Abstract: A disc stack separator and an accelerator disc for a disc stack separator, especially a centrifugal nozzle separator, has curved blades mounted on a cone-shaped shell. The blade configuration assists in directing flow to space for the nozzles in the centrifugal separator bowl in an optimal manner, thus reducing the power consumption of the separator.

Abstract: A centrifugal separator includes a casing which delimits a space which is sealed off from and having an under pressure in relation to the surroundings, by at least one seal. A rotor is arranged for rotation around a rotational axis and forms within itself a separation space. In the separation space, centrifugal separation of at least one higher density component and at least one lower density component from a fluid takes place during operation. At least one inlet extends into the rotor for introducing the fluid to the separation space. At least one first outlet extends from the rotor for discharge of at least one component separated from the fluid during operation. The rotor includes at least one second outlet extending from a portion of the separation space to the space for discharge of at least one higher density component separated from the fluid during operation.

Abstract: A centrifugal separator includes a frame and a drive member configured to rotate a rotating part in relation to the frame around an axis of rotation. The rotating part includes a spindle and a centrifuge rotor enclosing a separation space. The rotating part is supported by the frame by at least one bearing device. The centrifugal separator further includes a system for detecting rotation of the rotating part. The system includes at least one first type of sector each occupying a first length of the perimeter of a member arranged for rotation with the rotating part, and at least one second type of sector each occupying a second length of the perimeter of the member arranged for rotation. The at least one second type of sector is spaced apart from the at least one first type of sector. The second length is different compared to the first length. The at least one first and second types of sectors are irregularly spaced around the perimeter of the member arranged for rotation.

Abstract: An oil separator that separates mist oil from processing-target gas containing mist liquid includes a plurality of separation disks. The plurality of separation disks rotate around an axis, and are stacked and spaced in an axial direction. The separation disk includes an inner peripheral part and an outer peripheral part. The inner peripheral part forms a surface of a frustum of a hypothetical cone or pyramid coaxial with the separation disk, and is inclined with respect to a radial direction toward one side in an axial direction. The outer peripheral part forms a surface of a frustum of a hypothetical cone or pyramid coaxial with the separation disk, and continuously extends outward from an outer peripheral edge of the inner peripheral part. The outer peripheral part is inclined with respect to the radial direction toward another side in the axial direction.

Abstract: A spherical centrifuge has a sinusoidal track engaged on its surface, the track circling the surface following a great circle of said centrifuge. A mechanical drive engages the track enabling rotation of the centrifuge. The track may have a constant sinusoidal amplitude and a constant sinusoidal period. The centrifuge may have an interior space and a portal into the interior space. The interior space may have any shape. The centrifuge rotates about its diameter while also reciprocating in rolling motion lateral to its forward rotational direction by following the sinusoidal track.

Abstract: A rotor assembly includes a rotor plate to rotate around a first axis; a bucket rotatably attached to the rotor plate and to rotate around a second axis; and a stop plate to rotate around the first axis relative to the rotor plate between an open position and a closed position, when in the closed position, the stop plate is to engage the bucket to fix an angular position of the bucket relative to a plane of rotation of the rotor assembly.

Abstract: A hydrodynamic cavitation unit for a hydrodynamic cavitation device is provided. The hydrodynamic cavitation device is configured for fluid communication with an inlet conduit and an outlet conduit. The hydrodynamic cavitation unit includes a body; and a plurality of lumens through the body. Each of the lumens is configured for fluid communication from the inlet conduit, through the body, and to the outlet conduit. A ratio of a total cross-sectional area of the lumens to a cross-sectional area of the inlet conduit is about 1:1. A ratio of a cross-sectional area of the hydrodynamic cavitation unit to the cross-sectional area of the inlet conduit is about 2:1. Each of the lumens may have a frustoconical or Venturi shape. Related apparatuses, systems, techniques, and articles are also described.

Abstract: A centrifuge for washing magnetic beads in a reaction vessel unit that includes at least one opening, having a housing including an inner surface and a drain, a rotor disposed within the housing, the rotor being configured to hold a reaction vessel unit with its opening(s) directed outwardly toward the inner surface of the housing, a motor coupled with the rotor to rotate around a horizontal rotation axis, and a magnetic element arranged in the rotor to apply a magnetic field to one or more reaction vessels of a reaction vessel unit held by the rotor.

Abstract: Mid-procedure termination of a mononuclear cell collection procedure may prevent collection of an amount of red blood cells that is required to harvest a complete mononuclear cell product. Blood separation systems and methods are provided for minimizing the impact of or recovering from mid-procedure termination of such a mononuclear cell collection procedure. According to one approach, blood or separated red blood cells are conveyed into a red blood cell collection container relatively early in the procedure to minimize the impact of a later termination of the procedure. According to another approach, blood and/or separated red blood cells within a fluid processing assembly are redirected through the fluid processing assembly following mid-procedure termination to allow for at least partial mononuclear cell collection.

Abstract: Accurate measurement of acceleration caused by imbalance in the balance of a rotor is realized even in high-speed rotation with an acceleration sensor which has a processing speed required in low-speed rotation and a control unit. A centrifuge according to the present invention includes a rotor, a drive source for rotating the rotor, a rotating shaft for coupling the rotor and the drive source, an acceleration sensor, and a control unit. The acceleration sensor outputs values indicating acceleration in two different directions which are perpendicular to an axial direction of the rotating shaft. The control unit obtains an acceleration corresponding value, which is a value corresponding to acceleration in a direction perpendicular to the axial direction of the rotating shaft, based on values indicating acceleration in the two different directions and stops rotation of the rotor in a case where the acceleration corresponding value satisfies a determination criteria.

Abstract: An oil separator separating mist oil from processing-target gas includes: a case, a first partition wall and a lower, second partition wall, both partitioning vertically an internal space of the case; a partition dividing a space between the first and second partition walls into an introduction path and a first chamber; a supply hole vertically penetrating the second partition wall from the introduction path to a separation chamber; a communication hole vertically penetrating the second partition wall from the first chamber to the separation chamber; a rotor in the separation chamber; a center-side space in a center part of the rotor, the center-side space communicating with the supply hole through an open, upper part of the center-side space. The rotor separates the mist oil from the processing-target gas flowing from the center-side space to an outer periphery of the rotor, where the separated oil is emitted. The processing-target gas flows into the first chamber through the communication hole.

Abstract: The present disclosure generally relates to a motor driven, high velocity decanter, and more particularly to a decanter which incorporates a horizontal rotating bowl and a rotating scroll. The decanter is capable of separating particulate material or solids from a liquid. A motor is coupled to and drives the bowl. Rotational power is transferred from the bowl to the scroll through a gearbox. An adjustable speed brake is coupled to the scroll to affect the differential speed between the bowl and the scroll. In one example, the adjustable speed brake is a positive displacement pump.

Abstract: The invention provides a tri-axial centrifuge apparatus for testing of petro-physical properties and gathering of geo-mechanical information, as well as methods of using the tri-axial centrifuge apparatus. The tri-axial centrifuge apparatus includes a tri-axial sample holder, a fluid sample holder, a centrifuge, at least one electrical sensor, at least one acoustic sensor, and an x-ray instrument.

Abstract: An apparatus for manipulating particles includes: a rotor rotatable at a speed about an axis, the rotor having an outer periphery and front and rear opposite sides; at least one chamber mounted on the rotor, each chamber having an inlet and an outlet; an umbilical assembly rotatable about the axis; and a drive mechanism configured to rotate the umbilical assembly at about one-half the speed of the rotor. The umbilical assembly includes: a curvilinear guide tube connecting to a drum at the rear side of the rotor; a flexible conduit residing in the guide tube; and first and second elongate passageways for each chamber extending through the conduit, wherein the first passageway is in fluid communication with the inlet of a respective chamber and the second passageway is in fluid communication with the outlet of the respective chamber. The passageways are held in a spaced-apart relationship relative to one another.

Abstract: A centrifugal separator includes a housing and a rotary vessel having an axis and being attached to the housing for rotation relative to the housing about the axis. Either: a) the rotary vessel has one or more magnetisable regions and the housing has one or more electromagnetic windings; or b) the rotary vessel has one or more electromagnetic windings and the housing has one or more magnetisable regions. The electromagnetic windings are selectively energisable to create a magnetic field to cause rotation of the rotary vessel.

Abstract: A solid-jacket screw centrifuge is disclosed. The centrifuge has a rotatable drum with a horizontal axis of rotation which encloses a bowl with a rotatable screw, an inlet for introducing material to be centrifuged into the bowl, at least one liquid and at least one solid discharge, where at least the solid discharge is assigned a non-rotatable housing surrounding it, at least radially bounding a discharge chamber, where the discharge chamber is designed as a drying chamber for the solid matter and has axial walls and one or more walls in the radial direction. The housing extends axially parallel to the axis of rotation at most into the conical region of the drum or the screw.

Abstract: A centrifugal separator, especially disc stack separator for separation of a suspension or mixture, has a feeding unit with an inlet and a stationary pipe. The pipe extends longitudinally from the top of the centrifugal separator through a stack of filter discs and has an opening directed to the accelerator disc a separator bowl of the centrifugal separator. The feed pipe is corrugated with spiral grooves running in the longitudinal direction of the pipe. The suspension flow is directed in the direction of rotation of the separator bowl and a soft infeed of the suspension to the accelerator disc and bowl without mechanically destroying particles or molecules of the suspension or mixture is achieved.

Abstract: An air treatment article is provided, comprising: a semipermeable barrier and a plurality of multi-staged non-film forming polymer abatement particles having a core polymer and at least one shell polymer; wherein the core polymer accounts for 1 to 25 wt % of the weight of the non-film forming polymer abatement particles; wherein the semipermeable barrier is disposed between an air atmosphere and the non-film forming polymer abatement particles; wherein the semipermeable barrier impedes passage therethrough by the non-film forming polymer abatement particles; wherein the semipermeable barrier permits passage therethrough by a for-treatment air containing a contaminant such that the for-treatment air can make contact with the non-film forming polymer abatement particles; wherein the non-film forming polymer abatement particles have an affinity for the contaminant.

Abstract: A UV reactor irradiates a flow of fluid with UV radiation. The reactor comprises: a fluid conduit defined by a heat conducting conduit body comprising one or more heat conducting walls for permitting a flow of fluid therethrough; a UV-LED operatively connected to a PCB and oriented for directing radiation into the fluid conduit. The PCB comprises a heat conducting substrate having a first surface. The conduit body is in thermal contact with the first surface of the heat conducting substrate. Heat is dissipated from the UV-LED via the heat conducting substrate, the thermal contact between the first surface of the heat conducting substrate and the heat conducting conduit body, and from the one or more heat conducting walls of the heat conducting conduit body to the fluid flowing through the fluid conduit.

Abstract: A continuous flow centrifuge bowl includes a rotatable outer body, and a top and bottom core that are rotatable with the outer body. The bottom core has a wall extending proximally from a bottom wall. The proximally extending wall is radially outward from at least a portion of the top core and, together with the top core, defines a primary separation region in which initial separation of the whole blood occurs. The bowl may also have a secondary separation region located between the top core and the outer body, and a rotary seal that couples an inlet port and two outlet ports to the outer body. The inlet port may be connected to an inlet tube that extends distally into a whole blood introduction region. Additionally, one of the outlet ports may be connected to an extraction tube that extends into a region below the bottom core.