Abstract: The apparatus of the present invention provides a stator for an electric motor. The apparatus includes a plurality of stator components assembled together to form a generally annular stator core. A wire is wrapped around at least a portion of the stator core to form a stator winding. A first generally annular end plate and a second generally annular end plate are mounted to axially opposite sides of the stator core such that the stator core is axially trapped and retained therebetween. A fastener applies a clamping load to the first and second end plates such that the stator core is compressed therebetween. The clamping load from the fastener is applied directly to the first and second end plates which distribute the clamping load to the stator core such that the plurality of components are held together without the fastener directly applying the clamping load to the stator core. A corresponding method for providing a stator is similarly provided.

Abstract: The apparatus of the present invention provides a stator for an electric motor. The apparatus includes a plurality of stator components assembled together to form a generally annular stator core. A wire is wrapped around at least a portion of the stator core to form a stator winding. A first generally annular end plate and a second generally annular end plate are mounted to axially opposite sides of the stator core such that the stator core is axially trapped and retained therebetween. A fastener applies a clamping load to the first and second end plates such that the stator core is compressed therebetween. The clamping load from the fastener is applied directly to the first and second end plates which distribute the clamping load to the stator core such that the plurality of components are held together without the fastener directly applying the clamping load to the stator core. A corresponding method for providing a stator is similarly provided.

Abstract: A stator assembly is provided for an electric motor having a longitudinal axis. The stator assembly includes at least one stator segment having a first end member having a stator tooth and at least one of a stator shoe and a back iron. A second end member is positioned with respect to the first end member and has a stator tooth and at least one of a stator shoe and a back iron. A winding generally circumscribes the stator tooth of the first end member and the stator tooth of the second end member. The first and second end members have a parting line generally perpendicular to the longitudinal axis of the motor. A motor incorporating the stator assembly of the present invention is disclosed. Additionally, a method of forming the stator assembly of the present invention is described.

Abstract: The present invention relates to a cooling system and method for the concentrated motor stator windings of an electric motor. The cooling system and method provides coolant directly onto the motor stator windings and between each adjacent stator winding. The motor housing assists in distributing coolant between each stator winding of the electric motor assembly. Moreover, an insulated sheet and/or tube is insertable between the concentrated motor stator windings. Each is configurable to direct coolant directly on to the stator windings.

Abstract: The apparatus of the present invention provides a stator for an electric motor. The apparatus includes a plurality of stator components assembled together to form a generally annular stator core. A wire is wrapped around at least a portion of the stator core to form a stator winding. A first generally annular end plate and a second generally annular end plate are mounted to axially opposite sides of the stator core such that the stator core is axially trapped and retained therebetween. A fastener applies a clamping load to the first and second end plates such that the stator core is compressed therebetween. The clamping load from the fastener is applied directly to the first and second end plates which distribute the clamping load to the stator core such that the plurality of components are held together without the fastener directly applying the clamping load to the stator core. A corresponding method for providing a stator is similarly provided.

Abstract: A stator assembly is provided for an electric motor having a longitudinal axis. The stator assembly includes at least one stator segment having a first end member having a stator tooth and at least one of a stator shoe and a back iron. A second end member is positioned with respect to the first end member and has a stator tooth and at least one of a stator shoe and a back iron. A winding generally circumscribes the stator tooth of the first end member and the stator tooth of the second end member. The first and second end members have a parting line generally perpendicular to the longitudinal axis of the motor. A motor incorporating the stator assembly of the present invention is disclosed. Additionally, a method of forming the stator assembly of the present invention is described.

Abstract: The apparatus of the present invention provides a stator for an electric motor. The apparatus includes a plurality of stator components assembled together to form a generally annular stator core. A wire is wrapped around at least a portion of the stator core to form a stator winding. A first generally annular end plate and a second generally annular end plate are mounted to axially opposite sides of the stator core such that the stator core is axially trapped and retained therebetween. A fastener applies a clamping load to the first and second end plates such that the stator core is compressed therebetween. The clamping load from the fastener is applied directly to the first and second end plates which distribute the clamping load to the stator core such that the plurality of components are held together without the fastener directly applying the clamping load to the stator core. A corresponding method for providing a stator is similarly provided.

Abstract: The present invention relates to a cooling system and method for the concentrated motor stator windings of an electric motor. The cooling system and method provides coolant directly onto the motor stator windings and between each adjacent stator winding. The motor housing assists in distributing coolant between each stator winding of the electric motor assembly. Moreover, an insulated sheet and/or tube is insertable between the concentrated motor stator windings. Each is configurable to direct coolant directly on to the stator windings.

Abstract: A countershaft transmission has an input shaft and a coaxial output shaft which are disposed in parallel with a pair of countershafts. The countershafts position and support a floating bearing support which is positioned to support ends of the input and output shafts. The countershafts each have a selectively engageable clutch disposed thereon which selectively control the establishment of drive ratios between the input shaft and the respective countershafts. A plurality of forward and reverse ratios are selectively established, between the input and output shafts through the countershafts, by selectively engaging a plurality of synchronizers. The synchronizers cooperate with a plurality of ratio gears on the countershafts and output shaft to establish the ratios. The ratio gears that establish the lowest forward ratios are fully disengageable from their respective countershafts.

Abstract: A countershaft transmission has an input shaft and a coaxial output shaft which are disposed in parallel with a pair of countershafts. The countershafts position and support a floating bearing support which is positioned to support ends of the input and output shafts. The countershafts each have a selectively engageable clutch disposed thereon which selectively control the establishment of drive ratios between the input shaft and the respective countershafts. A plurality of forward and reverse ratios are selectively established, between the input and output shafts through the countershafts, by selectively engaging a plurality of synchronizers. The synchronizers cooperate with a plurality of ratio gears on the countershafts and output shaft to establish the ratios. The ratio gears that establish the lowest forward ratios are fully disengageable from their respective countershafts.

Abstract: A countershaft transmission has an input shaft and a coaxial output shaft which are disposed in parallel with a pair of countershafts. The countershafts position and support a floating bearing support which is positioned to support ends of the input and output shafts. The countershafts each have a selectively engageable clutch disposed thereon which selectively control the establishment of drive ratios between the input shaft and the respective countershafts. A plurality of forward and reverse ratios are selectively established, between the input and output shafts through the countershafts, by selectively engaging a plurality of synchronizers. The synchronizers cooperate with a plurality of ratio gears on the countershafts and output shaft to establish the ratios. The ratio gears that establish the lowest forward ratios are fully disengageable from their respective countershafts.

Abstract: A countershaft transmission has an input shaft and a coaxial output shaft which are disposed in parallel with a pair of countershafts. The countershafts position and support a floating bearing support which is positioned to support ends of the input and output shafts. The countershafts each have a selectively engageable clutch disposed thereon which selectively control the establishment of drive ratios between the input shaft and the respective countershafts. A plurality of forward and reverse ratios are selectively established, between the input and output shafts through the countershafts, by selectively engaging a plurality of synchronizers. The synchronizers cooperate with a plurality of ratio gears on the countershafts and output shaft to establish the ratios. The ratio gears that establish the lowest forward ratios are fully disengageable from their respective countershafts.

Abstract: A planet gear set and method of assembling the carrier on the sun and ring gear particularly suited for automation of the carrier assembly operation. The sun gear of the planetary set has a staging annulus formed on one end thereof defined between the addendum and dedendum circles of the sun gear teeth. The sun gear also has a frustoconical concentricity chamfer formed on the same end with one edge contiguous with dedendum circle edge of the staging annulus. The carrier, with the planet gears thereon, is aligned on the axis of rotation of the sun gear and advanced toward the same. If the sun gear is eccentric relative to its axis of rotation, the planet gears engage the concentricity chamfer and cam the sun gear to an aligned position which is achieved when the carrier achieves a staged position relative to the sun gear. In the staged position, the addendum circles of the planet gears are tangent to the dedendum circle edge of the staging annulus.

Abstract: Method and apparatus for assembling a spline-type connection wherein a plurality of angularly spaced spline teeth on a first member project radially from a circular edge thereof and are disposed in an imaginary annulus concentric with the circular edge, a staging annulus corresponding in size to the imaginary annulus is formed on a second member at one end of and perpendicular to a cylindrical wall on the second member adapted to slidably receive the circular edge of the first member, a frusto-conical centering guide shoulder is formed on the second member around the staging annulus and extends longitudinally outboard from the staging annulus, and a plurality of spline grooves are formed in the cylindrical wall and intersect the staging annulus at a corresponding plurality of notches angularly spaced to register with the spline teeth.