The present invention contemplates a combination bearing for supporting a rotating rotor within a gas turbine engine. The combination bearing including a magnetic bearing system and dry solid lubricated rolling element auxiliary bearings units for sharing the shaft load. The rotating central shaft being normally supported by the active electromagnetic bearing system. The auxiliary bearing unit being soft mounted to the shaft and engine housing and rotatable with the shaft. Soft mounting of the bearings between the housing and the shaft allows a substantially stable transition from the all magnetic bearing support to a physically contacting mechanically assisted support of the shaft. <IMAGE>
申请公布号
DE69730781(D1)
申请公布日期
2004.10.28
申请号
DE1997630781
申请日期
1997.06.26
申请人
ROLLS-ROYCE CORP., INDIANAPOLIS;IANNELLO, VICTOR
发明人
HENRY, MARK S.;IANNELLO, VICTOR;PFAFFENBERGER, EUGENE E.;BURNS, DONALD W.