Apparatus for centering rotor assembly bearings
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F16C-027/04
F16C-027/00
출원번호
US-0928940
(2004-08-27)
등록번호
US-7384199
(2008-06-10)
발명자
/ 주소
Allmon,Barry Lynn
Riffle,Richard Leon
Cabe,Jerry Lynn
Anstead,Duane Howard
출원인 / 주소
General Electric Company
대리인 / 주소
Andes, Esq.,William Scott
인용정보
피인용 횟수 :
22인용 특허 :
29
초록▼
A bearing assembly for a gas turbine engine rotor includes, in an exemplary, an inner race, an outer race assembly, and a rolling element. The outer race assembly includes a body, a plurality of first springs attached to the body, and a plurality of second springs. Each first spring is radially alig
A bearing assembly for a gas turbine engine rotor includes, in an exemplary, an inner race, an outer race assembly, and a rolling element. The outer race assembly includes a body, a plurality of first springs attached to the body, and a plurality of second springs. Each first spring is radially aligned with a corresponding second spring forming a spring pair. The outer race assembly also includes a plurality of connecting members. Each connecting member extends between and connects a first end of the first spring and a first end of the second spring of said spring pair. The outer race assembly further includes a flange with each second spring attached to the flange.
대표청구항▼
What is claimed is: 1. A bearing assembly for a gas turbine engine rotor, said bearing assembly comprising: an inner race; an outer race assembly; and a rolling element; said outer race assembly comprising: a body; a plurality of first springs attached to said body; a plurality of second springs, e
What is claimed is: 1. A bearing assembly for a gas turbine engine rotor, said bearing assembly comprising: an inner race; an outer race assembly; and a rolling element; said outer race assembly comprising: a body; a plurality of first springs attached to said body; a plurality of second springs, each said first spring radially aligned with a corresponding said second spring forming a spring pair; a plurality of connecting members, each said connecting member extending between and connecting a first end of said first spring and a first end of said second spring of said spring pair such that a spring force is induced from each of said connecting members to each of said first springs and said second springs; and a flange, said second springs attached to said flange. 2. A bearing assembly in accordance with claim 1 wherein each said first spring comprises a polygonal cross section and each said second spring comprises a polygonal cross section. 3. A bearing assembly in accordance with claim 2 wherein a cross sectional area of each said first spring is substantially the same from said first end to a second end of said first spring, and a cross sectional area of each said second spring is substantially the same from said first end to a second end of said second spring. 4. A bearing assembly in accordance with claim 2 wherein a cross sectional area of each said first spring varies from said first end to a second end of said first spring, and a cross sectional area of each said second spring varies from said first end to a second end of said second spring. 5. A bearing assembly in accordance with claim 1 wherein each said first spring comprises a substantially rectangular cross section and each said second spring comprises a substantially rectangular cross section. 6. A bearing assembly in accordance with claim 5 wherein each said first spring comprises a first side, a second side, a third side and a fourth side, said first side substantially parallel to said third side, and said second side substantially parallel to said fourth side, and each said second spring comprises a first side, a second side, a third side and a fourth side, said first side substantially parallel to said third side, and said second side substantially parallel to said fourth side. 7. A bearing assembly in accordance with claim 1 wherein each said first spring and second spring of said spring pair are substantially parallel. 8. A bearing assembly in accordance with claim 1 wherein said plurality of said second springs are a first radial distance from said rolling element, and said plurality of said first springs are a second radial distance from said rolling element, said first radial distance is greater than said second radial distance. 9. A bearing assembly in accordance with claim 1 wherein said plurality of first springs and said plurality of second springs deflect an identical distance when subjected to radial force. 10. A rotor assembly comprising: a rotor shaft; and a bearing assembly configured to support said rotor shaft on a support frame, said bearing assembly comprising: an inner race; an outer race assembly; and a rolling element; said outer race assembly comprising: a body; a plurality of first springs attached to said body; a plurality of second springs, each said first spring radially aligned with a corresponding said second spring forming a spring pair; a plurality of connecting members, each said connecting member extending between and connecting a first end of said first spring and a first end of said second spring of said spring pair such that a spring force is induced from each of said connecting members to each of said first springs and said second springs; and a flange, said second springs attached to said flange. 11. A rotor assembly in accordance with claim 10 wherein each said first spring comprises a polygonal cross section and each said second spring comprises a polygonal cross section. 12. A rotor assembly in accordance with claim 11 wherein a cross sectional area of each said first spring is substantially the same from said first end to a second end of said first spring , and a cross sectional area of each said second spring is substantially the same from said first end to a second end of said second spring. 13. A bearing assembly in accordance with claim 11 wherein a cross sectional area of each said first spring varies from said first end to a second end of said first spring, and a cross sectional area of each said second spring varies from said first end to a second end of said second spring. 14. A rotor assembly in accordance with claim 10 wherein each said first spring comprises a substantially rectangular cross section and each said second spring comprises a substantially cross section. 15. A rotor assembly in accordance with claim 14 wherein each said first spring comprises a first side, a second side, a third side and a fourth side, said firstside substantially parallel to said third side, and said second side substantially parallel to said fourth side, and each said second spring comprises a first side, a second side, a third side and a fourth side, said first side substantially parallel to said third side, and said second side substantially parallel to said fourth side. 16. A rotor assembly in accordance with claim 10 wherein each said first spring and second spring of said spring pair are substantially parallel. 17. A rotor assembly in accordance with claim 10 wherein said plurality of said second springs are a first radial distance from said rolling element, and said plurality of said first springs are a second radial distance from said rolling, said first radial distance is greater than said second radial distance.
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