Abstract: An alignment fixture includes a rotor fixture, a stator fixture and a sensor system which measures a rotational displacement therebetween. The fixture precisely measures rotation of a generator stator assembly away from a NULL position referenced by a unique reference spline on the rotor shaft. By providing an adjustable location of the stator assembly within the housing, the magnetic axes within each generator shall be aligned to a predetermined and controlled tolerance between the generator interface mounting pin and the reference spline on the rotor shaft. Once magnetically aligned, each generator is essentially a line replaceable unit which may be readily mounted to any input of a multi-generator gearbox assembly with the assurance that the magnetic alignment will be within a predetermined tolerance.

Abstract: Difficulties in cooling the rotor (28) of a dynamoelectric machine carrying a rotating rectifier (54) are avoided by providing a coolant inlet 68 extending to the interior of a rectifier housing 50 through which the coolant may flow to emerge from a port 66 in the housing 50 and flow via an annulus 52 within the rotor shaft 30 to conduits 98 to cool the rotor windings 48. The coolant is returned to the interior of the rotor shaft 30 and ultimately to a coolant outlet 84.

Abstract: To provide for electrical connection of electrical components through a rotating shaft in a manner facilitating assembly and disassembly of the connection for replacement of the components, a connector assembly is provided. The connector assembly includes an insert disposed within an insulator both of which are fixed within the rotating shaft in proximity to an opening therein, electrical terminals or contacts associated with each of the electrical components in spaced relation thereto, and a conductive bushing extending through the opening in the rotating shaft in electrically isolated relation thereto. Additionally, the connector assembly includes an externally threaded fastener for releaseably securing the electrical terminals or contacts and the conductive bushing to the insert in the insulator to electrically interconnect the electrical components in a manner accessible externally of the rotating shaft.

Abstract: Windage losses in a liquid cooled dynamoelectric machine having a stator 10 including an armature 14, a rotor 20 journalled for rotation about an axis within the armature 14, a pump 50, a sump 56 and a liquid flow path 24 within the rotor 20 are avoided through the use of a first transfer tube 58 connecting the pump 50 and one end 68 of the flow path along with a second transfer tube 92 coaxially surrounding the first transfer tube 58 and connected to the other flow path end 91 and to the sump 56.

Abstract: Difficulties in cooling the rotor (28) of a dynamoelectric machine carrying a rotating rectifier (54) are avoided by providing a coolant inlet 68 extending to the interior of a rectifier housing 50 through which the coolant may flow to emerge from a port 66 in the housing 50 and flow via an annulus 52 within the rotor shaft 30 to conduits 98 to cool the rotor windings 48. The coolant is returned to the interior of the rotor shaft 30 and ultimately to a coolant outlet 84.