within the main body case, the sterilizing mist being obtained by converting a sterilizing liquid into mist; a diffusion fan mounted within the main body case to diffuse the sterilizing mist; and a control device configured to control operations of the spray device and the diffusion fan, the spray device being configured to spray the sterilizing mist when spraying, the diffusion fan being configured to be intermittently operated in the spray process of the spray device, the diffusion fan being configured to be continuously operated from an end of the spray process of the spray device.
Abstract:
The liquid ejecting device uses pressurized gas to eject liquid as a spray of fine particles and is provided with internal gas-flow passageway to supply pressurized gas, and a nozzle section with a slit-shaped liquid ejecting opening to discharge liquid. The nozzle section is near the end of the an elongated main unit of the liquid ejecting device, and gas jet openings to discharge pressurized gas are established between inclined nozzle surfaces and sidewalls of the main unit. The liquid ejecting opening is connected with liquid-flow passageway and the gas jet openings are connected with the gas-flow passageway. Viewed in cross-section, the inclined nozzle surfaces are formed such that their extensions intersect above the liquid ejecting opening on a line extending from the liquid ejecting opening, and pressurized gas is discharged as jets along the inclined nozzle surfaces to intersect in a manner that sandwiches the liquid in between and breaks-up the liquid-flow to produce a spray of fine particles.
Abstract:
Tracer particles together with air are jetted from a nozzle of a seeder into a hood, the air is guided by a collision surface of the hood, deflected to a downstream side in an airflow direction in a wind tunnel, and flows out into the wind tunnel through an opening of the hood. Tracer particles having a large diameter fly straightly without being drifted by the deflected air and collide with the collision surface and are trapped thereon and are prevented from being supplied into the wind tunnel. Tracer particles having a small diameter are drifted by the deflected air, thereby deflected, and supplied into the wind tunnel without collision with and adhesion to the collision surface.
Abstract:
The invention relates to an apparatus for forming liquid droplets, such as a micro nebulizer, useful for preparing samples for subsequent analysis via MS, AA, ICP, CE/MS, and similar analytical systems. The apparatus has a mechanically stabilized inner microtube or needle, thereby ensuring controllably uniform droplet size. The mechanical stabilization is provided by securing the inner microtube or needle, such as by narrowing the inner diameter of the outer microtube or otherwise narrowing the annular intermediate space between the inner and outer microtubes for a predetermined length. Thus, the inner microtube is secured in a centered or otherwise predetermined fixed radial position, with minimum perturbation of the fluid flow. Further, a tip, when coupled with the exit end of the outer microtube, provides a region in which the sheath fluid flow in the outer microtube stabilizes prior to both exiting the tip and colliding with the liquid analyte exiting the inner microtube.