Abstract: A rotary electrical machine is disclosed in which a cylindrical portion is provided at the outer surface of at least one of a pair of claw-shaped poles, and a cooling blade is positioned and fitted to the cylindrical portion through an opening formed in the cooling blade, concentrically with respect to the cylindrical portion, and fixed to the claw-shaped pole by caulking and welding.

Abstract: An improved end winding support system for "P" bars is disclosed wherein each "P" bar extends axially from one end of a stator slot of the stator core of a dynamoelectric machine which has an integral excitation system. The support system includes means for affixing each of the "P" bars to stator bars at three different locations in the end winding region and especially in such a manner that the inner section close to the stator core includes a slip plane capable of accommodating relatively small differential thermal expansion displacements in the axial direction between the "P" bar and the stator bars.

Abstract: A motor is disclosed that is particularly adapted for energization from a single phase power source and that includes a magnetic core having uniformly sized and spaced slots as well as three different winding phases. In one illustrated form, the motor winding circuit includes sub-circuits in the form of a primary phase winding, an intermediate phase winding, and a capacitor phase winding with the different winding phases positioned on the core so that the space angle between the effective centers of poles (or coil groups) of next adjacently located winding phases is sixty electrical degrees. Also disclosed are procedures by which an initial ratio of effective conductors (or turns) in the capacitor phase to effective conductors in the main phase can be calculated as well as an initial ratio of effective conductors in the intermediate phase to those in the primary phase.

Abstract: To enhance the cooling of an alternator stator, each end of the stator including the end turns of the stator wires is enclosed in a fluid tight assembly containing a matrix of ceramic balls. Since the stator wires are contained in slots in the stator laminations, cooling of the stator wires is facilitated by the cooling fluid flowing parallel to the stator wires in the stator slots from one end assembly to the other end assembly with the ceramic balls assuring uniform coolant flow through the stator slots. An external fluid passage contains a pressure drop orifice resulting in a pressure differential between the end assemblies so that a certain proportion of the cooling fluid will flow through the stator slots.

Abstract: An integral servomechanism is shown that mounts a synchro receiver in the form of a control transformer, a torque motor, an isolation transformer and associated electronic circuitry integrally within a housing wherein the transformer permits the utilization of integrated circuits by providing voltages stepped down from the line voltage while isolating the control transformer from the line voltage.