Abstract: The present invention relates to a pre-collapsed capacitive micro-machined transducer cell (10) comprising a substrate (12) comprising a first electrode (16), a membrane (14) comprising a second electrode (18), wherein the cell has an outer region (22) where the membrane (14) is mounted to the substrate (12) and an inner region (20) inside or surrounded by the outer region (22), wherein the membrane (14) is collapsed to the substrate (12) in a first collapsed annular-shaped region (24) located within the inner region (20).

Abstract: An electric machine includes a motor having a motor chassis having a first and second end, a stator assembly, and a rotor assembly. The electric machine includes a motor control assembly having a circuit board. The motor control assembly is attached to the stator assembly of the motor. A first end shield is attached to the first end of the motor chassis. The first end shield includes a first opening that is configured to enable a cooling air stream to pass therethrough to cool the motor and the motor control assembly.

Abstract: In one embodiment, a device is provided that includes: a plurality of actuators arranged into a plurality of rows and a plurality of columns; a plurality of row conductors corresponding to the plurality of rows; a plurality of column conductors corresponding to the plurality of columns; and a controller configured to select at least one of the actuators a row by raising a voltage on the corresponding row conductor to couple each selected actuator to its corresponding column conductor.

Abstract: An electric machine having a stator and a rotor arranged on an axis of rotation and a first fan, which extends in the radial direction on one section of the axis of rotation and delivers a coolant flow into the electric machine during operation. The electric machine further includes a fan directing element, which interacts with the first fan and deflects at least a proportion of the coolant flow. Variable and demand-based cooling of the electric machine can be achieved by the fan directing element, which can in particular be adjustable.

Abstract: Particles emitted by radio-isotopic by-products of nuclear fission are used as a power source at the cathode of a magnetron system. Particles include high energy electrons having a large associated EMF. In the system a radial electrical vector E, between the cathode and anode, interacts with an axial magnetic vector B vector to produce an E×B force that rotates the particles about the system axis. These emissions are within a set range of velocities. The angular velocity and geometry of a rotating field, known as a space charge wheel (SCW), may be modulated by an external RF inputs to cavities of an anode block and the use of concentric biasing grids between the cathode and anode block. The SCW induces LC values into cavities of the anode, exciting them and producing electrons resonance which may be used to generate power.

Abstract: A motor actuator includes a housing, and a plurality of output mechanisms accommodated in the housing. The housing includes a fastening unit that fastens a first case and a second case. Each of the plurality of output mechanisms includes a motor and a plurality of deceleration gears. The motor is supported by the housing. A final state deceleration gear is rotatably supported by the housing. The fastening unit is arranged in a first fastening unit formation range. The first fastening unit formation range is a range formed by connecting contours of a plurality of motors and contours of a plurality of final state deceleration gears, and is a range that surrounds the plurality of motors and the plurality of final stage deceleration gears.

Abstract: Methods for increasing the power output from a heat engine based on temporary electrical and magnetic remanence is achieved by a means of cancelling the power limitation caused by re-magnetization fields and methods for varying the turns-ratio of the output coils as the flux decays.

Abstract: An electric motor includes a rotor shaft, and the rotor shaft has a shaft-core oil passage and radial oil passages. The shaft-core oil passage includes an inner wall facing radially inward. The radial oil passages are provided toward a radial outer side of the rotor shaft from the shaft-core oil passage. The radial oil passages penetrate through the rotor shaft. The radial oil passages have corresponding one of first connection openings connected to the shaft-core oil passage, so that oil that is not discharged from the first connection openings to the radial oil passage is supplied to other supply destinations. A distance of the first connection openings from the shaft core is shorter than a distance, from the shaft core, of that part of the inner wall which is not provided with the first connection openings.

Abstract: An electric machine comprise a first carrier having an array of electromagnetic elements and a second carrier having electromagnetic elements defining magnetic poles, the second carrier being arranged to move relative to the first carrier. An airgap is provided between the first carrier and the second carrier. The electromagnetic elements of the first carrier include posts, with slots between the posts, one or more electric conductors in each slot, the posts of the first carrier having a post height in mm. The first carrier and the second carrier together define a size of the electric machine. The magnetic poles having a pole pitch in mm. The size of the motor, pole pitch and post height are selected to fall within a region in a space defined by size, pole pitch and post height that provides a benefit in terms of force or torque per weight per excitation level.

Abstract: A linear actuator is configured to provide the moving force for adjustable furniture, such as beds, chairs, or tables. The linear actuator includes a drive assembly, rigid arm, and linkage assembly. The rigid arm includes a pusher block with one or more attachment projections where the linkage assembly is attached.

Abstract: An assembly for use in a rotor of a turbine generator is provided that includes at least one creepage disposed on an upper load surface of copper windings. At least one slot spring is disposed on the creepage, and at least one amortisseur is disposed on the slot spring. A plurality of hollow locking members are disposed within apertures of the creepage, the slot spring, and the amortisseur. At least one slot wedge is disposed on the slot spring and the plurality of hollow locking members. At least one field retaining ring is disposed against one of the end portions of the rotor body and against the slot wedge.

Abstract: An insulation system includes a number of mica hard-boards joinable to form a free-standing slot-liner for insulating a conductor when placed therein and accommodating an expansion of the conductor. In another embodiment, an electromagnetic pump includes a stator of the electromagnetic pump including a number of laminations, a slot-liner positioned within a gap formed by the laminations, an annular wound copper conductor coil positioned within the slot-liner. The slot-liner includes a number of mica hard-boards joined to form an annular volume for insulating the conductor coil and accommodating an expansion of the conductor coil.

Abstract: A brushless motor 5 of the present invention comprises: a rotor magnet 13 having a magnetized circumferential surface 13a comprising an upper circumferential surface 13a1 magnetized with a plurality of magnetic poles and a lower circumferential surface 13a2 magnetized with a plurality of magnetic poles; and a stator 30 having a stator stack 31 at least partially facing the lower circumferential surface 13a2, wherein the upper circumferential surface 13a1 of the rotor magnet 13 has a surface magnetic flux density of substantially the same level from a center of a magnetic pole until a vicinity of an adjacent magnetic pole, and the lower circumferential surface 13a2 of the rotor magnet 13 has a surface magnetic flux density decreasing from a center of a magnetic pole toward an adjacent magnetic pole.

Abstract: A motor, may include a rotor having a shaft which has its center on a center axis extending in one direction; a stator which surrounds the rotor in the axial circumference, and includes a plurality of coils; and bus bars connecting coil ends extending from the coils. The bus bars may include a plate shape member bent in a thickness direction, a width direction of the bus bars being identical to an axial direction of the motor. Each of the bus bars may include a main body portion, and a coil end connection portion which extends from the main body portion and grips one of the coil ends at an opening that is open toward one direction within a plane perpendicular to the axial direction.

Abstract: Cylindrical outer and inner rotors coaxially supported so as to be rotatable, and a cylindrical stator interposed between the rotors are provided, and rotational torque is transmitted between the outer rotor and the inner rotor by interaction between: a plurality of magnets uniformly arranged on the inner circumference of the outer rotor; a plurality of magnets uniformly arranged on the outer circumference of the inner rotor; and a plurality of magnetic bodies juxtaposed at equal intervals in the circumferential direction of the stator. Rod-shaped magnetic bodies extending in the axial direction of the stator are used, and each magnetic body is placed in skew arrangement with a deviation amount in the circumferential direction corresponding to 1/12 to ¼ of the juxtaposition pitch in the circumferential direction between one axial end and the other axial end.

Abstract: A display device has a scale in the shape of a circular arc. On an axis driving an indicator axis, a rotatably mounted gear wheel is arranged in a rotatably fixed manner, in the teeth of which the toothing of a wobble gear ring partially engages. The wobble gear ring is mounted about the axis of the rotatably mounted gear wheel such that the wobble gear ring can wobble, is acted upon by spring forces distributed around the periphery of the wobble gear ring in the direction of engagement of the toothing of the wobble gear ring in the teeth of the rotatably mounted gear wheel, and is fixedly connected to a ferromagnetic ring extending in the direction of rotation of the wobble gear ring. At least two pole shoes project through independently energizable coils to the outer circumferential surface of the ferromagnetic ring.

Abstract: The present invention relates to electric appliances for personal care, in particular electric shavers, comprising a magnetic linear drive unit having first and second drive components supported for linear displacement relative to each other and adapted to magnetically interact with each other, wherein a drive support is provided for supporting the drive unit onto a mounting structure. The drive support supporting the drive unit onto a mounting structure of the installation environment is adapted to provide for at least one axis of rotation for at least one of the drive components of the drive unit allowing said at least one drive component to rotate relative to the mounting structure.

Abstract: A motor includes a stator that generates a rotating magnetic field; a rotor supported rotatably by a shaft within the stator; an outermost peripheral permanent magnet that is a permanent magnet embedded inside the rotor in an arced shape forming a convexity at the inner surface of the rotor; and an inner permanent magnet that is a permanent magnet embedded at the inside of the rotor in parallel to the outermost peripheral permanent magnet. The arc angle of the permanent magnets is greater than 90°, the thickness at the center of both inner permanent magnets is thinner than the thickness at the center of the outermost peripheral permanent magnet, and the thickness at the ends of both inner permanent magnets is thicker than the thickness at the ends of the outermost peripheral permanent magnet.

Abstract: A drive device includes a motor, having a stator on which a winding wire group is wound, a rotor disposed relative to the stator, and a shaft rotating in one body with the rotor are included, a controller disposed on one axial end of the motor and having a substrate on which electronic components for controlling a power supply to the winding wire group are implemented, a frame member facing the substrate and having a substrate supporter that supports the substrate in a contacting manner, a boss protruding from the frame member toward the substrate, and an engager fixedly disposed on the substrate and having elastically-deformable multiple claws that engagingly hold the boss in a binding manner. This arrangement reduces the volume of the drive device.

Abstract: The present invention relates to alternative methods of joining a solid part (1) and a polymer (2). The methods comprise attaching a primer layer (4) with a predetermined surface chemistry, density and thickness covalently to at least a part of a surface (3) of the solid part (1). Some embodiments of the invention further comprise polymerizing second molecules onto the primer layer (4) so that the surface (3) is at least partly covered with surface immobilized polymer brushes (8). The surface (3) of the solid part (1) is brought into contact with the polymer (2) and a predetermined temperature profile is applied resulting in covalent bonds (6) being established between the polymer (2) and the primer (4), and/or polymer brushes (8) melting or softening and entangling with melted or softened polymer (2) so that the solid part (1) and the polymer (2) remain joined after cooling.