|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||417/407 ; 415/177 ; 415/178|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 35 인용 특허 : 0|
Apparatus for cooling pliant film bearings of turbomachinery or the like and for protecting such bearings against heat transfer from the turbine side of the machinery. The turbomachine incorporates a hollow shaft for better cooling. Embodiments of the invention circulate cooling air through the interior of the hollow shaft and provide various structural configurations to thermally isolate the bearing shaft from the turbine wheel.
Apparatus for protecting turbomachinery bearings against excessive heat comprising: a pliant foil bearing having a plurality of foils extending about a rotatable shaft; a hollow shaft mounted to rotate within the pliant foil bearing and being coupled to a turbine wheel, at least a portion of the hollow shaft comprising a bearing journal; axial tie bolt means for coupling the shaft and wheel together in driving relationship at an end of the hollow shaft remote from the wheel, the end of the shaft adjacent the wheel being spatially separated therefrom; mea...