Rotary electric machine with centrifugal filter
First Claim
1. In a rotary electric machine, the combination of:
- a stator;
a rotor journalled for rotation relative to the stator about an axis of rotation;
electric windings carried by said rotor;
means defining a fluid coolant flow path through said rotor in heat exchange relation with said winding whereby the windings and the rotor may be cooled;
a fluid coolant inlet on said rotor; and
a centrifugal filter carried by said rotor and interposed in fluid flow relation between said flow path and said inlet.
1 Assignment
0 Petitions
Accused Products
Abstract
A centrifugal filter for a high speed electrical machine of the type having a fluid flow path through its rotor. The centrifugal filter includes an enlargement at the beginning of the flow path through the rotor and which extends radially outwardly of the axis of rotation. As a consequence, contaminants in an incoming fluid stream are subjected to centrifugal force during operation of the machine and moved thereby radially outwardly within the enlargement so as to be out of the fluid stream. Consequently, the fluid stream, after separation of the contaminants therefrom within the enlargement by centrifugal force, may be passed with safety through the rotor for cooling and/or lubricating purposes.
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Citations
11 Claims
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1. In a rotary electric machine, the combination of:
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a stator; a rotor journalled for rotation relative to the stator about an axis of rotation; electric windings carried by said rotor; means defining a fluid coolant flow path through said rotor in heat exchange relation with said winding whereby the windings and the rotor may be cooled; a fluid coolant inlet on said rotor; and a centrifugal filter carried by said rotor and interposed in fluid flow relation between said flow path and said inlet. - View Dependent Claims (2, 3, 4, 5)
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6. In a rotary electric machine, the combination of:
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a stator; a rotor; bearings journalling said rotor for rotation relative to the stator about an axis of rotation; means defining a lubricant flow path through said rotor to said bearings; a lubricant inlet on said rotor; and a centrifugal filter carried by said rotor and in said flow path between said inlet and said bearings. - View Dependent Claims (7)
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8. In a rotary electric machine, the combination of:
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a stator; a rotor journalled for rotation relative to said stator about an axis of rotation; a fluid flow path extending through said rotor; an inlet on said rotor to said flow path and being on said axis; and an enlargement of said flow path adjacent said inlet and extending radially outwardly of said axis. - View Dependent Claims (9, 10, 11)
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Specification