A static mixer is disclosed. The static mixer comprises a housing (22) defining an internal mixing cavity (36) that longitudinally extends along a central axis between an inlet (38) and an outlet (40) and is adapted for axial flow of a fluid therethrough. The static mixer also comprises a mixing element (42) disposed within the mixing cavity (36). The mixing element (42) is configured to be free from an impingement surface oriented substantially perpendicular to a main direction of fluid flow through the internal mixing cavity (36). The mixing element (42) comprises an elongated mixing blade that is oriented longitudinally within the mixing cavity (36) and comprises a nose axially oriented toward the inlet (38). The static mixer may comprise a heat-exchanging jacket integrally formed with the housing (22). An additive manufacturing system comprising the static mixer, and methods of making and using the same, are also disclosed.

A fine bubble generator disclosed herein may include a body casing having an inlet and an outlet and a first fine bubble generation portion housed in the body casing. The first fine bubble generation portion may include a body portion, a venturi flow path through the body portion, an upstream fitting portion connected to the body portion and substantially fit an inner surface of the body casing, and a downstream fitting portion connected to the body portion downstream of the upstream fitting portion and substantially fit the inner surface of the body casing. A liquid drainage flow path connecting a gap space to the outlet may be disposed in the body casing, wherein the gap space may be defined between the inner surface of the body casing and an outer surface of the body portion and between the upstream fitting portion and the downstream fitting portion.

A fine bubble generator disclosed herein may include a body casing having an inlet and an outlet and a first fine bubble generation portion housed in the body casing. The first fine bubble generation portion may include a body portion, a venturi flow path through the body portion, an upstream fitting portion connected to the body portion and substantially fit an inner surface of the body casing, and a downstream fitting portion connected to the body portion downstream of the upstream fitting portion and substantially fit the inner surface of the body casing. A liquid drainage flow path connecting a gap space to the outlet may be disposed in the body casing, wherein the gap space may be defined between the inner surface of the body casing and an outer surface of the body portion and between the upstream fitting portion and the downstream fitting portion.

A parabolic mixing nozzle including a body having an internal flow channel having a well and a plurality of parabolic shaped channels extending through the well and wherein each of the plurality of parabolic shaped channels converge together and open into an exit passage to disrupt the laminar flow of material through the parabolic mixing nozzle and a method of making products using the parabolic mixing nozzle.

Method and Apparatus for passive mixing of a multiphase flow or hydrodynamic performance that is housing a conduit/tube, which is a channel extending internally from the fluid inlet to the outlet ports, comprising axially stacked plurality of static mixers possessing structural elements or mixing elements (possessing structural elements on their inner walls), that are responsible for continuous splitting, and combining of the flow through the conduit, bringing about enhanced mixing of the contents of the flow, mass-transfer, and heat transfer. The structural elements bring about an enhanced mixing of multi-phasic systems passing through the conduit such as liquid-liquid, liquid-gas-liquid, and systems comprising immiscible and viscous liquids. The mixing elements or structural elements are responsible for splitting of flow into sections of multiple streams, followed by forced recombination of the multiple streams which is responsible for the equitable dispersion of individual components of multiphasic flow, thereby enhancing mixing of flow.

Method and Apparatus for passive mixing of a multiphase flow or hydrodynamic performance that is housing a conduit/tube, which is a channel extending internally from the fluid inlet to the outlet ports, comprising axially stacked plurality of static mixers possessing structural elements or mixing elements (possessing structural elements on their inner walls), that are responsible for continuous splitting, and combining of the flow through the conduit, bringing about enhanced mixing of the contents of the flow, mass-transfer, and heat transfer. The structural elements bring about an enhanced mixing of multi-phasic systems passing through the conduit such as liquid-liquid, liquid-gas-liquid, and systems comprising immiscible and viscous liquids. The mixing elements or structural elements are responsible for splitting of flow into sections of multiple streams, followed by forced recombination of the multiple streams which is responsible for the equitable dispersion of individual components of multiphasic flow, thereby enhancing mixing of flow.

A static homogenizing apparatus for blending a fluid additive with a polymer melt includes: (a) a homogenizing conduit; and (b) a plurality of homogenizing elements in the conduit for flow of the melted resin and fluid additive through the homogenizing elements in series. The plurality of homogenizing elements includes a plurality of mixing elements and at least one amplifier element. Each mixing element has a quantity of mixing channels passing therethrough, and each amplifier element has a quantity of amplifier channels passing therethrough. The quantity of amplifier channels is greater than the quantity of mixing channels.

A static mixer, comprising a static mixer housing, having an inlet port for receiving a fluid, a channel in fluid communication with the inlet port, a raised rib along a perimeter of the channel, a flow splitter for splitting the fluid into a first stream and a second stream within channels, a second flow splitter for splitting the first stream into a third stream and a fourth stream within channels and a third flow splitter for splitting the second stream into a fifth stream and a sixth stream within channels, a first T-style junction for rejoining and mixing the third stream and the fourth stream within a channel, a second T-style junction for rejoining and mixing the fifth stream and the sixth stream within a channel, and a third T-style junction for rejoining and mixing the streams; and a plastic film, the plastic film sealed to the raised rib, forming a static mixer capable of mixing the fluid while remaining in a state of laminar flow.

A mixing segment for a static mixer has one inlet section, one outlet section dis-posed opposite of the inlet section, and a longitudinal axis being defined be-tween the inlet section and the outlet section. The mixing segment further has a plurality of first passages, each first passage adjoining the inlet section and being arranged radially with respect to the longitudinal axis, and at least one second passage adjoining the outlet section and being arranged radially with respect to the longitudinal axis. The first passages are in fluid connection with the second passage with flow paths being defined between the inlet section, said first pas-sages, the second passage and the outlet section.

A static mixer includes two or more mixing segments, each mixing segment including an inlet section, an outlet section oppositely disposed to the inlet section, a longitudinal axis defined between the inlet section and the outlet section, a plurality of mixing passages and a common distributor connected to each of the plurality of mixing passages of the mixing segment. The common distributor is arranged at the inlet section. Furthermore, inlets of the passages of the mixing segments form an inlet arrangement at the distributor of the corresponding mixing segment and outlets of the passages of the individual mixing segments form an outlet arrangement at the outlet section of the corresponding mixing segment. Thereby, the outlet arrangement is different from the inlet arrangement.