The present invention relates to a stator for a linear motor by staggered core lamination which can facilitate insulation and assembly of a stator core, can freely set an interval of an opening of the stator core, and can reduce loss of the motor by decreasing a magnetic flux density of the core. The stator for the linear motor includes a stator coil formed by winding and insulating a coil at a cylindrical shape, a vertical unit consisting of a thin plate material, and having a predetermined wid...

An axial flux machine comprises: a soft magnetic composite stator extension positioned in parallel with a rotor disk and having slots; soft magnetic composite pole pieces attached to the stator extension and facing a permanent magnet on the rotor disk, each comprising a protrusion situated within a respective one of the slots, each protrusion shaped so as to facilitate orientation of the respective pole piece with respect to the stator extension; electrical coils, each wrapped around a respectiv...

This case is about the rotating electric machinery in which between the rotating shaft of the electric machinery and the electric machinery rotor or between the electric machinery rotor and the stator, or between the rotating shaft of the electric machinery and the stator, there is installed centrifugal force producing axial pulling structure and there is installed axial pre-stressed spring, and to the rotating shaft of the electric machinery there can be optionally installed axial position limi...

A cup-shaped yoke is axially movably provided in a cylindrical frame, and a cylindrical permanent magnet is securely provided in the yoke. A coil bobbin is cantilevered in the frame and inserted in a space between the yoke and the permanent magnet, and a driving coil is mounted on the coil bobbin. The yoke is held by a pair of coil springs for resiliently holding the yoke in the frame.

A coolant inlet and a coolant outlet are opened on an inner surface enclosing an inner space of a rotation object. The coolant inlet and the coolant outlet are located on a rotation axis and face each other. A main-stream which flows straightly along the rotation axis from the coolant inlet to the coolant outlet is generated in a central space of the inner space. Therefore, a resistance about the coolant stream is small. In addition, a sub-stream which circulates in a radial direction is generat...

An electric motor utilizing permanent magnets, wherein the permanent magnets produce a flux circuit in a first direction and shunt elements whereby the magnets and shunt elements rotate relative to each other wherein the shunt elements sequentially interrupt the magnet flux circuit to minimize generated flux circuits tending to rotate the motor in a direction opposite to the primary direction of motor rotation.

A superconducting rotor assembly includes an axial shaft and a winding support structure. A torque tube is connected to this winding support structure. An interconnection assembly mechanically couples the torque tube to the axial shaft. This interconnection assembly is configured to convert a torsional torque load experienced by the torque tube to a tangential torque load which is provided to the axial shaft.

The invention pertains to a motor housing (1) as well as a pole cover (2), especially for window lift or sunroof motors, having at least one pole cover (2) and a housing (3) closing off the pole cover, which are fastened together using fasteners (4), whereby the pole cover (2) has multiple receptacles (5) for the fasteners (4), and the housing (3) closing off the pole cover has multiple counterreceptacles (6) for the fasteners (4) and for differing housings (3) which close off the pole cover dif...

A case retained external capacitor that can be installed onto the motor sleeve of an electric motor. The case retained capacitor includes a capacitor case having a mounting clip formed along its inner wall. The mounting clip is sized to be retained within an attachment slot stamped from the motor sleeve. The capacitor case receives a capacitor having lead wires that extend out of the capacitor case and into the interior defined by the motor sleeve. During construction of a motor utilizing the ca...

A solid core angular position resolver including stator coils and a coil-less rotor, the improvement wherein the rotor comprises a core having a substantially circular cylindrical configuration having on its surface a notch extending substantially helically over part of the surface of the cylindrical configuration.