|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||310/090.5 ; 310/090 ; 384/100 ; 384/102|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 11 인용 특허 : 13|
Undesirably high stresses are minimized in a magnetic thrust bearing (15) having a disc (52) mounted on a shaft (54). The disc (52) is flanked on both sides (60,62) by respective armatures (68,70) which act to apply a magnetic field to the disc (52) to locate the same at a desired location along the axis (66) of the rotor (14) of the machine in which the thrust bearing (15) is employed. A peripheral, radially outwardly opening, annular groove (76) is disposed in the outer periphery (64) of the thrust bearing disc (52) to relieve stresses during operation...
[ We claim:] [1.] In a high speed dynamoelectric machine the combination ofa stator;electrical windings on said stator;a rotor journalled for rotation about an axis for rotation within said stator; anda magnetic thrust bearing for accommodation of forces applied to said rotor along said axis and including a disc of magnetic material connected to said rotor and having a periphery in the form of a surface of revolution concentric with said axis; armatures flanking said disc for applying magnetic forces to said disc to position the same at a desired locatio...