Abstract: An enhanced gravity separation device rotates a plurality of rectangular section vessels about a central drive shaft. Each vessel has an array of closely spaced plates positioned with the vessel between outer regions and inner regions. A feed of mixed dense and less dense fluid matter is fed to the outer regions via a pipe and conduits, through the plate arrays and into the inner regions. Overflow of less dense matter reports to the inner regions and underflow of denser matter reports to the outer region. The vessels may be fluidised by liquid supplied into the outer regions via annulus and conduits.

Abstract: A process for separating platelet rich plasma from a blood sample using a platelet rich plasma separator system is disclosed. The system includes an inner wall having a top edge and a central axis that is surrounded by a depth filter having a capacity to receive all of the erythrocytes in the blood sample, where an inner surface of the inner wall has an angle of about 0.2° from the central axis of the inner wall. The process includes spinning the inner cylinder at its central axis at a speed that separates the erythrocytes from plasma and platelets and causes the erythrocytes to collect against an inner surface of the depth filter. The cylinder is continually spun for a sufficient time to allow substantially all of the erythrocytes to flow up the inner surface and over the top edge into the depth filter, leaving platelet enriched plasma (PRP) in the inner cylinder, such that upon discontinuing the spinning, permits the platelet enriched plasma to flow to the bottom of the inner cylinder.

Abstract: Disclosed is a separator-concentrator, such as for separating and concentrating platelet-rich-plasma (PRP) from whole blood that is suitable for office use or emergency use for trauma victims. The PRP separator comprises a motorized centrifugal separation assembly and a concentrator assembly. The centrifugal separation assembly comprises a centrifugal drum separator and a motor having a drive axis connected to the centrifugal drum separator. The concentrator assembly comprises a water-removal module for preparing PRP concentrate.

Abstract: A particle separation apparatus includes a base, a disc-shaped container rotatable on the base at a constant speed and a suspension supply tank for separating in the container particles contained in a suspension supplied from the tank according to specific gravities or particle diameters of the particles. The container includes a plurality of centrifugation vessels disposed around a rotation axis and in a circumferential direction of the container, particle supply cylinders disposed at a center of the container for discharging the particles in the suspension toward the vessels and a lid, and has a structure controllable in rotational speed to adjust a distance of relative movement in a rotation direction between large-gravity particles and small-gravity particles. The vessels are individually in a form of dents independent of one another and are each formed of an inner circumferential wall and a bottom wall.

Abstract: A centrifuge is employed to continuously remove particulates from a fluid. In one embodiment, the centrifuge removes small particles of soot from lubricating oil of large diesel engines. The fluid in introduced into the centrifuge through an inducer so that vortexes are not propagated in the fluid. Flow constrainers and flow straighteners maintain laminar flow of the fluid as it passes axially through the centrifuge. An exducer decelerates the fluid prior to its exit from the centrifuge. The exducer thus contributes to maintaining laminar flow conditions. Laminar flow may contribute to the soot-removal effectiveness of the centrifuge.

Abstract: A Platelet Rich Plasma separator assembly is disclosed. The assembly can include a cylindrical outer wall closed at the top by an upper plate and closed at the bottom. A bottom plate having an upper surface sloped down to a central opening. The top edge of the inner wall terminates at a distance from the upper plate to define an annular erythrocyte passageway therebetween. The inner wall has an outer surface and an inner surface that slopes radially inward from its top edge to its bottom at an angle of from 0.2 to 5 degrees with a central axis of the inner wall. A cylindrical depth filter is positioned between the inner surface of the outer wall and the outer surface of the inner wall in communication with the inner wall through the erythrocyte passageway.

Abstract: A centrifuge for separating solid-liquid mixtures including: a rotating bowl having a head wall with at least one drain opening for clarified liquid, said bowl having a rotational axis; a weir plate fixed to the head wall of the bowl and rotating with bowl, wherein the weir plate is aligned with the at least one drain opening; a choke plate coupled to and rotating with the rotating bowl, the choke plate having surface axially aligned with the drain opening or the weir plate, wherein said choke plate is movable axially with respect to the head wall, and a gap having between the drain opening or the weir plate, wherein the gap has a radially inward inlet receiving the clarified liquid from the bowl and a radially outward outlet for discharging the clarified liquid from the bowl.

Abstract: A PRP separator-concentrator comprising a housing, a separation assembly, and a concentration assembly. The concentration assembly has a concentration sump. An axially concentric rigid stationary outlet tube is secured to the housing and extends through the separation assembly to the sump. The separation assembly is attached to and positioned above the concentration assembly to form a combined separator-concentrator assemblage that is rotatable about the outlet tube. The separation assembly includes a separation chamber lined with a depth filter having pores and passageways that are sized to receive and entrap erythrocytes during centrifuging. The concentration chamber has a floor for supporting desiccated beads and a wall with at least one opening closed with a screen. The concentrator can have a distribution of upright screen supports, the upright screen supports having an inner surface and an outer surface, the cylindrical screen being supported on the outer surface of the upright screen supports.

Abstract: In a compressible unit a plurality of separating discs are provided and adapted to being capable, in a compressed state, of being mounted in and removed from a centrifugal separator rotor, which rotor during operation is rotatable about an axis of rotation. The unit includes a support, a pressure surface, between which the separating discs are disposed abutting against one another. Guide surfaces abut against the separating discs and control radial and polar position. At least one compression mechanism is adapted during compression of the unit to press the support and pressure surface towards one another so that the discs are compressed. During compression, the guide surfaces allow relative movement between the support and pressure surface and the separating discs, and are of at least sufficient extent in the compression direction for the position-controlling abutment between the guide surfaces and the separating discs to be maintained throughout the relative movement during the compression.

Abstract: A self-dumping separator having a vertical axis of rotation and having a drum (1) into which a disc stack (3) made up of a plurality of conical discs (4) is inserted, a centrifuge feed being introducible via an inlet pipe (6) and a distributor (7) into the centrifuge space (2), which is enclosed by the drum (1), at least two or more fins (17) being arranged in an annular solids space (15) that is arranged radially outside the disc stack (3), the clearance between the fins (17) and the inner wall of the drum (1) being at least three millimeters.

Abstract: The teachings of the present disclosure provide methods and apparatus for removing substances from a process fluid. The system may include a centrifuge body rotatable around a longitudinal axis, the centrifuge body having a first end and a second end. The first end may be configured for receiving a process fluid. The second end may be configured for dispensing a clarified fluid. The centrifuge body may include a first working space and a second working space. The working diameter of the second working space may be greater than the working diameter of the first working space.

Abstract: A method for separating particulate matter from a fluid includes feeding a fluid containing a particulate matter into a chamber of a vessel through an inlet, the chamber being at least partially bounded by a peripheral wall and the chamber also communicating with a first outlet and a second outlet. The vessel is rotated such that at least a portion of the particulate matter settles out of the fluid against at least a portion of the peripheral wall. At least a portion of the particulate matter settled against the peripheral is subsequently disturbed so that at least a portion of the particulate matter is resuspend within the fluid. The method further includes removing at least a portion of the fluid having the resuspended particulate matter therein through the first outlet and removing through the second outlet the fluid from which the particulate material has settled out.

Abstract: A continuous flow type centrifuge to which a liquid sample is continuous supplied. The centrifuge includes a rotor rotatably supported by a main housing and drivingly rotated by a motor. The rotor includes a cylindrical rotor body, a hollow cylindrical core body, and end plates. The hollow cylindrical core body is disposed in the rotor body providing a space therebetween. The core body has an upper open end, a lower open end and an outer peripheral surface provided with a plurality of partitioning walls positioned at an equal interval in a circumferential direction of the core body for providing a plurality of cavities each defined by the core body, the rotor body and neighboring partitioning walls. The end plates include an upper end plate disposed to cover the upper open end, and a lower end plate disposed to cover the lower open end.

Abstract: A separator includes a vessel having a peripheral wall bounding a chamber. The vessel is rotatable about a rotational axis extending through the vessel. The chamber communicates with an inlet and a first outlet. A tubular member is disposed within the chamber and communicates external thereof. A plurality of fins are disposed within the chamber. Each of the fins extends from toward the tubular member to toward the peripheral wall. A first tube projects from the tubular member to toward the peripheral wall. The first tube has a second outlet in communication with the chamber. The first outlet is disposed closer to the rotational axis than the second outlet such that during use a fluid boundary line first outlet and the second outlet.

Abstract: An imperforate bowl centrifuge for phase separation employing a rotatable outer cylinder having an interior wall with a plurality of indentations each with an orifice, and an outer wall with heavy phase waste routing channels leading from the orifices to a waste control valve. Separated heavy phase particles collect in the channels and flow by force of pressure, and exit through the waste control valve at one end of the outer cylinder when it is opened to release the waste. An outlet for the separated light phase fluid is disposed at another end of the outer cylinder. The channels in the outer wall may be axially or angularly disposed to force the separated heavy phase toward the waste control valve.

Abstract: A continuous flow type centrifuge to which a liquid sample is continuous supplied. The centrifuge includes a rotor rotatably supported by a main housing and drivingly rotated by a motor. The rotor includes a cylindrical rotor body, a hollow cylindrical core body, and end plates. The hollow cylindrical core body is disposed in the rotor body providing a space therebetween. The core body has an upper open end, a lower open end and an outer peripheral surface provided with a plurality of partitioning walls positioned at an equal interval in a circumferential direction of the core body for providing a plurality of cavities each defined by the core body, the rotor body and neighboring partitioning walls. The end plates include an upper end plate disposed to cover the upper open end, and a lower end plate disposed to cover the lower open end.

Abstract: A separator includes a vessel having a peripheral wall bounding a chamber. The vessel is rotatable about a rotational axis extending through the vessel. The chamber communicates with an inlet and a first outlet. A tubular member is disposed within the chamber and communicates external thereof. A plurality of fins are disposed within the chamber. Each of the fins extends from toward the tubular member to toward the peripheral wall. A first tube projects from the tubular member to-toward the peripheral wall. The first tube has a second outlet in communication with the chamber. The first outlet is disposed closer to the rotational axis than the second outlet such that during use a fluid boundary line first outlet and the second outlet.

Abstract: A multiple-component fluid mixture is separated by feeding the fluid mixture into a chamber of a vessel through an inlet, the chamber being at least partially bounded by a peripheral wall and the chamber also communicating with an outlet. The fluid mixture includes a heavy component and a light component. The vessel is rotated about a rotational axis extending through the vessel such that the heavy component collects toward at least a portion of the peripheral wall of the vessel and the light component collects toward the rotational axis. The light component is removed through the outlet channel. The heavy component is removed through a conduit disposed within the chamber, the conduit extending from the heavy component toward the rotational axis and out of the vessel.

Abstract: A centrifugal extractor has a rotor supported rotatably in a housing 10, and an aqueous phase liquid and an organic phase liquid are supplied to the outer circumference of the rotor and mixed between the housing and the rotor. A mixed phrase liquid is sucked into the rotor and is separated into two phases in a centrifugal force field generated in the inside of the rotor, and the separated aqueous phase liquid and organic phase liquid are discharged to an aqueous phase collector 50 and an organic phase collector 44, respectively. A cavity portion is provided in the center of the rotor, and a neutron absorption body 60 is disposed in the cavity portion. Preferably, the rotor has a lower rotating and supporting mechanism (such as a sliding bearing 66), and a neutron absorption material is sealed into the lower rotating and supporting mechanism. By such a centrifugal extractor, criticality safety and durability can be enhanced, even when the extractor is designed to be larger-size and larger-capacity.

Abstract: A bowl assembly for a rotating machine includes a bowl mounted for rotation about an axis of rotation. A feed inlet or pipe is connected to the bowl for introducing a feed slurry into the bowl. The bowl also has a liquid-phase outlet. A flow guide member is disposed inside the bowl about the axis for guiding a liquid phase in an at least partially circumferential or annular path about the axis. The guide member has an outer edge spaced a predetermined distance from an inner surface of the bowl.

Abstract: A self-driven centrifuge for separating particulate matter out of a circulating liquid includes a base plate and a rotor shell. The base plate has a center tube extending therefrom along a longitudinal axis. The center tube is constructed and arranged to deliver fluid containing particulate matter. A rotor shell has an inner cavity and a plurality of spiral vanes extending along the longitudinal axis within the inner cavity. The spiral vanes extend spirally around the center tube and the spiral vanes are integrally formed with the rotor shell. In one form, spiral vanes are also formed on the base plate and are nested in between the spiral vanes of the rotor shell.

Abstract: The present invention relates to a centrifuge apparatus. The centrifuge apparatus is operable at certain predetermined parameters depending upon a product to be separated and is useable with a plurality of rotor assemblies. For example, a first rotor assembly of said plurality of rotor assemblies includes a first core having a first core configuration which is contained within a rotor housing of the first rotor assembly to define a first volume capacity such that the product passing through the first rotor assembly having the first volume capacity during rotation of the first rotor assembly in the centrifuge apparatus achieves a first particle separation of the product.

Abstract: The invention relates to an apparatus comprising a drum drivable in rotation having a conical jacket wall which is mounted on a fixedly arranged core; supply means for carrying the contaminated liquid into the interior of the drum; discharge means for discharging the heavy contaminants from the part of the drum in the proximity of the largest jacket diameter; an at least substantially cylindrical ceramic filter received in the core; and drainage means arranged in the fixed core for draining the cleaned liquid.

Abstract: A self-driven centrifuge for separating particulate matter out of a circulating liquid includes a base having a pair of tangential jet nozzles for generating the self-driven force for the centrifuge. Connected to the base is a centrifuge shell which defines a hollow interior space. A hollow rotor hub having a central axis of rotation is assembled to the base and extends through the hollow interior space. A support plate is positioned within the hollow interior space and, in cooperation with the rotor hub, defines an annular flow exit opening for the circulating liquid. Positioned within the hollow interior space is a separation vane module which is constructed and arranged so as to extend around the rotor hub and positioned so as to be supported by the support plate. The separation vane module includes a plurality of axially-extending and spaced-apart separation vanes.

Abstract: A self-driven centrifuge for separating particulate matter out of a circulating liquid includes a stand pipe that is constructed and arranged to deliver fluid. A vane assembly is adapted to receive fluid from the stand pipe. The vane assembly includes a liner and a plurality of vanes. The liner defines an inner cavity and the vanes extends within this inner cavity. Each of the vanes has a radially outer edge portion and integrally formed with the liner and an opposite free edge. The vanes are oriented in a parallel relationship with the stand pipe, and the free edges of the vanes define a stand pipe passage in which the stand pipe is received.

Abstract: A five-part rotor assembly is easily disassembled for cleaning and/or sterilization. The five parts comprise a rotor sleeve, a rotor head, a weir plate, a rotor cover and an internal vane package. Each of these parts is machined as a unitary piece or otherwise fabricated without weldments.

Abstract: A solid-liquid/liquid-liquid separator includes a vessel having a peripheral wall bounding a chamber. The chamber communicates with an inlet port and an outlet port. The vessel is rotatable about a rotational axis extending through the vessel. Disposed within the chamber are a plurality of fins. Each of the fins radially outwardly projecting from the rotational axis in substantially parallel alignment with the rotational axis. The fins interact with the peripheral wall to form a plurality of discrete flow channels that longitudinally extend through the vessel. An exit tube is disposed along a portion of the rotational axis of the vessel. The exit tube has a first end disposed within the chamber and an opposing second end in fluid communication with the exterior of vessel. A plurality of extraction tubes radially outwardly projecting from the rotational axis within the chamber.

Abstract: A centrifugal device for separating lubricating or other fluid from fluid impregnated scrap, metal shavings or the like, includes a separator bowl disposed within the centrifuge device and a drive mechanism for rotating the separator bowl. The separator bowl includes a bottom wall and an angled side wall. A plurality of blades include bottom flanges and angled side flanges that mateably engage the bottom wall and the side wall, respectively. Threaded fasteners each include a head abutting an exterior surface of the side wall and a shaft that extends through the side wall and threadably into an associated one of the blades. The fastener heads characteristically are positioned in a location where the heads are readily accessible from outside the separator bowl and where the heads will not be worn by the scrap and metal shavings processed through the centrifugal device. A slotted clamp plate clampingly secures the bottom flanges to the bowl bottom to securely retain the blades in place.

Abstract: A machine for separation two liquids of different densities from a mixture has a separation chamber with radially disposed fins that rotates about a central axis. The separation chamber has an outside wall with a first weir extending toward the central axis and spaced from the central axis a distance or radius that is less than the distance of the boundary between the two fluids in the separation chamber. The mixture separates into a first volume of the first fluid and a second volume of the second fluid. The first fluid exits past the first weir. The second fluid passes into a channel or volume and then past a second weir. The channel or volume is sized so that the angular momentum of the second fluid is conserved and develops a force to retain the first fluid and the second fluid in the separation chamber. The separation chamber is in a housing which contains a first collecting chamber to collect the first fluid and a second collecting chamber to collect the second fluid.

Abstract: A rotor (1) designed to be installed in the housing (16) of a free jet centrifuge, the rotor being provided with at least one inlet (3) and at least one outlet (4), which outlet is configured as a nozzle which is oriented at least substantially tangentially to the axis of rotation (13) of the rotor. The rotor is provided with receptacles for bearings for rotatably mounting the rotor, and the rotor having at least one guide element (7) which extends from an inner wall (38) to an outer wall (39) of a rotor interior space (8). At least the rotor shell (11) is made of synthetic resin material. Owing to its form, the synthetic resin centrifuge rotor can be made up of a reduced number of parts. The rotor may be composed of two elements, a base (10) and a shell (11), connected together either by a snap connection or by welding, such as vibration welding. An oil centrifuge fitted with such a rotor is particularly suitable for cleaning lubricating oil used in an internal combustion engine.

Abstract: A one-pass centrifuge separator for mixtures of two liquids which may also contain gas. The centrifuge uses separation zones on a rotor's inner wall to improve separation efficiency and minimize turbulent mixing. The zones consist of surface and interface vanes, and baffle plates to control flow at the fluid interface. The zones also retain an open concept to facilitate washing by cleaning fluids which are provided by nozzles installed on a stationary feedpipe mounted along the rotational axis of the centrifuge. A fluid accelerator gradually accelerates the fluid from the feedpipe to the inner wall of the rotor.

Abstract: A centrifugal separator for separating solid from liquid comprises a stand, a lower cover, a leaf-blade base, an upper cover, a fender wall, and a scrape assembly. The centrifugal force produced by high-speed rotation of the upper and the lower cover enables a plurality of steel beads to create a squeezing force that is used to balance the pressure exerted on the upper cover by the thrown residue B. By foregoing organization, control of the squeezed pressure as well as thrown quantity of the residue which escapes from the gap C between the upper and the lower cover is possible. Moreover, the separated water will be drained via a drainpipe in order to separate the slurry completely for time and labor cost saving.

Abstract: A centrifugal separator for a flowable mixture having a housing rotatable defining a separation chamber. At least one magnet is carried by the housing and is rotatable therewith to create a magnetic field within the housing with the magnetic lines of force carried around the axis of rotation during rotation of the housing. The chamber is divided into sub-chambers by radially extending baffles. The mixture is retained in each sub-chamber during housing rotation so as to stabilize the mixture and rotate it together with the housing. Housing scrapers face the inside surface of the housing to remove from that surface material which is attracted to the magnet. This action tends to draw the molecules of the mixture into alignment with the rotating lines of force thereby polarizing the molecules and decreasing molecular bonding. The centrifugal action causes the polarized molecules with decreased bonding, to move apart with the heavier molecules moving radially outwards further from the lighter molecules.

Abstract: A centrifugal separator of the type including a rotor, which is supported by a driving shaft and which forms a separation chamber and an inlet chamber. The inlet chamber being delimited by a dividing wall. An inlet tube extends axially through the dividing wall at one axial end of the inlet chamber at which the inlet channel in the tube opens. In the inlet chamber there is arranged a number of separating discs. A central part of the inlet chamber is connected to an outside space through an evacuating channel. In order to efficiently and gently separate a supplied liquid mixture without demanding a large space in the centrifugal separator, the inlet device is provided with a baffle which, between the opening of the inlet channel and the discs, extends from the rotational axis of the rotor and delimits a liquid filled inlet space. The liquid in the inlet space flowing during operation from the inlet channel radially outwards into the liquid body.

Abstract: A scroll liner for use in the discharge housing of a centrifugal separator device. The scroll liner comprises a plurality of segments which are replaceable in the event of excessive wear. The segments are of a length which is less than the space between adjacent blades having blade portions located in the discharge housing such that a segment can be removed from the separator device in the space formed by adjacent blades.

Abstract: A method for mixing and separating immiscible liquid salts and liquid metals in a centrifugal contractor. The method includes introducing the liquids into an annular mixing zone and intensely mixing the liquids using vertical vanes attached to a rotor cooperating with vertical baffles, a horizontal baffle, and bottom vanes attached to the contactor housing. The liquids enter the contactor in the range of 700-800 degrees Celsius. The liquids are separated in the rotor into a dense phase and a light phase which are discharged from the contactor.

Abstract: Apparatus for cleaning dirt/oil/water mixtures that utilizes a rotating drum wherein the inner cylindrical wall of the drum includes a plurality of V-shaped troughs secured in continuous circumferential array with each vee or apex directed radially outward and secured to the inner drum wall. Canted baffle plates of triangular shape are then secured within each trough with triangle base secured at the vee open top and the triangle apex secured at the vee apex. Input dirty oil having water and dirt suspended is input at one end of the drum proximate the base ends of the baffle plates while lighter weight oil products are separated inward along the axis of the drum and heavy dirt and water materials are driven to the baffle apex points from which they may be extracted.

Abstract: A centrifugal separator which enables extraction of particles as concentrated liquid of a uniform concentration under a low pressure without damaging to the particles and is particularly suitable for extraction of weak cells such as animal cells. The centrifugal separator includes a plurality of particle collecting chambers (104: 104a) partially defined by an inner wall face (121) of a rotor (103) the diameter of which increases substantially continuously and suddenly comparing with the diameter of another adjacent portion for the inner wall face of the rotor. Particles centrifugally separated from liquid in a separating chamber (109) in the rotor are introduced into the particle collecting chambers in which they are accelerated suddenly to form soil suspension having an increased fluidity. The soil suspension is then introduced into horizontally extending deriving pipes (105: 105a: 105b: 105c: 105d: 105e) of a small sectional area and then extracted to the outside by way of an extracting pipe (118).

Abstract: A liguid separation system includes a first separator unit, a second separator unit and means including a pump for flowing a liquid mixture from a system inlet to the inlet of the first separator unit. A first outlet of the first separator unit is connected to the inlet of the second separator unit, a second outlet of said second separator unit is connected to the inlet of the first separator unit, a first outlet of the second separator unit is connected to a system outlet, and feedback means is adapted to provide continuous flow during system operation of at least about 0.01 gallon per minute from a second outlet of the second separator unit to the inlet of the first separator unit.

Abstract: A centrifugal separator has a rotor with an inlet device comprising means forming a receiving chamber that surrounds a stationary inlet tube extending into the rotor. The inlet tube opens into a receiving compartment of the receiving chamber. The receiving chamber also has an induction compartment which surrounds the inlet tube at some distance from its opening.A deflecting member separates the receiving compartment from the induction compartment and leaves a passage between itself and the inlet tube. Induction members connected with the rotor are operable to induce liquid rotation in the induction chamber radially outside the level of said passage between the deflecting member and the inlet tube, whereas no substantial induction of rotation should take place in the receiving compartment.

Abstract: A blood bag is described which aids in maintaining the separation of blood components. This bag is constructed of a flexible plastic, has a conical top leading to an outlet line and internal septa to reduce swirling of the bag's contents during rotor deceleration. The bag is adapted to be placed in a split sleeve prior to placement in the swinging bucket of a centrifuge rotor. A collar is placed over the top of the bag to aid in reducing wrinkles in the bag.Methods are described for reducing contamination of separated blood components by reducing bag wrinkles, reducing swirling of the blood fractions during rotor deceleration, and reducing mixing during expression.

Abstract: A centrifuge apparatus (10) for separating multi-phase fluid is disclosed. The centrifuge apparatus (10) includes a bowl-like structure (12) rotatably mounted in a housing (14) for rotation about a vertical axis. The centrifuge apparatus (10) further includes means for introducing multi-phase fluid into the bowl (12) and means for driving the bowl (12) at a predetermined rotation speed. A rotor assembly is coaxially mounted in the bowl (12) for rotation therewith to accelerate or impel the multi-phase fluid such that the fluid is separated into heavier phase fluid and lighter phase fluid with solid particles being collected on the inner surface of a bowl side wall portion (16).A top wall member (18) of the bowl (12) defines axially directed openings (50) therein for discharging the heavier phase fluid. Discharge means positioned in the cylindrical side wall portion (16) extend radially into the interior of the bowl (12) for discharging the lighter phase fluid.