A fuel and gas mixing structure for an engine is provided. This mixing structure includes a body configured to be positioned between a fuel injector and a cylinder of an engine. The body defines an interior volume that is configured to receive gas (e.g., air) from outside the body and to receive one or more streams of fuel from the fuel injector in the interior volume. The body also includes one or more upper channels and one or more lower channels that are configured to provide a substantially similar amount of flow relative to each other to the interior volume The body also defines one or more mixture conduits configured to conduct plumes of the fuel and gas, while mixing, from the interior volume to one or more exit ports and therethrough to the cylinder.

The present application discloses an exhaust gas after-treatment mixing device including a first plate, a second plate and a mixer. The mixer includes a first space, a second space and a third space located between the first space and the second space. Top portions of the first space and the second space are in communication with the third space. The mixer includes a first raised portion protruding into the third space and a second raised portion located below the first raised portion. A fourth space is formed between the first raised portion and the second raised portion. As a result, the distance and time of urea evaporation is increased and the mixing uniformity is improved. Besides, a package with the exhaust gas after-treatment mixing device is also provided.

A dechlorinating device includes a mixing chamber having an inlet and an outlet, and the dechlorinating device is configured to receive a fluid. The dechlorinating device also includes a dechlorinating conduit disposed within the mixing chamber and a recirculation zone disposed within the mixing chamber and positioned between the dechlorinating conduit and the outlet. A dechlorinating system includes a storage tank, an overflow pipe in fluid communication with the storage tank, and the dechlorinating device in fluid communication with the overflow pipe. A method of dechlorinating includes providing the dechlorinating device and feeding the fluid to the inlet of the dechlorinating device.

A nozzle flow stirring pipe includes a pipe body and a nozzle. The pipe body is cylindrical and includes an inner pipe member and an outer pipe member. The inner pipe member has a liquid-extracting channel. The outer pipe member fits around the inner pipe member. A reflow channel is defined between an inner wall of the outer pipe member and an outer wall of the inner pipe member. The nozzle is disposed at one end of the pipe body. The inner pipe member is penetratingly disposed at the nozzle and exposed from below. The nozzle has a plurality of liquid-ejecting pores in communication with one end of the reflow channel.

A device or system includes a mixer comprising a three-dimensional lattice defining a plurality of tortuous, interconnecting passages therethrough. The mixer is in communication with sources or streams of at least two separate components which, when mixed, form a combined fluid stream. The sources or streams may be, at least initially, on opposite sides of the mixer, or the sources or streams may be on the upstream side of the mixer with an outlet disposed downstream of the mixer. A related method may include providing a mixer comprising a three-dimensional lattice defining a plurality of tortuous, interconnecting passages therethrough, and selecting a material for the mixer based on physical characteristics of said material, said characteristics including a selected one or more of mean flow pore size, thickness and porosity volume.

A device or system includes a mixer comprising a three-dimensional lattice defining a plurality of tortuous, interconnecting passages therethrough. The mixer is in communication with sources or streams of at least two separate components which, when mixed, form a combined fluid stream. The sources or streams may be, at least initially, on opposite sides of the mixer, or the sources or streams may be on the upstream side of the mixer with an outlet disposed downstream of the mixer. A related method may include providing a mixer comprising a three-dimensional lattice defining a plurality of tortuous, interconnecting passages therethrough, and selecting a material for the mixer based on physical characteristics of said material, said characteristics including a selected one or more of mean flow pore size, thickness and porosity volume.

The present disclosure relates to a mixer device having a housing including at least first and second adjacent mixing cells (2, 3), each cell (2, 3) including a fluid inlet opening (21, 31) and a fluid outlet opening (22, 32), the inlet opening being offset from the outlet opening so that the axis of the inlet opening is parallel to the axis of the outlet opening, the outlet opening of the first cell being connected to the inlet opening of the second cell via a connecting channel.

Systems and methods are provided for improving the flow distribution in the high temperature zone of a cyclic flow reactor, such as a reverse flow reactor. The systems can include a plurality of mixing plates that can facilitate mixing of flows that have been maintained separately until a mixing location. Based in part on the use of a plurality of mixing plates, methods are provided for operating a reverse flow reactor with a temperature profile that has improved uniformity across the cross-section of the reactor. In some aspects, a flame diffuser can be included downstream from the plurality of mixing plates to further improve the uniformity of the temperature distribution.

An ultrafine bubble generation device including a gas-liquid mixed fluid generator, a rotary mixer, and a bubble shear filter. The rotary mixer is provided with a hollow part including a vertex inside, including an inflow hole, wherein a groove having a spiral shape is provided in an inner wall surface of the hollow part. The bubble shear filter is provided with a hollow part inside, including an inflow hole for introducing the fluid into the hollow part, wherein the hollow part is tubular, and a plurality of circular plates are arranged perpendicularly to a central axis of the hollow part, and an opening of a type 1 of circular plate and a pointed end portion of a type 2 of circular plate adjacent to the type 1 of circular plate are arranged to face each other, and connected with a pipeline.

An apparatus for creating an emulsion, including: an inlet chamber; a channel comprising a length L, height H, an inlet and an outlet, and walls having surface energies, the channel inlet adjacent to the inlet chamber. The channel inlet walls have a first surface energy and the outlet walls have a second surface energy substantially different from the first surface energy. An outlet chamber is disposed adjacent to the channel outlet, the outlet chamber height H2 being greater than the channel height H.