A compressed air foam (CAF) mixing device is suitable for use in a CAF system that includes a pressurized source of a water soap mixture and a pressurized air source. The CAF mixing device includes an inlet portion, a venturi portion and a deceleration portion. The venturi portion communicates with the inlet portion and includes a constricted zone which presents a smaller cross sectional area than the inlet portion. The venturi portion opens into the deceleration portion that has a substantially larger cross sectional area than the venturi portion. At least one pressurized air conduit communicates with the pressurized air source and is arranged to be adjacent to the deceleration portion. At least one aperture communicates between the pressurized air conduit and the deceleration portion and introduces high pressure air into the deceleration portion in order to produce a water soap foam (CAF) suitable for firefighting.

A spray nozzle for spraying material includes an outlet, a mixing section, an inlet for the material, and a buffer space for pressurized gas. The mixing section is in fluid communication with the outlet. The inlet is in fluid communication with the mixing section. The buffer space is in fluid communication with the mixing section via two or more separate gas supply channels. The inlet comprises a separating wall configured to divide a flow of material to be sprayed into two separate flow passages prior to entry into the mixing section.

The present invention provides a portable device for injecting repair material, the portable device comprising: a chassis frame; tanks storing source materials; pumping means pumping the source materials; an injection nozzle mixing the source materials and injecting repair material into cracks; source material supplying means including: operating blocks connected to the pumping means; supplying pipes connected to the operating blocks and supplied with the source materials; transferring pipes connected to the operating blocks and transferring the source materials into the injection nozzle, and a pressure controller connected to the transferring pipe and controlling the source materials, wherein check valves for preventing backflow are installed inside the transferring pipes, wherein by adjusting another check valve connected to the pressure controller, an amount of the repair material for injection is controlled.

A device for dispensing liquid onto a target area of a vehicle surface is described, and includes a mixing valve that is in communication with a pressurized fluidic supply system via a fluidic distribution system, and a controller. The mixing valve includes an outlet orifice that is disposed proximal to the target area, and the mixing valve includes first and second valve conduits that are fluidly connected to the outlet orifice via a mixing portion. The first valve conduit includes a first control valve, and the second valve conduit includes a second control valve. The fluidic distribution system includes a first fluidic conduit and a second fluidic conduit. The controller is operatively connected to the fluidic supply system, and the first and second control valves.

An apparatus for preparing a cosmetic composition containing an emulsion substance formed by instant emulsification through a microfluidic channel is provided. The apparatus includes a housing defining the appearance of the apparatus and installed with a pump on one side, the pump being operated by a user; an external-phase chamber provided in the housing, and storing an external-phase fluid forming the external phase of the emulsion substance; a dispersed-phase chamber provided in the housing, and storing a dispersed-phase fluid forming the dispersed phase of the emulsion substance. The apparatus further includes a microfluidic channel providing a path for the external-phase fluid and the dispersed-phase fluid to flow for forming the emulsion substance by combining the external-phase fluid with the dispersed-phase fluid; and a tube for discharging the emulsion substance from the microfluidic channel.

An apparatus for preparing a cosmetic composition containing an emulsion substance formed by instant emulsification through a microfluidic channel is provided. The apparatus includes a housing defining the appearance of the apparatus and installed with a pump on one side, the pump being operated by a user; an external-phase chamber provided in the housing, and storing an external-phase fluid forming the external phase of the emulsion substance; a dispersed-phase chamber provided in the housing, and storing a dispersed-phase fluid forming the dispersed phase of the emulsion substance. The apparatus further includes a microfluidic channel providing a path for the external-phase fluid and the dispersed-phase fluid to flow for forming the emulsion substance by combining the external-phase fluid with the dispersed-phase fluid; and a tube for discharging the emulsion substance from the microfluidic channel.

An atomizing spray nozzle device includes an atomizing zone housing that receives different phases of materials used to form a coating. The atomizing zone housing mixes the different phases of the materials into a two-phase mixture of ceramic-liquid droplets in a carrier gas. The device also includes a plenum housing fluidly coupled with the atomizing housing and extending from the atomizing housing to a delivery end. The plenum housing includes an interior plenum that receives the two-phase mixture of ceramic-liquid droplets in the carrier gas from the atomizing zone housing. The device also includes one or more delivery nozzles fluidly coupled with the plenum chamber. The delivery nozzles provide outlets from which the two-phase mixture of ceramic-liquid droplets in the carrier gas is delivered onto one or more surfaces of a target object as the coating on the target object.

A nozzle including a first end and a second end. The first end includes at least a first inlet and a second inlet and the second end includes a plurality of outlets. An exterior surface extends from the first end to the second end of the nozzle. A plurality of vanes are disposed on the exterior surface and extend from the first end to the second end of the nozzle. A plurality of channels form along the exterior surface of the nozzle.

A fine particle sprayer including a nozzle for dispersing a liquid disinfectant into a spray plume of droplets and a means for directing pressurized air below the spray plume to increase droplet transfer efficiency, and above and around the spray plume to prevent errant droplets from drifting toward an operator. A sprayer system includes a sprayer, a housing, and a blower that may be removably attached to the sprayer for generating an air stream below the droplets to improve droplet transfer efficiency.

A flow divider for diverging a fluid includes a main body that includes first and second side surfaces being opposite to each other along a central axis of the main body. The first side surface has a central segment transversely intersecting the central axis, and having an inlet channel recessed toward the second side surface, a generally annular channel surrounding the central segment, recessed toward the second side surface, and spatially communicated with the inlet channel at a junction space, and an inclined segment surrounding the annular channel. A width of the annular channel decreases gradually from a start measurement to an end measurement along a rotational direction with respect to the central axis.