Patent classifications
H02K41/033
LINEAR TRANSPORT SYSTEM WITH MINIMAL TRANSPORT SPACING
A transport system for the transport of containers in a container treatment facility includes a transport track with at least one long stator of a linear motor and multiple transport elements for transporting one or multiple containers. The transport elements are arranged movably on the transport track and formed to be guided along the transport track through magnetic interaction with the at least one long stator. The front and back sides of the transport elements are formed to driven into one another at least in pairs and to have a minimal attainable transport spacing that is smaller than the longitudinal extension of the transport elements.
Launcher for underwater vehicle
The present invention is to provide a launcher for an underwater vehicle by which thrust force of a mover arranged movably in a water conducting tube can efficiently be obtained. The mover forms a plurality of magnetic circuits in which magnetic flux generated by a plurality of permanent magnets flows, and the plurality of magnetic circuits includes a first magnetic circuit in which the magnetic flux flows through one of a pair of circumferential magnets, a second magnetic circuit in which the magnetic flux flows through one of a pair of axial magnets, the second magnetic circuit being formed in parallel to the first magnetic circuit, and a third magnetic circuit in which the magnetic flux flows through a radial magnet, the third magnetic circuit being formed in parallel to the first magnetic circuit and the second magnetic circuit, respectively.
Robot drive with isolated optical encoder
An apparatus including a frame, an optical sensor connected to the frame, and an environment separation barrier. The frame is configured to be attached to a housing of a motor assembly proximate an aperture which extends through the housing. The optical sensor comprises a camera. The environment separation barrier is configured to be connected to the housing at the aperture, where the environment separation barrier is at least partially transparent and located relative to the camera to allow the camera to view an image inside the housing through the environment separation barrier and the aperture.
Method of calibrating a reluctance actuator assembly, reluctance actuator and lithographic apparatus comprising such reluctance actuator
A reluctance actuator assembly comprising a reluctance actuator, a flux sensor to measure a magnetic flux in a gap of the reluctance actuator, and a flux amplifier to drive an actuator coil of the reluctance actuator based on a flux set point and the flux measured by the flux sensor. A method comprising providing to the flux amplifier a flux setpoint, the flux setpoint comprising a time constant component and a sinusoidally varying component at an excitation frequency, measuring a force generated by the reluctance actuator in response to the flux setpoint, and calibrating the reluctance actuator assembly from the measured force.
Mid-bus voltage generation via idle phases in a linear motor track system
Drive coils in sections of a linear motor track that are normally used to electromagnetically propel movers along the track when such movers are nearby can be used to generate a mid-bus voltage for the section when not being used to propel movers. Such drive coils not being used to propel movers are considered idle and available for mid-bus voltage generation. The mid-bus voltage, and a full-bus voltage from which the mid-bus voltage is derived, in turn, can be applied across other drive coils that are near movers with varying polarities and magnitudes to propel movers along the track. Track sensors can be positioned along the track to detect presences or absences of movers with respect to drive coils for determining propulsion of such movers or generation of the mid-bus voltage. Accordingly, power supplies can be used more efficiently by not requiring them to generate mid-bus voltages in addition to full-bus voltages and DC references.
FAULT-TOLERANT PERMANENT-MAGNET VERNIER CYLINDRICAL ELECTRIC MOTOR WITH ELECTROMAGNETIC SUSPENSION AND FAULT-TOLERANT VECTOR CONTROL METHOD FOR SHORT CIRCUIT OF TWO ADJACENT PHASES
Disclosed are fault-tolerant permanent-magnet vernier cylindrical electric motors with an electromagnetic suspension and a fault-tolerant vector control method for a short circuit of two adjacent phases. The fault-tolerant permanent-magnet vernier cylindrical electric motor with an electromagnetic suspension and the fault-tolerant vector control method for a short circuit of two adjacent phases suppress motor thrust ripples caused by a fault of two adjacent phases of an electric motor. The dynamic performance and the steady-state performance thereof are consistent with those under a normal state, and the switching frequency of a voltage source inverter is constant.
DAMPER OF SEMI-ACTIVE ENERGY REGENERATIVE SUSPENSION BASED ON HYBRID EXCITATION AND ITS SIZE DETERMINATION METHOD
Provided is a damper for a semi-active energy regenerative suspension based on hybrid excitation. The damper includes: an upper lifting lug, a dustcover, a lower lifting lug, a hydraulic shock absorber, and a hybrid excitation mechanism, wherein the hydraulic shock absorber is configured to provide a constant viscous damping coefficient, and wherein the hybrid excitation mechanism is configured to generate an adjustable electromagnetic damping force, to transform the vibration energy into electrical energy, and to storage the electrical energy. Also provided is a method for determining the sizes of the damper. The damper which has a simple structure, balances the vibration isolation property and energy regenerative property of the vehicle suspension, and provides a fail-safe function. Furthermore, the method for determining the sizes of the damper is easy and practical to implement, has definite steps and produces drastically optimized results.
Magnetic linear actuator
A magnet linear actuator includes a first element and an armature situated on a support, with the armature being movable along a movement axis between a first position engaged with the first element and the second position spaced away from the first element along the movement axis. The actuator further includes a biasing element that biases the armature in a direction generally toward the second position. The first element or the armature is pivotable with respect to the other between a first orientation and a second orientation. In the first orientation, the first element and the armature have a first magnetic attraction to one another that is sufficient to overcome the bias of the biasing element and to retain the armature in the first position. In the second orientation, the first element and the armature have either a magnetic repulsion to one another or a weaker second magnetic attraction.
A Magnetically Geared Apparatus
A magnetically geared apparatus comprising: a first rotor; and a stator comprising windings and a first plurality of permanent magnets, the first plurality of permanent magnets being located between the windings and the first rotor; the stator comprising un-magnetised magnetisable material between circumferentially juxtaposed permanent magnets of the first plurality of permanent magnets.
PERMANENT MAGNET SYNCHRONOUS MACHINE AND METHOD FOR MANUFACTURING PERMANENT MAGNET SYNCHRONOUS MACHINE STATOR
A permanent magnet synchronous machine includes a stator including a plurality of split core blocks that are continuously arranged in a rotation direction of a rotor. The plurality of split core blocks each includes: a permanent magnet; a pair of teeth arranged on both ends of the permanent magnet so as to sandwich the permanent magnet in the rotation direction; and connection teeth, which are provided on axial end portions of the pair of teeth sandwiching the permanent magnet, and are configured to connect the pair of teeth.