Abstract: A centrifugal separator includes a rotor arrangement and a drive arrangement. A user of electric energy is arranged in the rotor arrangement. The centrifugal separator includes a rotary transformer, the rotary transformer including a transformer stator and a transformer rotor. The transformer stator and the transformer rotor are arranged adjacent to each other with an airgap therebetween. The transformer rotor includes a secondary coil and is rotatable together with the rotor arrangement. The secondary coil is electrically connected to the user of electric energy arranged in the rotor arrangement for providing the user of electric energy with an electric current. The user of electric energy may be an actuator, and/or a sensor, and/or a control unit.

Abstract: A centrifugal separator for cleaning gas containing contaminants includes a stationary casing, enclosing a separation space through which a gas flow is permitted, a gas inlet extending through the stationary casing and permitting supply of the gas to be cleaned, a rotating member including a plurality of separation members arranged in said separation space and being arranged to rotate around an axis of rotation, a gas outlet configured to permit discharge of cleaned gas and including an outlet opening through a wall of the stationary casing, a drainage outlet configured to permit discharge of liquid impurities separated from the gas to be cleaned, and a drive member, for rotating the rotating member.

Abstract: A fuel treatment system for an engine includes at least two centrifugal separators for cleaning fuel oil for an engine, at least two variable feed pumps for supplying fuel oil to be cleaned to the centrifugal separators, respectively, and at least two separator control units configured to control the operation of the centrifugal separators and the speed of the variable feed pumps, thereby controlling the flow rate of fuel oil to be cleaned to the separators. The system further includes a system control unit, other than the separator control units, configured for receiving information from a unit in the fuel treatment system that is arranged downstream of the centrifugal separators or from an engine arranged to use the fuel that is treated by the system, and for sending operational requests to the separator control units based on the received information.

Abstract: Blood separation systems and methods are provided for controlling the interface between separated blood components. The system includes a centrifuge assembly having a light-transmissive portion, a light reflector, and a fluid processing region therebetween. An optical sensor system emits a scanning light beam along a path toward the light-transmissive portion, which transmits at least a portion of the scanning light beam to the fluid processing region and the light reflector. The light reflector reflects at least a portion of the scanning light beam toward the optical sensor system along a path substantially coaxial to the path of the scanning light beam from the optical sensor system toward the light-transmissive portion of the centrifuge assembly. The scanning light beam may be a white light beam or narrow spectrum beam. The reflected beam may be directed through the optical sensor system via optical fibers.

Abstract: A centrifuge including: a rotor configured to be driven by a motor and to hold a sample, a centrifuge inverter, a chamber accommodating the rotor, a temperature sensor configured to detect the temperature of the chamber, a cooling machine configured to cool the chamber and including a compressor, a compressor inverter, a compressor motor configured to be controlled in a variable speed and a control device, wherein the control device carries out a feedback control of the compressor motor based on a preset temperature and a detected temperature of the temperature sensor when the rotation number of the compressor motor is larger than a predetermined rotation number, and the control device carries out an intermittent control for turning ON-OFF the cooling function of the compressor when the rotation number of the compressor motor is smaller than a predetermined rotation number.

Abstract: A centrifuge for high-speed centrifuging, includes: a shaft, mounted for continuous rotation about its axis, the shaft having a working section having a loading end and an unloading end; an acceleration member mounted adjacent to the loading end for rotation with respect to the shaft and; a deceleration member mounted adjacent to the unloading end for rotation with respect to the shaft; auxiliary drive arrangement for accelerating the acceleration member and the deceleration member to the shaft speed; carriages for supporting specimens for centrifugation. The carriages are slideably mounted for traversing from the acceleration member to the working section and from the working section to the deceleration member. A carriage may be accelerated on the acceleration member and then transferred to the working section for a period sufficient to perform centrifuging and then transferred from the working section to the deceleration member.

Abstract: A centrifuge including a bowl, a bowl drive motor, a screw conveyor, a screw conveyor drive motor, a pump, a pump motor, a bowl VFD to drive the bowl drive motor, a conveyor VFD to drive the screw conveyor drive motor, a pump VFD to drive the pump drive motor, an analysis assembly and a computer electrically connected to the bowl VFD, the conveyor VFD, the pump VFD, and the analysis assembly. The analysis assembly is configured to automatically sample slurry pumped into the bowl and automatically transmit data, characterizing the slurry, to the computer. The computer is configured to calculate control schemes for the bowl VFD, the conveyor VFD, and the pump VFD using the data and, transmit control signals to the bowl VFD, the conveyor VFD and the pump VFD to operate the bowl VFD, the conveyor VFD and the pump VFD according to the control schemes.

Abstract: Processor unit for processing and controlling a preparation of a blood sample placed in a preparation unit arranged in said processor unit comprising a piston placed in a first chamber for containing the blood sample. A part of the processed blood moves from the first chamber to a second chamber. The blood sample is centrifuged into separate layers comprising an outer layer adhering to the inner side of the outer first chamber wall and an inner layer placed opposite the outer layer. That the processor unit further comprises a first unit for emitting an outcome signal through the first chamber and a second unit for detecting after the signal has passed the first chamber an income signal. The piston is moved as a function of the detected income signal of the second unit.

Abstract: An extended range position sensor system includes a first set of spaced-apart magnets, a first sensor, a second set of spaced-apart magnets, a second sensor, and a processor. The first sensor is associated with and is movable relative to the first set of magnets, and is configured to generate a first sensor output signal in response to relative movement between the first sensor and the first set of magnets. The second sensor is associated with and is movable relative to the second set of magnets, and is configured to generate a second sensor output signal in response to relative movement between the second sensor and the second set of magnets. The processor is coupled to receive the first and second sensor output signals and is configured, in response thereto, to generate a position signal.

Abstract: A continuous centrifuge includes: a cylindrical rotor configured to separate a specimen; a centrifuging chamber accommodating the rotor; a driving unit configured to rotate the rotor; a specimen line configured to continuously supply and discharge the specimen to and from the rotor during rotation of the rotor; and a controller configured to control the driving unit. The control unit has a cleansing mode which flows a liquid chemical through the specimen line so as to conduct sterilization and/or cleansing while rotating the rotor.

Abstract: The present invention relates to a centrifuge having a compressor cooling device and it also relates to methods for controlling a compressor cooling device of a centrifuge. The centrifuge according to the invention has a controllable throttle device in the refrigeration cycle of the compressor cooling device.

Abstract: A centrifuge including a bowl, a bowl drive motor, a screw conveyor, a screw conveyor drive motor, a pump, a pump motor, a bowl VFD to drive the bowl drive motor, a conveyor VFD to drive the screw conveyor drive motor, a pump VFD to drive the pump drive motor, an analysis assembly and a computer electrically connected to the bowl VFD, the conveyor VFD, the pump VFD, and the analysis assembly. The analysis assembly is configured to automatically sample slurry pumped into the bowl and automatically transmit data, characterizing the slurry, to the computer. The computer is configured to calculate control schemes for the bowl VFD, the conveyor VFD, and the pump VFD using the data and, transmit control signals to the bowl VFD, the conveyor VFD and the pump VFD to operate the bowl VFD, the conveyor VFD and the pump VFD according to the control schemes.

Abstract: The invention refers to a centrifuge for separating whole blood into its blood components and a method for extracting a highly enriched thrombocyte concentrate out of whole blood. For this purpose, the centrifuge comprises a closed loop and/or open-loop control unit as well as a drive unit coupled to the closed loop and/or open-loop control unit, a rotor (12) having at least two container receptacles (14a, 14b; 16a, 16) for removably holding containers (18, 20, 22, 24) being in fluid communication with each other, at least one sensor arranged between the container receptacles (14a, 14b; 16a, 16b) and coupled with the closed loop and/or open-loop control unit for detecting a separation layer. Herein, a motor/gear unit (30a, 30b, 32a, 32b) coupled to the closed loop and/or open-loop control unit is associated with each of the container receptacles (14a, 14b; 16a, 16b).

Abstract: A system for centrifugation and processing multi-units of blood simultaneously. The system having a plurality of equally spaced blood processing stations integrated to the rotor and spinning therewith around the axis of rotation. Each station is fit to receive a set of fluidly interconnected containers having blood for processing. Hydraulic means are used to automatically balance the rotor by having a mechanism to transfer fluid to special chambers on the processing stations in order to compensate for the weight variations of the multiple blood units mounted to the rotor. A Computer controls the centrifuge operations.

Abstract: Disclosed is a sludge processing system having a centrifugal separator concentrating the sludge and a furnace heat-treating the concentrated sludge. It allows automatic control in which the operational condition of the centrifugal separator operates under optimal conditions according to the operational state of the furnace. The control device sets a variable range of a differential speed between the bowl and screw conveyor of the centrifugal separator, and variably controls the differential speed so concentrated sludge convey torque of the screw conveyor achieves a torque corresponding to a moisture content requested by the furnace within the variable range, when the differential speed varies within a certain previously set range and the concentrated sludge convey torque of the screw conveyor maintains the torque corresponding to the moisture content requested by the furnace for a certain period of time being previously set, changes a control value of the centrifugal force and the torque.

Abstract: Disclosed is a sludge processing system having a centrifugal separator which concentrates the sludge and a furnace which heat-treats the concentrated sludge, and allows the automatic control in which the operational condition of the centrifugal separator is set to the optimal condition in accordance with the operational state of the furnace. The control device sets a variable range of a differential speed between the bowl and the screw conveyor of the centrifugal separator, and performs a variable control of the differential speed so that the measurements concentration moisture of the concentration sludge achieves a moisture content requested by the furnace within the variable range, when the measurements concentration moisture of the concentration sludge maintains the moisture content requested by the furnace for a certain period of time being previously set, changes a control value of the centrifugal force.

Abstract: Lowering of process quality of a sample is prevented even when a rotor is slowly decelerated taking a long time upon finishing a centrifugal process. A centrifuge having a steady operation mode of rotating a rotor at an inputted steady rotation speed and a deceleration stop mode of stopping the rotor by deceleration. When a remaining time of the steady operation mode is within a stop preparation time, a target controlled temperature of the rotor chamber is set from a first target controlled temperature to a second target controlled temperature that is higher than the first target controlled temperature. By setting the target controlled temperature of the rotor chamber high before switching to the deceleration stop mode, temperature of the rotor chamber is controlled to be close to a set temperature of the rotor and thus excessive cooling of a sample loaded to the rotor can be prevented.

Abstract: Illustrative embodiments of automated sample workcells and methods of operation are disclosed.

Abstract: An apparatus for separating at least two discrete volumes of a composite liquid into at least a first component and a second component, comprising a valve design that facilitates loading and unloading of blood bags and associated tubing and bag sets. The valves comprise a rotating head, mounted on a shaft, which assumes a “load” position. The head pivots to an “open” position, which secures the tube in its designated location, but which maintains an open lumen through the tube. When the head is in a “closed” position, blood components cannot flow through the tube. The valve apparatus comprises means for maintaining a constant pressure on the tube and contact with the tube as the tube is melted and sealed.

Abstract: There is provided a centrifuge that includes a motor, a rotor chamber accommodating a rotor that is rotated by the motor, a vacuum pump that sucks air from the rotor chamber to reduce a pressure therein, a controller that controls the centrifuge to operate selectively in one of a normal centrifuge operation mode and a pulsed operation mode in which the rotor is rotated for a short time at a speed equal to or lower than a predetermined set value, and an interface device connected to the controller to input information regarding the operation mode of the centrifuge, wherein the controller controls the vacuum pump to turn on when the centrifuge operation mode is selected by the interface device and to turn off when the pulsed operation mode is selected.

Abstract: A centrifuge for separating blood having a camera observing fluid flow, and a controller controlling the flow. The location of an interface is detected by image processing steps, which may comprise the steps of “spoiling” the image, “diffusing” the image, “edge detection”, “edge linking”, “region-based confirmation”, and “interface calculation”. “Spoiling” reduces the number of pixels to be examined preferentially on orthogonal axis oriented with respect to the expected location of the interface or phase boundary. “Diffusing” smoothes out small oscillations in the interface boundary, making the location of the interface more distinct. “Edge detection” computes the rate of change in pixel intensity. “Edge linking” connects adjacent maxima. “Region-based confirmation” creates a pseudo image of the regions that qualify as distinct. “Final edge calculation” uses the points where the shade changes in the pseudo image, averages the radial displacement of these points for the interface position.

Abstract: A centrifuge includes a vacuum pump machine configured of an auxiliary vacuum pump and an oil diffusion pump for exhausting gas inside a rotary chamber to outside, in which a rotor rotates at high speed. In the centrifuge, a thermistor for detecting a temperature of oil and an oil surface inside a boiler of the oil diffusion pump is provided inside the boiler, and power of a heater is adjusted with the temperature detected by the thermistor, so that a degree of vacuum inside the rotary chamber is stably reduced from atmospheric pressure to a high vacuum state. Besides, when the heater does not heat, a current is carried through the thermistor for self-heating, and it is determined from variation in a resistance value whether the oil exists or not at a position at which the thermistor 8 is placed.

Abstract: Centrifuges are useful to, among other things, remove red blood cells from whole blood and retain platelets and other factors in a reduced volume of plasma. Platelet rich plasma (PRP) and or platelet poor plasma (PPP) can be obtained rapidly and is ready for immediate injection into the host. Embodiments may include valves, operated manually or automatically, to open ports that discharge the excess red blood cells and the excess plasma into separate receivers while retaining the platelets and other factors in the centrifuge chamber. High speeds used allow simple and small embodiments to be used at the patient's side during surgical procedures. The embodiments can also be used for the separation of liquids or slurries in other fields such as, for example, the separation of pigments or lubricants.

Abstract: A centrifuge for separating blood having a camera observing fluid flow, and a controller controlling the flow. The location of an interface is detected by image processing steps, which may comprise the steps of “spoiling” the image, “diffusing” the image, “edge detection”, “edge linking”, “region-based confirmation”, and “interface calculation”. “Spoiling” reduces the number of pixels to be examined preferentially on orthogonal axis oriented with respect to the expected location of the interface or phase boundary. “Diffusing” smoothes out small oscillations in the interface boundary, making to the location of the interface more distinct. “Edge detection” computes the rate of change in pixel intensity. “Edge linking” connects adjacent maxima. “Region-based confirmation” creates a pseudo image of the regions that qualify as distinct. “Final edge calculation” uses the points where the shade changes in the pseudo image, averages the radial displacement of these points for the interface position.

Abstract: A centrifuge may include a bowl operative to rotate with respect to a stationary portion. The centrifuge may include at least one vibration sensor operative to generate vibration data representative of vibrational movement of portions of the centrifuge. The processor may monitor the vibration data as the bowl is being filled with a fluid. The processor may cause a drive device to increase the rotational speed of the bowl responsive to determining from the vibration data that the bowl has becoming substantially filled with a fluid.

Abstract: A centrifuge for separating blood having a camera observing fluid flow, and a controller controlling the flow. The location of an interface is detected by image processing steps, which may comprise the steps of “spoiling” the image, “diffusing” the image, “edge detection”, “edge linking”, “region-based confirmation”, and “interface calculation”. “Spoiling” reduces the number of pixels to be examined preferentially on orthogonal axis oriented with respect to the expected location of the interface or phase boundary. “Diffusing” smoothes out small oscillations in the interface boundary, making the location of the interface more distinct. “Edge detection” computes the rate of change in pixel intensity, or. “Edge linking” connects adjacent maxima. “Region-based confirmation” creates a pseudo image of the regions that qualify as distinct. “Final edge calculation” uses the points where the shade changes in the pseudo image, averages the radial displacement of these points for the interface position.

Abstract: A centrifuge includes a rotator comprising a receiving unit receiving materials and guiding the materials to move upward by centrifugal force to an upper portion of the receiving unit, and a rotator cover covering the upper portion of the receiving unit. The centrifuge also includes a container that is coupled to the rotator cover to be connected to the receiving unit and that receives the materials moved upward along the receiving unit. The centrifuge and a centrifuging method as disclosed herein are used for separating a fluid to which a large centrifugal force is applied and a fluid to which a smaller centrifugal force is applied by adjusting the rotation speed using the principle that centrifugal force during rotation varies according to specific components of a fluid. Thus, using the centrifuge and the centrifugal method, materials can be centrifuged and layers of the materials can be classified and collected accurately and easily.

Abstract: According to an aspect of the invention, a centrifuge includes: a rotor for separating samples; a motor for driving and rotating the rotor; a drive shaft for connecting together the motor and the rotor; a rotation sensor for detecting at least one of the rotation speed of the motor and the rotor; and a displacement sensor for detecting the swinging motion of the rotor or the drive shaft, wherein, after one of speed of the motor and the rotor is accelerated up to previously set rotation speed, when the swinging amount of the rotor or the drive shaft is equal to or more than preset allowable value, the supply of power to the motor is stopped to decelerate the motor, wherein, during the deceleration, signal from the displacement sensor is compared with the preset allowable value, and wherein when the signal from the displacement sensor becomes equal to or less than the preset allowable value, the motor is accelerated.

Abstract: High-throughput centrifugation of batches of samples is achieved by dividing a single centrifugation run of a batch of samples into two or more staggered, discrete spins with fewer samples and in which the availability of centrifuge slots for loading or unloading of samples and the subsequent delivery of experimental results can be enhanced. The methodology is particularly useful in situations where multiple samples need to be processed rapidly, for example, as part of a STAT blood typing program in urgent care facilities prior to blood transfusion.

Abstract: A single use, sterile, self-contained, compact, easy to use centrifugal separation unit provides for quick, reliable platelet concentration from whole blood. Anti-coagulated blood is injected through an elastomeric seal into a separation chamber featuring a tapered barrel and an end cap. At least one port is located in the end cap, at a desired radius from the longitudinal axis. The centrifugal field created by rotation of the chamber stratifies the blood radially, with red blood cells adjacent the wall of the barrel, and plasma found closest to the longitudinal axis. Opening the port causes the pressure of the centrifugal field to eject red blood cells or plasma, thereby increasing the concentration of platelets remaining in the chamber. After ceasing chamber rotation, the concentrated platelets are recovered.

Abstract: According to an aspect of the present invention, there is provided a bio cell cleaning centrifuge including: a motor; a rotor rotated by the motor; holders that are equipped on the rotor and that hold test tubes to be pivotable toward a rotational radial direction of the rotor; a cleaning liquid distributor mounted on the rotor to supply a cleaning liquid to the test tubes; a locking mechanism that locks the holders so that the test tubes are in a vertical state with respect to the rotational radial direction; and a controller that controls the motor and the locking mechanism, wherein the holders are configured to hold the test tubes so that central axes thereof are inclined from a rotational axis direction toward a rotational tangent direction of the rotor.

Abstract: A blood cell collection system having means for detecting when a cell separation chamber has filled with white blood cells, and flushing the cells out of the cell separation chamber into a collect bag. A red-green sensor senses the optical characteristics of fluid leaving the cell separation chamber. A baseline value is calculated. The device calculates a ratio of the intensities of red light and green light and a peak-to-peak ratio of intensities. If either ratio exceeds thresholds computed from the baseline, the device flushes the cells into the collect bag. A camera detects white cells passing into the cell separation chamber and the device calculates the number of cells being collected. If the calculated number of collected cells exceeds a certain limit, the cell separation chamber is flushed. If the device is unable to establish a baseline, the donation can proceed, relying solely on the calculated number of collected cells.

Abstract: A density centrifuge blood processing system comprising a separation chamber rotating about a central rotation axis, the separation chamber being coupled to an elutriation chamber, a first detector for the separation chamber to detect light from an observation region, a computational apparatus distinguishing at least two regions in the observation region and distinguishing incipient spill over of cellular components out of the elutriation chamber as a function of light intensity received from the at least two regions in the separation chamber, and a controller regulating speed of at least one pump or of the separation chamber in response to signals from the computational apparatus to avoid spill over.

Abstract: A centrifugal separator for separating oil mist out of the crankcase vent gas of an internal combustion engine or for separating solid contaminants out of the lubricant oil of an internal combustion engine, wherein the centrifugal separator has a rotationally drivable rotor, a housing which accommodates the rotor and a rotary drive for the rotor, wherein the rotary drive is an electric motor arranged within the housing. The centrifugal separator includes an arrangement for cooling the electric motor.

Abstract: According to an aspect of the present invention, there is provided a centrifuge including: a driving unit which rotates a rotor on which a sample is held; an input/output unit which displays information thereon and receives an input from a user therethrough; and a control unit which controls a rotation speed of the rotor to an input set rotation speed; wherein, when the rotor is rotating, the input/output unit displays first time information corresponding to a time when the rotor has been accelerated to the set rotation speed.

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: The invention refers to a centrifuge for separating whole blood into its blood components and a method for extracting a highly enriched thrombocyte concentrate out of whole blood. For this purpose, the centrifuge comprises a closed loop and/or open-loop control unit as well as a drive unit coupled to the closed loop and/or open-loop control unit, a rotor (12) having at least two container receptacles (14a, 14b; 16a, 16) for removably holding containers (18, 20, 22, 24) being in fluid communication with each other, at least one sensor arranged between the container receptacles (14a, 14b; 16a, 16b) and coupled with the closed loop and/or open-loop control unit for detecting a separation layer. Herein, a motor/gear unit (30a, 30b, 32a, 32b) coupled to the closed loop and/or open-loop control unit is associated with each of the container receptacles (14a, 14b; 16a, 16b).

Abstract: There is described an apparatus for automatically centrifuging test tubes containing biological material comprising a plurality of centrifuges (9, 31) functionally identical to one another yet independent and adapted to centrifuge test tubes (3) offered to an interface (5) for centrifuging test tubes (3) by means of a conveying system included in an automatic conveyor of test tubes (3). Said plurality of centrifuges (9, 31) are fitted on a turntable (10, 32) adapted to offer each centrifuge (9, 31) at a suitable loading/unloading point (100, 200) adjacent to the loading/unloading point (7, 202) of the interface (5).

Abstract: An apparatus for separating blood into blood components using a separation vessel satellite bags mounted on a centrifuge rotor and a balancing assembly for the centrifuge to compensate for changes to the center of gravity.

Abstract: A method and apparatus for separating at least two discrete volumes of a composite liquid into at least a first component and a second component and automatically washing at least one component on a centrifuge rotor. The method comprises transferring a wash solution from a wash solution bag on the rotor into a separation bag; mixing the wash solution and a separated blood component; separating and then transferring the sedimented wash solution into a wash solution discard bag on the rotor. The separated blood component may be washed a plurality of times. A disposable set of tube-connected bags comprises a primary bag, initially containing whole blood, connected to at component bags for receiving plasma or platelets and also connected to a wash solution bag and a wash solution discard bag. The disposable set may further comprise a red blood cell collection bag connected through a filter.

Abstract: The invention provides a sequential centrifuge for centrifuging discrete samples. Methods of more efficiently centrifuging discrete samples sequentially are also provided. The apparatus and methods for sequentially centrifuging discrete samples provide improved operating efficiencies over conventional batch centrifuges. Such advantages include reducing dwell time, increasing system throughput, reducing sample processing system footprint, and improving precision of the analytical process. The sequential centrifuge further provides the capability of handling critical samples without compromising the operating efficiencies achieved in centrifuging discrete samples in a sequential manner.

Abstract: A centrifugal separator includes a rotator part that separates a liquid sample and has a rotor and a drive part. The rotor receives a liquid sample therein and rotates to separate the liquid sample. The drive part drives the rotor to rotate. A controller part controls operations of the rotator part which is mounted in a rotator casing. A controller casing which is separate from the rotator casing mounts the controller part, and the controller part is connected via a drive wire to the drive part in the rotator part. The rotor casing is disposed at a clean room, the controller casing is disposed outside the clean room, and the drive wire passes through a wall of the clean room via an air-tight sealing mechanism.

Abstract: A method for separating at least two discrete volumes of a composite liquid into at least a first component and a second component, comprising centrifuging at least two separation bags containing two discrete volumes of a composite liquid respectively, so as to separate therein the first and second components; transferring at least one fraction of a first separated component from the separation bags into satellite bags connected thereto respectively; detecting a characteristic of a component at determined location in each separation bag; and stopping transferring the at least one fraction of the first component from each separation bag into the first satellite bag connected thereto, upon detection of the characteristic of a component at the determined location.

Abstract: A centrifuge includes a rotator comprising a receiving unit receiving materials and guiding the materials to move upward by centrifugal force to an upper portion of the receiving unit, and a rotator cover covering the upper portion of the receiving unit. The centrifuge also includes a container that is coupled to the rotator cover to be connected to the receiving unit and that receives the materials moved upward along the receiving unit. The centrifuge and a centrifuging method as disclosed herein are used for separating a fluid to which a large centrifugal force is applied and a fluid to which a smaller centrifugal force is applied by adjusting the rotation speed using the principle that centrifugal force during rotation varies according to specific components of a fluid. Thus, using the centrifuge and the centrifugal method, materials can be centrifuged and layers of the materials can be classified and collected accurately and easily.

Abstract: A centrifuge includes a rotational mechanism, a housing, a rotating feed pipe and a basket. The housing includes at least one side and defines an interior volume. The basket is positioned in the interior volume of the housing and is operatively coupled to the rotational mechanism such that rotation of the rotational mechanism is imparted to the basket. The rotating feed pipe extends into the basket through a pipe support positioned over the basket. The rotating feed pipe includes a nozzle operable to direct a flow of liquids, solids or combinations thereof onto a sidewall of the basket. The rotating feed pipe is operable to rotate from a first position towards a second position thereby increasing the distance between the nozzle and the sidewall and varying an angular orientation of the nozzle with respect to a normal to the sidewall.

Abstract: An apparatus for separating at least two discrete volumes of a composite liquid into at least a first component and a second component comprises a centrifuge, with a rotor having a rotation axis comprising at least two separation cells, each for containing a separation bag containing a volume of composite liquid; and first balancing elements for balancing the rotor when the respective weights of the at least two separation bags in the at least two separation cells are different.

Abstract: A continuous flow centrifuge system is provided. The system includes a rotor, a stator, a stator housing, upper and lower bearing plates, upper and lower bearings, first and second snap rings, and lip seal. The upper bearing rotatably secures a shaft of the rotor in the upper bearing plate. The first snap ring secures the upper bearing to the rotor shaft. The lip seal is over the upper bearing and forms a rotatable seal with the upper bearing plate. The second snap ring secures the lip seal to an inner diameter of the upper bearing plate. The upper and lower bearing plates are secured to the stator housing so that the rotor is operatively aligned with the stator.

Abstract: A method for determining ends of runs in a vacuum concentrator includes operating the vacuum concentrator at a pressure set point, periodically inducing a pressure increase in the vacuum concentrator, and determining an end-of-run state from a pressure vs. time relationship. In one embodiment of the present invention, the pressure increase is induced by opening the vacuum concentrator to atmosphere, and the end-of-run state is determined by measuring the time required for the vacuum concentrator to return to the pressure set-point. In another embodiment of the invention, the pressure increase is induced by isolating the vacuum concentrator for a defined period of time, and the end-of-run state is determined by measuring the pressure increase over that period of time. The end-of-run state may be determined by comparing the measured value to a threshold value or by comparing a measured rate of change to a threshold rate of change.

Abstract: A centrifuge including: a rotor rotating with a sample contained therein; a rotating shaft rotatably engaged with the rotor; a motor rotating the rotor and the rotating shaft; a belt transmitting rotational force of the motor to the rotating shaft; a rotor speed detecting unit detecting a rotation speed of the rotor; a motor speed detecting unit detecting a rotation speed of the motor; and a control unit controlling the motor, wherein the control unit calculates a signal for controlling the rotation speed of the rotor on the basis of a signal from the rotor speed detecting unit and controls the motor on the basis of a signal from the motor speed detecting unit and the calculated signal.

Abstract: A system for controlling a centrifuge processing drilling fluid, the system, in certain aspects, including a container of the material, a sensor in the container for producing signals indicative of a fluid density parameter, a centrifuge for removing solids from the material, drive apparatuses for driving a rotatable bowl and a rotatable conveyor of the centrifuge, pump apparatus for pumping material, drive apparatus for the pump apparatus, and a control system for receiving the signals and controlling the centrifuge in response to the density parameter of the drilling fluid.