|국가/구분||United States(US) Patent 등록|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 29 인용 특허 : 0|
A backup bearing for use with magnetic bearings to support a rotating shaft in the event that the magnetic bearings fail due to the loss of electric power. The backup bearing includes a housing and a fluid film bearing element which is adapted to passively float in the housing and with the shaft during normal operation of the magnetic bearings and which is adapted to support the rotating shaft on a film of fluid if the magnetic bearings fail.
[ We claim:] [1.] A backup bearing for use with a rotary shaft which is normally supported by primary radial bearings for rotation about a predetermined axis, there being a minimum radial operating clearance for said shaft rotating in said primary bearings, said backup bearing comprising a housing having an inner surface, a bearing element located in said housing, said bearing element having an outer surface and having means for supporting said shaft on a film of fluid when said shaft is rotating and is not supported by said primary bearings, there being...