|국가/구분||United States(US) Patent 등록|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 13 인용 특허 : 39|
A bushing and washer forming a bearing assembly at the outer radial end of a stator vane, the outer bearing assembly, and the bearing assembly at the inner radial end of the stator vane, the inner bearing assembly, that facilitate durability, effectiveness and reduced cost. Both the inner and outer bearing assemblies are designed to rotate relative to the vane shaft and the respective mating shroud or case to even out the wear around the circumference of the bushing. When a rotating bushing is used, a flange on the bushing is designed to be positioned on...
1. A bearing assembly for rotatively positioning a variable vane to an engine casing comprising a bushing wherein a first surface of the bushing contacts a variable vane stem; a second opposed surface of the bushing contacts the engine casing, and, upon installation of the bushing, the bushing rotates relative to the variable vane stem and engine casing.2. The bearing assembly of claim 1 wherein a rotating bushing clearance is sized to effectively minimize air leakage past the bushing over an engine operating regime.3. The bearing assembly of claim 1 whe...