Abstract: A fan having an air guide and a flywheel is provided, the flywheel being attached to a shaft, for cooling an electric motor. The electric motor has a rotor which can be attached to the shaft. The air guide is arranged in an interchangeable manner at a position between the flywheel and the rotor with respect to the axial direction, and has an air guide opening with an inner cross section for the purpose of forming a blowing channel. An air flow generated by the flywheel can be guided through the blowing channel in the axial direction. The inner cross section is smaller than an outer cross section of the rotor.

Abstract: A power driven component inside a compressor is disposed with a stator and rotors. The stator has an iron core in a circular ring and stator coils in a tightly wound manner. A vertical interval is formed between adjacent stator coils. A cover body is formed on the stator and a shield member that is formed with an upper portion along each stator coil and bending curve portions at two sides of the upper portion. Each bending curve portion is extended toward the interval from the upper portion. A sealed cover portion is connected between the bending curve portions of the upper portion and correspondingly seals each interval to reduce noise of the compressor and oil circulation rate.

Abstract: A brushless motor comprises a stator and a rotor rotatably mounted to the stator. The rotor comprises a shaft, a rotor core fixed onto the shaft and magnets fixed to the rotor core. Two covers are fitted to respective ends of the rotor core, with one of the covers covering one end of the rotor core and at least a part of the radially outer peripheral surface of the rotor core, while the other cover at least covering the other end of the rotor core. Preferably, the entire peripheral surface of the rotor core is substantially covered by the two covers and the gap between the two covers is sealed by adhesive.

Abstract: A rotor for an electric rotating machine includes d-axis through holes located on respective d-axes, hollow shafts formed in both axial sides of a rotating shaft not inserted into a rotor core, presser plates mounted on both axial ends of the rotor core, cooling grooves formed in faces of the presser plates in contact with the rotor core, a plurality of presser plate refrigerant outlet holes in the presser plates, the presser plate refrigerant outlet holes of one of the presser plates having diameters different from diameters of the presser plate refrigerant outlet holes of one of the other presser plates, and a refrigerant channel formed so that a refrigerant supplied into one of the hollow shafts of the rotating shaft flows through the refrigerant channel and further through the hollow shaft wall hole of said one hollow shaft and the radial grooves of the respective presser plates.

Abstract: A rotating electric machine apparatus includes at least one end plate associated with an inner assembly unit that operates to prevent contact between the inner assembly unit and an outer assembly unit. The end plate is peripherally sized to allow the slidable assembly of the inner assembly unit into the outer assembly unit while preventing undesirable contact of the inner assembly unit with the outer assembly unit.

Abstract: A universal automotive alternator which comprises an alternator body, a front plate and an assemblage for attaching the front plate to the alternator body. A back plate is also provided. A structure is for securing the back plate to the alternator body. A facility is for mounting the front plate to a bracket on an engine. In some instances, a component is utilized for mounting the back plate to a bracket on the engine.

Abstract: A can body maker wherein the redraw sleeve is provided with an plurality of air escape openings to provide for the passage of air as the ram moves through the redraw sleeve and wherein the redraw sleeve is attached to the armature of a linear motor which includes a generally cylindrical armature which moves within a surrounding, coaxial stator. The armature includes a plurality of axially spaced apart armature salient pole rings separated by permanent magnet rings. The stator includes a plurality of axially spaced apart stator salient poles which each form a ring radially spaced from and surrounding a portion of the armature. The axial spacing between adjacent stator salient pole rings is one-third greater than the axial spacing between the armature salient pole rings, and an electromagnetic coil extends circumferentially within the stator around the armature between each stator salient pole ring.