Westinghouse Electric Corporation

Curtiss-Wright Electro-Mechanical Corporation

Richard A Gronholm

Joel B Hammer

Dennis Pavlik

Richard Witten Armentrout

Christopher Daniel Champion

Ryan Michael Voss

A preload assembly for a thrust bearing. The preload assembly includes a carrier plate having a central annular protrusion, wherein the annular protrusion has an inner diameter and an outer diameter; an inner disc spring; an outer disc spring; and a housing having an annular channel for housing the carrier plate, the inner disc spring, and the outer disc spring.

Disc springs/carrier plate preload assembly

An electrical machine with a radial path air-cooled rotor is provided with prewhirl inlet guide vanes in the coolant inlet duct. The guide vanes are fixed members spaced from each other in an arc around the duct with their radial inward edges advanced in the direction of rotation of the rotor from the radial outer edges and preferably have a smoothly curved airfoil configuration so as to smooth and facilitate air flow through the end turn region and the slot channels.

Dynamoelectric machine with rotor ventilation system including prewhirl

An electrical machine with a radial path air-cooled rotor is provided with a stator end turn shell structure of a smoothly curved configuration that, with a like smoothly curved configuration on the outer wall of the air inlet duct, smooths and facilitates air flow through the exhaust passage and serves as a gas diffuser and noise baffle.

Dynamoelectric machine with rotor ventilation system including exhaust

An electrical machine with a radial path air-cooled rotor is provided with an axial duct inlet fairing. The inlet fairing, in conjunction with the other elements of the structure, reduces the inlet pressure drop by a substantial factor and provides more effective cooling. In addition, the fairing provides a simple means of orificing the rotor axial ducts for thermally balancing the rotor slot conductors.

Dynamoelectric machine with rotor ventilation system including axial

The stator core of a dynamoelectric machine is end-supported by a flexible mounting which includes bore rings encircling the stator core near each axial end and at spaced-apart locations intermediate thereto. Outer and inner place springs axially extend independently along each exterior side of the stator core within the horizontal center plane thereof and below the stator core within the vertical center plane thereof to independently interconnect the bore rings with end boxes situated at either axial end of the stator core. The outer springs are each joined to at least one intermediately disposed bore ring and the inner springs are each joined to at least one end-disposed bore ring. The bore rings have notches, indentations, and/or flat surfaces on their outer periphery for attachment to each of the springs.

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Monroeville, PA, United States of America

Richard A Gronholm