The present disclosure is directed to a sump housing for a gas turbine engine. The sump housing includes a base portion and a first wall extending outwardly from the base portion. The first wall and the base portion at least partially define an inner chamber. A second wall is positioned outwardly fr
The present disclosure is directed to a sump housing for a gas turbine engine. The sump housing includes a base portion and a first wall extending outwardly from the base portion. The first wall and the base portion at least partially define an inner chamber. A second wall is positioned outwardly from the first wall and extends outwardly from the base portion. The base portion, the first wall, and the second wall at least partially define an outer chamber positioned outwardly from the inner chamber. A projection extending inwardly from the first wall engages a bearing assembly. The base portion, the first wall, the second wall, and the projection are integrally coupled together.
대표청구항▼
1. A sump housing for a gas turbine engine, wherein the gas turbine engine defines an axial centerline axis around which the sump housing is defined, wherein a radial direction, an axial direction, and a circumferential direction are each defined relative to the axial centerline axis, the sump housi
1. A sump housing for a gas turbine engine, wherein the gas turbine engine defines an axial centerline axis around which the sump housing is defined, wherein a radial direction, an axial direction, and a circumferential direction are each defined relative to the axial centerline axis, the sump housing comprising: a base portion comprising an outer base portion radially spaced apart from an inner base portion coupled together via a connecting wall;a first wall extending axially outward from the inner base portion, the first wall and the inner base portion at least partially defining an inner chamber;a second wall positioned radially outward from the first wall and extending axially outward and radially inward from the outer base portion, wherein the outer base portion, the first wall, and the second wall at least partially define an outer chamber axially and radially surrounding the inner chamber; anda first projection extending inwardly from the first wall for engaging a bearing assembly;wherein the base portion, the first wall, the second wall, and the first projection are integrally coupled together; a third wall extending axially and radially outward from and integrally coupled to the second wall, wherein the third wall is configured to couple to an accelerator. 2. The sump housing of claim 1, further comprising: a second projection extending axially outward from and integrally coupled to the second wall, the second projection being positioned inwardly between the third wall and a second wall flange, and wherein the third wall and the second projection collectively define a slot for receiving a wall of the accelerator. 3. The sump housing of claim 2, wherein the third wall defines a plurality of apertures extending therethrough. 4. The sump housing of claim 1, wherein the first wall and the second wall are curved in the axial direction. 5. The sump housing of claim 1, further comprising: a fourth wall extending radially outwardly and axially outwardly from the outer base portion, the fourth wall being integrally coupled to the outer base portion. 6. The sump housing of claim 5, further comprising: a mounting flange extending radially outwardly from and integrally coupled to the fourth wall, wherein the mounting flange defines one or more mounting apertures extending therethrough. 7. The sump housing of claim 1, further comprising: a plurality of tubes extending outwardly from and integrally coupled to the second wall, wherein each of the plurality of tubes is in fluid communication with the inner chamber. 8. The sump housing of claim 7, wherein the inner chamber is configured to contain a lubricant and the outer chamber is configured to contain air. 9. The sump housing of claim 8, wherein one of the plurality of tubes is configured to supply lubricant to the inner chamber and another of the plurality of tubes is configured to scavenge lubricant from inner chamber. 10. A gas turbine engine, wherein the gas turbine engine defines an axial centerline axis around which the sump housing is defined, wherein a radial direction, an axial direction, and a circumferential direction are each defined relative to the axial centerline axis, the gas turbine engine comprising: a compressor;a combustion section;a turbine;a shaft drivingly coupling the compressor and the turbine;a bearing assembly rotatably supporting the shaft; anda sump assembly enclosing the bearing assembly, the sump assembly comprising:a main housing comprising an inner base portion and an outer base portion coupled together via a connecting wall, a first wall extending axially outward from the inner base portion, a second wall positioned radially outward from the first wall and extended axially outward and radially inward from the outer base portion, and a first projection extending radially inward from the outer base portion, and wherein the first projection is extended to the first wall that engages the bearing assembly;a front housing comprising a front housing projection, a front housing base portion attached to the main housing, and a front housing wall;a first seal positioned between the front housing wall and the shaft;a second seal positioned between the front housing projection and the shaft;a third seal positioned between the first wall of the main housing and the shaft; anda fourth seal positioned between the second wall of the main housing and the shaft;wherein the base portion of the main housing, the first wall of the main housing, the front housing projection, the shaft, the second seal, and the third seal collectively define an inner chamber within which the bearing assembly is positioned;wherein the front housing base portion, the shaft, the first seal, and the second seal collectively define a first outer chamber; andwherein the outer base portion of the main housing, the connecting wall of the main housing, the first wall of the main housing, the second wall of the main housing, the shaft, the third seal, and the fourth seal collectively define a second outer chamber; an accelerator; and a third wall extending axially and radially outward from and integrally coupled to the second wall of the main housing, wherein the third wall is coupled to the accelerator. 11. The gas turbine engine of claim 10, wherein the base portion of the main housing, the first wall of the main housing, the second wall of the main housing, and the first projection of the main housing are integrally coupled together. 12. The gas turbine engine of claim 10, further comprising: a second projection extending axially outward from and integrally coupled to the second wall of the main housing, the second projection being positioned inwardly between the third wall and a second wall flange, and wherein the third wall and the second projection collectively define a slot that receives a wall of the accelerator. 13. The gas turbine engine of claim 10, wherein the first wall of the main housing extends radially inwardly and axially outwardly from the base portion and the second wall of the main housing extends radially inwardly and axially outwardly from the base. 14. The gas turbine engine of claim 10, further comprising: a fourth wall extending radially and axially outwardly from and integrally coupled to the outer base portion of the main housing, wherein the fourth wall circumferentially encloses at least a portion of the front housing. 15. The gas turbine engine of claim 14, further comprising: a mounting flange extending radially outwardly from and integrally coupled to the fourth wall, wherein the mounting flange defines one or more mounting apertures extending therethrough for coupling the main housing to a combustor frame in the combustion section. 16. The gas turbine engine of claim 10, further comprising: a lubricant supply tube extending outwardly from and integrally coupled to the second wall of the main housing; anda lubricant scavenge tube extending outwardly from and integrally coupled to the second wall of the main housing;wherein the lubricant supply tube and the lubricant scavenge tube are in fluid communication with the inner chamber. 17. The gas turbine engine of claim 10, wherein the inner chamber contains a lubricant, the first outer chamber contains air, and the second outer chamber contains air. 18. The gas turbine engine of claim 10, wherein the first seal, the second seal, the third seal, and the fourth seal comprise labyrinth seals or hydrodynamic seals.
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이 특허에 인용된 특허 (8)
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