초록 ▼

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 b

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.

대표청구항 ▼

[ What is claimed is:] [1.] A combination, comprising:a gas turbine engine having a mechanical housing;a shaft rotatable within said housing and having a plurality of airfoils coupled thereto;a magnetic bearing for supporting the shaft; anda rolling element bearing coupled to said shaft for sharing

[ What is claimed is:] [1.] A combination, comprising:a gas turbine engine having a mechanical housing;a shaft rotatable within said housing and having a plurality of airfoils coupled thereto;a magnetic bearing for supporting the shaft; anda rolling element bearing coupled to said shaft for sharing the load on said shaft said rolling element bearing having an inner race coupled to said shaft and an outer race coupled to said mechanical housing and a plurality of rolling elements normally contacting said inner race.