IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0167798
(2011-06-24)
|
등록번호 |
US-8834095
(2014-09-16)
|
발명자
/ 주소 |
|
출원인 / 주소 |
- United Technologies Corporation
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
10 인용 특허 :
20 |
초록
▼
A bearing support assembly for supporting a bearing assembly within a bearing compartment of a gas turbine engine includes a centering spring and a bearing support member integrally joined together to form a one piece structure. The centering spring connects to the bearing assembly and has a portion
A bearing support assembly for supporting a bearing assembly within a bearing compartment of a gas turbine engine includes a centering spring and a bearing support member integrally joined together to form a one piece structure. The centering spring connects to the bearing assembly and has a portion that extends conically relative to a centerline axis of the gas turbine engine. The bearing support member extends from the centering spring to connect to an engine case of the gas turbine engine.
대표청구항
▼
1. A gas turbine engine including a one-piece bearing support assembly for supporting a bearing assembly within a bearing compartment, comprising: a bearing support member comprising an upper connection section configured to connect to an engine case of the gas turbine engine;a centering spring inte
1. A gas turbine engine including a one-piece bearing support assembly for supporting a bearing assembly within a bearing compartment, comprising: a bearing support member comprising an upper connection section configured to connect to an engine case of the gas turbine engine;a centering spring integrally joined with the bearing support member opposite the upper connection section, the centering spring comprising: a portion that extends conically relative to a centerline axis of the gas turbine engine; anda cylindrical main body that extends axially from the portion that extends conically and is configured to connect to an outer race of the bearing assembly,wherein the portion that extends conically comprises at least one beam that extends conically between the cylindrical main body and the bearing support member; andan intermediate connection section disposed between the at least one beam and the bearing support member, wherein the intermediate connection section is configured to be connected to a seal housing having an outer radial arcuate portion that extends around the bearing assembly. 2. The gas turbine engine of claim 1, wherein the at least one beam is generally aligned with the bearing support member. 3. The gas turbine engine of claim 2, wherein a stiffness of the at least one beam is determined by a number, a size, and a shape. 4. The gas turbine engine of claim 1, further comprising a squeeze film damper disposed radially outward of the bearing assembly between the cylindrical main body of the centering spring and an inner portion of the seal housing. 5. The gas turbine engine of claim 1, wherein the centering spring and bearing support member are integrally joined by machining a single piece stock, by forging, by casting, or by welding. 6. The gas turbine engine of claim 1, wherein an outer race of the bearing assembly is press fit into the centering spring and is held in place by a nut that fastens to the centering spring and contacts the outer race. 7. An assembly for supporting and housing a bearing assembly within a bearing compartment of a gas turbine engine, comprising: a centering spring having at least one beam that extends conically relative to a centerline axis of the gas turbine engine and a main body that connects to the bearing assembly;a bearing support member integrally joined and generally aligned with the centering spring and extending to connect to an engine case of the gas turbine engine;a carbon seal assembly that connects to the bearing support assembly, wherein the carbon seal assembly includes an arcuate seal housing that extends around the bearing assembly; anda squeeze film damper disposed radially outward of the bearing assembly between the centering spring and an inner portion of the seal housing. 8. The assembly of claim 7, wherein a stiffness of the at least one beam is determined by a number, a size, and a shape. 9. The assembly of claim 7, wherein the centering spring and bearing support member are integrally joined by machining a single piece stock, by forging, by casting, or by welding. 10. The assembly of claim 7, wherein the at least one beam is generally aligned with the bearing support member. 11. A gas turbine engine, comprising: a bearing compartment disposed within the gas turbine engine, the bearing compartment housing a bearing assembly therein;a centering spring integrally joined with a bearing support member to comprise a one-piece bearing support assembly, the centering spring having both a portion that extends conically relative to a centerline axis of the gas turbine engine and a main body that contacts and extends generally axially along the bearing assembly,wherein the bearing support assembly has an upper connection section at an outward radial portion and an intermediate connection section at a middle radial portion,wherein the centering spring includes at least one beam that extends conically to a rearward end of the intermediate connection section,wherein the main body portion is cylindrical and extends to hold an outer race of the bearing assembly, andwherein an outer radial end of the at least one beam is integrally joined to the intermediate connection section of the bearing support assembly; anda carbon seal assembly having a forward end connected by a fastener to the bearing support assembly at the intermediate connection section and a seal housing having an outer radial arcuate portion that extends around the bearing assembly. 12. The gas turbine engine of claim 11, wherein the at least one beam is generally aligned with the bearing support member. 13. The gas turbine engine of claim 11, wherein a stiffness of the at least one beam is determined by a number, a size, and a shape. 14. The gas turbine engine of claim 11, wherein the centering spring and bearing support member are integrally joined by machining a single piece stock, by forging, by casting, or by welding. 15. The gas turbine engine of claim 11, wherein an outer race of the bearing assembly is press fit into the main body of the centering spring and is held in place by a nut that fastens to the centering spring and contacts the outer race.
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