Abstract:
A multi-degree-of-freedom electromagnetic machine includes a first structure, a second structure, and a control. The first structure is configured to rotate about a spin axis and about a tilt axis that is perpendicular to the spin axis, and includes a first spin conductor, a second spin conductor, and a tilt conductor, which together form a general shape of a surface. The second structure is disposed adjacent to the first structure and includes a plurality of magnets. The control is configured to controllably supply alternating current (AC) to the first and second spin conductors and direct current (DC) to the tilt conductor, wherein the first structure continuously rotates about the spin axis in response to the AC being supplied to the first and second spin conductors, and rotates about the tilt axis to a tilt position in response to the DC being supplied to the tilt conductor.
Abstract:
The invention proposes a linear actuator for activating a vehicle brake, notably for a disc-brake calliper. This actuator comprises a brake piston which is translationally moved by a screw-nut mechanism driven by a reduction gearbox of an electric motor. This actuator comprises an upstream reduction stage using an epicyclic geartrain (PR1) with fixed annulus (R1, 121), driven at input by its sun gear (S1). It drives the input of an epicyclic reduction gearbox referred to as "differential" comprising two epicylic geartrains sharing a common kinematic element. In a first family, these two geartrains comprise a planet carrier (140) in common, that meshes with a fixed annulus (R2) and a mobile annulus (R3), which bears an external screw thread which moves the piston. In the second family, the two geartrains are in series and drive an external screw thread which collaborates with the same toothset (201) as their planet wheels. This toothset is borne by the inside of the piston (16b) and has two crossed patterns performing the two functions. The invention also proposes a method for manufacturing such a piston, by stamping and then rolling a plate.
Abstract:
The invention relates to a transport system (100) and to a system for moving permanent-magnet-excited transport bodies (21) by means of an inductively excited magnetic field. The system (90) comprises: induction coils (4), a movably supported first reluctance element (13), and an actuator (14), wherein the induction coils (4) are designed for a current to flow through the induction coils in order to drive the transport bodies (21) in a plane without contact, and the actuator (14) is designed to bring the first reluctance element (13) from a first position into a second position, wherein the permanent magnetic field (8, 9) of a transport body (21) located over the first reluctance element (13) experiences a lower magnetic resistance in a magnetic circuit through the first reluctance element (13) in the second position than in the first position.
Abstract:
Disclosed is a device for closing a receptacle, comprising at least one closing station (50) for closing at least one receptacle (36), at least one receptacle holder (38) for conveying the receptacle (36) relative to the closing station (50), at least one driving surface (13), and at least one mover (20) that can be coupled to the driving surface (13) especially by magnetic forces; the mover (20) is arranged so as to be slidable and/or rotatable in at least two degrees of freedom on the driving surface (13), and the receptacle holder (38) is disposed on the mover (20).
Abstract:
An arrangement for transferring and/or grouping products (32) is proposed, comprising at least one mover (20) which has at least one permanent magnet (19) which is connected to the mover (20), wherein the permanent magnet (19) interacts with at least one coil plane (18) of a drive surface (13) for the in particular contactless driving of the mover (20), wherein the mover (20) is arranged displaceably and/or rotatably in at least two degrees of freedom on the drive surface (13), furthermore comprising at least one conveying system (34, 38) which conveys products (32), characterized in that the mover (20) picks up or deposits at least one product (32) by means of a movement of the mover (20) with at least one vertical component.
Abstract:
A power generator 100 includes a power generating unit 10 and a supporting member 20 for supporting the power generating unit 10. The power generatimg unit 10 constitutes a two-degree-freedom vibration system including a first vibration system having a coil assembly 40 and a first spring portion 64 for coupling the coil assembly 40 with a housing 20 and a second vibration system having a magnet assembly 30 and a second spring portion 65 for coupling the magnet assembly 30 with the coil assembly 40. The power generating unit 10 is configured so that each of a first natural frequency É 1 of the first vibration system and a second natural frequency É 2 of the second vibration system is in the range of 14 to 42 Hz.
Abstract:
A stage device is equipped with a surface plate (30) and a wafer stage (WST) which is mounted on surface plate (30) and has an exhausting port (73) formed on a surface facing the surface plate. In a state where wafer stage (WST) lands on the surface plate, an air chamber (72) is formed in between surface plate (30) and wafer stage (WST). Pressurized gas blows out from exhausting port (73) provided at stage main section (22) into air chamber (72), and self-weight of wafer stage (WST) is cancelled by an inner pressure of air chamber (72). This allows to the wafer stage which has stopped on the surface plate to be moved manually.
Abstract:
The present invention relates to an actuator system with a magnetic lead screw, comprises a magnetic rotor and a translator cylinder, the translator cylinder comprises a magnetic stator, the translator cylinder has a closed first end and a second end confined by a lid, the lid having a shaft opening for a shaft coupled to the magnetic rotor, wherein the magnetic rotor, when inserted in the translator cylinder, is arranged to translate a linear movement of the translator cylinder into a rotational movement of the magnetic rotor by using magnetic flux interacting between the magnetic stator and the magnetic rotor, said rotational movements is being transferred through a shaft, the lid with a shaft opening arranged for receiving the shaft, wherein the shaft is arranged to make both the linear and the rotational movement in the shaft opening, the lid being arranged for confining the second end of the translator cylinder, the translator cylinder confined by the lid forms, when divided by the magnetic rotor, a first chamber with a first volume and a second chamber with a second volume, wherein the first volume and the second volume changes as a function of the linear movement. The invention also relates to a method of operating an actuator system with a magnetic lead screw.