A micro-bubble generator is provided between an input end and an output end of a water outlet device. The micro-bubble generator includes a water inlet member and a water outlet member. A gas inlet gap is remained between the water inlet member and the water outlet member, with the gas inlet gap being communicated to external air, such that the external air is allowed to enter the micro-bubble generator for gas-liquid mixing and generate minute and dense bubbles.

Systems and techniques can be used to invert an emulsion polymer under ultra-high shear. In some examples, a method for inverting an emulsion involves introducing the emulsion into a process liquid to form a dilute emulsion. The emulsion may be defined by a continuous phase and a discontinuous phase containing a polymer, with the polymer being soluble in the process liquid but the continuous phase being immiscible in the process liquid. A fluid pressurization device can pressurize the dilute emulsion to form a pressurized dilute emulsion. Thereafter, the pressurized dilute emulsion can be passed through a multi-channel flow restrictor, such as a capillary bundle, thereby generating a shear force for dispersing and inverting the emulsion in the process liquid.

A decomposition chamber for an exhaust aftertreatment system includes an inlet conduit centered on an inlet conduit axis and configured to receive exhaust, a decomposition conduit coupled to the inlet conduit, an endcap coupled to the decomposition conduit, and an injector coupled to the endcap and configured to provide reductant into the decomposition conduit along an injection axis. The decomposition chamber includes a guide swirl mixer coupled to at least one of the inlet conduit or the endcap. The guide swirl mixer includes a first portion disposed within the inlet conduit, and a second portion disposed within the decomposition conduit such that the inlet conduit axis extends through the second portion. The second portion extends at least partially around the injection axis.

A hand held shower head configured to deliver a continuous dose of water dispersed treatment from a water disintegratable treatment source, the shower head including: a hollow body having water inlet opening and water outlet, the water outlet defined by a perforated plate, and a mesh formation disposed within the hollow body between the water inlet opening and the perforated plate, wherein the water inlet opening, hollow body and perforated plate are configured to create in use a pressurised turbulent water flow within the hollow body prior to exiting through the perforated plate, whereby a water disintegratable tablet treatment source introduced into the hollow body prior to use, is then agitated by the turbulent water flow against the mesh in an abrading manner and thereby dispersed into the water flow exiting the perforated plate. A water disintegratable tablet comprising emulsifier, thickening agent, surfactants, oil and rheology modifier is also disclosed.

A multi-stage mixer includes a multi-stage mixer inlet, a multi-stage mixer outlet, a first flow device, and a second flow device. The multi-stage mixer inlet is configured to receive exhaust gas. The multi-stage mixer outlet is configured to provide the exhaust gas to a catalyst. The first flow device is configured to receive the exhaust gas from the multi-stage mixer inlet and to receive reductant such that the reductant is partially mixed with the exhaust gas within the first flow device. The first flow device includes a plurality of main vanes and a plurality of main vane apertures. The plurality of main vane apertures is interspaced between the plurality of main vanes. The plurality of main vane apertures is configured to receive the exhaust gas and to cooperate with the plurality of main vanes to provide the exhaust gas from the first flow device with a swirl flow.

The present invention discloses a microbubble-producing water outlet assembly, which includes a housing, a water inflow component, a water through-flow disc and at least three layers of bubble mesh plates. The microbubble-producing water outlet assembly provided by the present invention has a simple structure, is easy to manufacture and easy to implement, has a low cost, and solves a problem that the water flow strength is too high but the content of microbubbles is too low in existing water outlet assemblies in the prior art.

A process for producing a microemulsion or nanoemulsion comprising water and at least one hydrocarbon or oil, comprising the steps of: a) providing the hydrocarbon or oil, water, one or more additives, a solvent, and a hydrophilic surfactant formulation comprising an amine or amide derivative non-ionic surfactant which is a fatty acid alkanolamide, one or more ethoxylated alcohols and/or ethoxylated alkylphenols, and a non-ionic fatty acid ester; b) by a mixing or stirring device operating at a mixing or stirring speed in the range 100 rpm and 15000 rpm, mixing or stirring the hydrophilic surfactant formulation and additive into the solvent, to produce a hydrophilic self-emulsifying blend; c) adding water to the hydrophilic self-emulsifying blend and the hydrocarbon or oil to produce a water-in-hydrocarbon/oil microemulsion or nanoemulsion, wherein the microemulsion or nanoemulsion comprises: 46% or more by mass of the hydrocarbon or oil, 4% to 36% by mass of water, a mass ratio of hydrophilic surfactant formulation to water in the range 1:10 to 1:2, 0.1% to 5% by mass of additive, 1.2% or more by mass of the solvent, a dispersed particle size in the range 1 nm to 500 nm, and a polydispersity index of 35% PdI or less, wherein the percentages by mass of the hydrocarbon or oil, water, formulation, additive and solvent together add up to 100%.

A microbubble generator is formed from at least two of a flow path constituting section that constitutes a flow path through which a liquid is passable, and a decompression member including a colliding section that is fitted into the flow path constituting section and locally reduces a cross-sectional area of the flow path to generate microbubbles in the liquid that passes through the flow path. This microbubble generator includes an outlet connecting to a negative pressure producing section of the decompression member, an outside air introduction port provided in the flow path constituting section to introduce outside air, and an outside air introduction path communicating between the outside air introduction port and the outlet.

The invention refers to a foam dispenser. The foam dispenser is suitable for dispensing foam produced by mixing a foaming liquid and gas, in particular air. Further, the invention refers to foam dispenser assembly, a vessel for storing a foamable aqueous composition and a method for forming foam using the foam dispenser.

A nozzle for generating fine bubbles, the nozzle including: a hollow housing; and a plurality of plates provided in the housing and partitioning the housing into a plurality of spaces, wherein an upper face or a side face of the housing is provided with an inflow port into which a gas-dissolved liquid flows and which communicates with an uppermost space of the spaces partitioned by the plate, each of the plates is provided with a plurality of through-holes, and a lower face of the housing is provided with a slit communicating with a lowermost space of the spaces partitioned by the plate.