The invention relates to a centrifuge (10), having a drive shaft (12), a rotor (40) mounted on the drive shaft (12) so as to be detachable axially in a removal direction (66), a quick-action closure (54) integrated in the rotor (40) and the drive shaft (12), which closure can be used to secure the rotor (40) relative to the drive shaft (12) in a removal direction (66), an abutment (50, 52) in the drive shaft (12) which is engaged by a locking member (46) of the rotor (40), at least one blocking element (76), which—when activated—fixes the rotor (40) relative to the drive shaft (12) and which acts between the locking member (46) of the rotor (40) and the abutment (50, 52) of the drive shaft (12), which quick-action closure (54) includes a force-transmitting element (58, 72). The invention is characterized in that said blocking element (76) is actively connected to an actuating element (100, 100a) via the force-transmitting element (58, 72), that unlocking the quick-action closure (54) is effected by moving the actuating element (100, 100a), the force-transmitting element (58, 72) and the blocking element (76) relative to the locking member (46) in a direction in parallel to the drive shaft (12), and that during unlocking, the actuating element (100, 100a) is moved toward the drive shaft (12), and during locking, the force-transmitting element (58, 72) and the blocking element (76) on the one side and the locking member (46) on the other side are relatively moved toward each other.

A device and a method for reducing wind resistance power of a large geotechnical centrifuge are provided. A semicircular tube cylindrical cooling device is installed between an internal side of a high-speed rotor system and a cylindrical shell. A serpentine top semicircular tube cooling plate is provided right above a hanging basket, and return helium gas inlet holes are opened at a center of the top semicircular tube cooling plate. A helium gas in a helium gas storage tank passes through helium gas outlets on the helium gas inlet pipes, and enters a centrifuge chamber from a bottom sealing plate. The helium gas is used to replace air in the centrifuge chamber to reduce the wind resistance power and corresponding energy consumption. No vacuuming is required, so sealing requirements are lower. Heat dissipation equipment is placed inside the centrifuge chamber, and a helium gas circulation wind duct is added to improve heat exchange coefficient and heat dissipation effect. A special vibration isolation gasket is used, in such a manner that the vibration transmitted to the top bearing system support device by the main shaft is separated from the centrifuge chamber, thereby avoiding resonance of the centrifuge chamber and the main shaft, and ensuring safety of the centrifuge chamber. The present invention is more economical when operating at an acceleration of below 1500 g, and can maintain the temperature below 45° C.

A device and a method for reducing wind resistance power of a large geotechnical centrifuge are provided. A semicircular tube cylindrical cooling device is installed between an internal side of a high-speed rotor system and a cylindrical shell. A serpentine top semicircular tube cooling plate is provided right above a hanging basket, and return helium gas inlet holes are opened at a center of the top semicircular tube cooling plate. A helium gas in a helium gas storage tank passes through helium gas outlets on the helium gas inlet pipes, and enters a centrifuge chamber from a bottom sealing plate. The helium gas is used to replace air in the centrifuge chamber to reduce the wind resistance power and corresponding energy consumption. No vacuuming is required, so sealing requirements are lower. Heat dissipation equipment is placed inside the centrifuge chamber, and a helium gas circulation wind duct is added to improve heat exchange coefficient and heat dissipation effect. A special vibration isolation gasket is used, in such a manner that the vibration transmitted to the top bearing system support device by the main shaft is separated from the centrifuge chamber, thereby avoiding resonance of the centrifuge chamber and the main shaft, and ensuring safety of the centrifuge chamber. The present invention is more economical when operating at an acceleration of below 1500 g, and can maintain the temperature below 45° C.

A centrifuge device, including a base, a rotation platform, and a lock module, is provided. The rotation platform is disposed on the base and adapted to support a rotor of a centrifugal bowl. The rotor is rotatably connected to a stator of the centrifugal bowl. The lock module includes a main body, a lock assembly, and a positioning component. The main body is disposed on the base. The lock assembly is movably connected to the main body and located above the rotation platform. The lock assembly is adapted to be operated to a first state to lock the stator and a second state to be separated from the stator. The positioning component is movably connected to the main body. The positioning component is adapted to move to a first position to position the lock assembly to the first state and a second position to release the lock assembly.

A centrifuge device, including a base, a rotation platform, and a lock module, is provided. The rotation platform is disposed on the base and adapted to support a rotor of a centrifugal bowl. The rotor is rotatably connected to a stator of the centrifugal bowl. The lock module includes a main body, a lock assembly, and a positioning component. The main body is disposed on the base. The lock assembly is movably connected to the main body and located above the rotation platform. The lock assembly is adapted to be operated to a first state to lock the stator and a second state to be separated from the stator. The positioning component is movably connected to the main body. The positioning component is adapted to move to a first position to position the lock assembly to the first state and a second position to release the lock assembly.

Embodiments for a portable and compact centrifugation and thermal management system capable of separating and transporting biological samples while maintaining sample quality for periods of shipment time are described. A compact, automatic centrifuge holding exactly one sample tube is inside an insulating and thermally managed container suitable for standard shipping. A rotor to retain a sample tube is pre-balanced. An electronic controller starts, times and stops centrifugation automatically, responsive to placement of a lid. Thermal management may comprise a phase change material. Embodiments are free of user controls. Embodiments are free of the need for external power or external control.

A centrifugal separator has a stationary casing and a centrifuge rotor, which is provided in the stationary casing and arranged to rotate around an axis of rotation at a rotary speed and which includes a plurality of nozzles for discharge of a product from the centrifuge rotor. The centrifugal separator includes a sensor device which includes a transfer element, which has a first part and a second part and which is configured to be mounted in such a way that the first part is located inside the stationary casing and outside the centrifuge rotor and that the second part is located outside the stationary casing. At least the first part of the transfer element has an elongated shape, a receiving head, which includes the first part of the transfer element. The sensor device further includes a sensor element, which is mounted to the second part of transfer element and which is configured to sense vibrations and/or shock pulses propagating from the receiving head to the sensor element, and an evaluation unit, which communicates with the sensor element for transmitting signals from the sensor element to the evaluation unit. The transfer element is mounted in the stationary casing, directed such that the end face of the receiving head faces the passing jets from the nozzles during rotation of the rotor. A centrifugal separator with such a sensor device is also disclosed.

A centrifugal separator has a stationary casing and a centrifuge rotor, which is provided in the stationary casing and arranged to rotate around an axis of rotation at a rotary speed and which includes a plurality of nozzles for discharge of a product from the centrifuge rotor. The centrifugal separator includes a sensor device which includes a transfer element, which has a first part and a second part and which is configured to be mounted in such a way that the first part is located inside the stationary casing and outside the centrifuge rotor and that the second part is located outside the stationary casing. At least the first part of the transfer element has an elongated shape, a receiving head, which includes the first part of the transfer element. The sensor device further includes a sensor element, which is mounted to the second part of transfer element and which is configured to sense vibrations and/or shock pulses propagating from the receiving head to the sensor element, and an evaluation unit, which communicates with the sensor element for transmitting signals from the sensor element to the evaluation unit. The transfer element is mounted in the stationary casing, directed such that the end face of the receiving head faces the passing jets from the nozzles during rotation of the rotor. A centrifugal separator with such a sensor device is also disclosed.

Embodiments are directed to methods and apparatuses for ensuring that mechanisms that are used to position components of an apheresis machine are not broken as a result of rotation of a centrifuge. In embodiments, a safety mechanism is provided that contacts components of the centrifuge and pushes them into a position to ensure that they do not break when the centrifuge is operated at high rpm.

Embodiments are directed to methods and apparatuses for ensuring that mechanisms that are used to position components of an apheresis machine are not broken as a result of rotation of a centrifuge. In embodiments, a safety mechanism is provided that contacts components of the centrifuge and pushes them into a position to ensure that they do not break when the centrifuge is operated at high rpm.