Abstract: In one aspect, a protective headwear is provided and includes a headgear, an outer shell, a duct and a manifold. The headgear is configured to engage a wearer's head and at least partially support the protective headwear on a wearer's head. The headgear includes a front, a rear opposite the front, a right side, and a left side opposite the right side. The outer shell is coupled to the headgear at a coupling location and includes a shield positioned to the front of the headgear. The duct is at least partially coupled to and at least partially positioned in an interior of the outer shell. The duct is located below the coupling location.

Abstract: A rotor pole crossover connection joint for use in a rotating electrical machine is disclosed. The connection joint integrally couples a bottom rotor coil strap to a rotor pole crossover connector with a single piece connector that reduces, distributes or otherwise tolerates stress concentrations in the connector. A corresponding method of forming a rotor pole crossover connection and a rotor assembly including a rotor pole crossover connection joint are also disclosed.

Abstract: A rotor pole crossover connection joint for use in a rotating electrical machine is disclosed. The connection joint integrally couples a bottom rotor coil strap to a rotor pole crossover connector with a single piece connector that reduces, distributes or otherwise tolerates stress concentrations in the connector.

Abstract: An electric machine includes a shaft and a rotor carried by the shaft and having a rotor body, a plurality of rotor windings carried by the rotor body, and a retaining ring surrounding the rotor windings adjacent an end of the rotor body. An electrically conductive stud extends radially outwardly from the shaft adjacent the end of the rotor body. An electrically conductive member includes a first end section coupled to the electrically conductive stud and having a loop shape, a second end section coupled to a corresponding one of the rotor windings, and an intermediate section between the first and second end sections. An insulation assembly is between the shaft and the retaining ring and surrounding the intermediate section to define at least one gap with adjacent portions thereof.

Abstract: A rotor pole crossover connection joint for use in a rotating electrical machine is disclosed. The connection joint integrally couples a bottom rotor coil strap to a rotor pole crossover connector with a single piece connector that reduces, distributes or otherwise tolerates stress concentrations in the connector. A corresponding method of forming a rotor pole crossover connection and a rotor assembly including a rotor pole crossover connection joint are also disclosed.

Abstract: An electric machine includes a shaft and a rotor carried by the shaft and having a rotor body, a plurality of rotor windings carried by the rotor body, and a retaining ring surrounding the rotor windings adjacent an end of the rotor body. An electrically conductive stud extends radially outwardly from the shaft adjacent the end of the rotor body. An electrically conductive member includes a first end section coupled to the electrically conductive stud and having a loop shape, a second end section coupled to a corresponding one of the rotor windings, and an intermediate section between the first and second end sections. An insulation assembly is between the shaft and the retaining ring and surrounding the intermediate section to define at least one gap with adjacent portions thereof.

Abstract: A rotor pole crossover connection joint for use in a rotating electrical machine is disclosed. The connection joint integrally couples a bottom rotor coil strap to a rotor pole crossover connector with a single piece connector that reduces, distributes or otherwise tolerates stress concentrations in the connector.

Abstract: The present invention facilitates keeping the slot cells 8 of a generator rotor from migrating during operation of the rotor. The present invention utilizes a slot cell catch 10 that hold slot cells 8, both U-shaped and L-shaped, in position within a rotor body slot 6. The catch 10 limits movement to a pre-determined amount, usually only a fraction of an inch.

Abstract: A joined assembly and kit for a rotor of a dynamoelectric machine are provided. The joined assembly is part of a conductive path generally extending from a radially inward section of the rotor to a radially outward section of the rotor. The conductive path includes a flexible connecting member from the radially inward section of the rotor to the joined assembly. The joined assembly includes a stacked winding energizable in response to excitation current carried by the conductive path to a top of the stacked winding located at the radially outward section of the rotor. The joined assembly further includes a connector with a first leg providing an electrically insulated mechanical point of contact relative to a bottom of the stacked winding.

Abstract: A joined assembly and kit for a rotor of a dynamoelectric machine are provided. The joined assembly is part of a conductive path generally extending from a radially inward section of the rotor to a radially outward section of the rotor. The conductive path includes a flexible connecting member from the radially inward section of the rotor to the joined assembly. The joined assembly includes a stacked winding energizable in response to excitation current carried by the conductive path to a top of the stacked winding located at the radially outward section of the rotor. The joined assembly further includes a connector with a first leg providing an electrically insulated mechanical point of contact relative to a bottom of the stacked winding.

Abstract: A brake and pulley assembly for retrofitting onto the hub of a belt driven, swingarm mounted rear wheel of a motorcycle. The hub has a multiplicity of bolt holes therein forming a bolt hole pattern. The hub is mounted to an axle. The brake and pulley assembly consists of a pulley and rotor unit. The pulley is bolted to the hub and the rotor is bolted or otherwise attached to the pulley. A caliper assembly is attached to the swingarm of the motorcycle and provides for frictionally engaging the rotor to slow the motorcycle down.

Abstract: A method and associated apparatus (10) are provided for tightening slot wedges (32, 36) of a generator rotor. The method preferably includes the steps of positioning an electrically-conductive slot tightening member (25) within a recess (20) formed in at least one slot filler member (12, 16) positioned within a rotor slot (18) and positioning at least two end portions of electrically-conductive slot wedges (32, 36) to overlie the recess (20) and abuttingly contact at least portions of the slot tightening member (25) so that an electrically-conductive path is provided from one of the at least two end portions of the slot wedges (32, 36), through the slot tightening member (25), and to another one of the at least two end portions of the slot wedges (32, 36). The apparatus (10) preferably includes at least one slot filler member (12) for positioning within a rotor slot (18). The at least one slot filler member (12) has a recess (20) formed therein.

Abstract: A system for supporting a retaining ring on an end of body portion of a rotor in an electrodynamic system includes an end wedge which is adapted to be in contact with a retaining ring, a damper bar having a first surface which abuts the end wedge member and a second, oppositely facing surface; and a filler block positioned between the second surface of the damper bar and a field winding portion of a rotor. The filler block has a tapered surface which defines a stress-reducing gap between the field winding portion and the retaining ring, so as to minimize stress in the slot cell and field windings during high-speed rotation of the rotor.