A flow control device for mitigating thermal stratification in a mixing tee pipe includes a mixing bowl provided as an empty sphere; a main pipe having a tubular shape, through which a fluid flows, and coupled to the mixing bowl in linkage with the mixing bowl; a branch pipe having a tubular shape, through which a fluid flows, and coupled to the mixing bowl in linkage with the mixing bowl; and a mixing tee pipe having a tubular shape, through which the fluid in the mixing bowl flows, and coupled to the mixing bowl in linkage with the mixing bowl, wherein a fluid introduced from the main pipe and a fluid introduced from the branch pipe are mixed in the mixing bowl and discharged through the mixing tee pipe.

A method of homogenizing a production fluid from an oil well having one or more wellbores includes separating gas from the production fluid in a vertical or horizontal section of a well casing at a first location spaced from a heel portion of a wellbore, and injecting the separated gas into the production fluid at a second location spaced from the heel portion of the wellbore and provided downstream of the first location.

An additive manufacturing system for additive manufacturing material with long fibers includes an extruder comprising a nozzle that includes a static-mixing portion, a compression portion, and a long fiber alignment portion. The static-mixing portion includes a static-mixing channel with static-mixing rods distributed inside and extending radially inward from a channel wall. The long fiber alignment portion has an alignment channel with a diameter D.sub.AC that is less than a diameter D.sub.SMC of the static-mixing channel. The compression portion includes with a reducing diameter from an input end to an output end of the compression channel. A nozzle and method for additive manufacturing are also disclosed.

An additive manufacturing system for an additive manufacturing material and embedded short-chopped fibers includes an extruder comprising a nozzle having a nozzle flow channel. The nozzle includes a plurality of spaced apart elongated aligning structures distributed inside the nozzle flow channel and parallel to the longitudinal center axis defining alignment flow channels within the nozzle flow channel. A nozzle for additive manufacturing, a method of additive manufacturing, and a method of making a nozzle for an additive manufacturing system for and additive manufacturing material and embedded short-chopped fibers are also disclosed.

An additive manufacturing system for additive manufacturing with an additive manufacturing material and fibers includes an extruder comprising a static-mixing nozzle having a static-mixing channel and static-mixing structures distributed inside the static-mixing channel and extending radially inward from the channel wall, and being longitudinally distributed and radially staggered over a portion of the length of the static-mixing channel. A static-mixing nozzle, a method of additive manufacturing, and a method of making a static mixing nozzle for additive manufacturing are also disclosed.

The present invention relates to a moisture-generating device (10) for generating a moisture-enriched air flow or gas flow, said device comprising: a housing (H) having a main extension direction (HR) and an inflow region (2) and an outflow region (3), and having a lateral inlet region (EB) which extends at a specified angle to the main extension direction (HR), and having a mixing region (MB), a water injector (WI) which is located in the lateral inlet region (EB) and by means of which atomized water can be introduced into the mixing region (MB) at the specified angle with or counter to the main extension direction (HR); a separator grid (SG) which is located in the mixing region (MB); and a homogenizing region (HB), which adjoins the mixing region (MB) in the main extension direction (HR), and wherein a degree of moisture of at least regions of the gas or air flow in the homogenizing region (HB) can be homogenized.

An apparatus and method for increasing the mass transfer of a treatment substance into a liquid flowing in a pipe in a full pipe flow regime has a diversion conduit which receives a portion of the liquid. The portion of the liquid is mixed with a treatment substance and then reintroduced into the pipe at a downstream location through an injection structure. Between the diversion conduit, on the upstream side, and the injection structure, on the downstream side, there are a plurality of flow vanes disposed circumferentially about a cylindrical inner wall of the pipe, where each flow vane extends radially inward toward a central axis of the pipe, extending into the main stream flow of the liquid. Another embodiment of the invention has a flow grid located downstream of the injection structure.

An impinging-type temperature uniformity device includes an outer case portion; and a temperature uniformizer provided in the outer case portion, spaced apart inwardly from an inner surface of the outer case portion and connected to the outer case portion, wherein the temperature uniformizer includes: a head portion provided in the outer case portion; and a body portion spaced apart inwardly from the inner surface of the outer case portion and including at least one through-hole.

Various aspects of the present invention relate to the control and manipulation of fluidic species, for example, in microfluidic systems. In one aspect, the invention relates to systems and methods for making droplets of fluid surrounded by a liquid, using, for example, electric fields, mechanical alterations, the addition of an intervening fluid, etc. In some cases, the droplets may each have a substantially uniform number of entities therein. For example, 95% or more of the droplets may each contain the same number of entities of a particular species. In another aspect, the invention relates to systems and methods for dividing a fluidic droplet into two droplets, for example, through charge and/or dipole interactions with an electric field. The invention also relates to systems and methods for fusing droplets according to another aspect of the invention, for example, through charge and/or dipole interactions. In some cases, the fusion of the droplets may initiate or determine a reaction. In a related aspect of the invention, systems and methods for allowing fluid mixing within droplets to occur are also provided. In still another aspect, the invention relates to systems and methods for sorting droplets, e.g., by causing droplets to move to certain regions within a fluidic system. Examples include using electrical interactions (e.g., charges, dipoles, etc.) or mechanical systems (e.g., fluid displacement) to sort the droplets. In some cases, the fluidic droplets can be sorted at relatively high rates, e.g., at about 10 droplets per second or more. Another aspect of the invention provides the ability to determine droplets, or a component thereof, for example, using fluorescence and/or other optical techniques (e.g., microscopy), or electric sensing techniques such as dielectric sensing.

Methods and systems are provided for a urea mixer. In one example, a urea mixer may include a tube for mixing exhaust gas with urea outside of a main exhaust passage.