An outlet housing for an aircraft cabin air compressor includes a volute comprising radially inner and outer portions, and having first, second, third, and fourth circumferential regions. The first circumferential region is between the fourth and second circumferential region. The second circumferen
An outlet housing for an aircraft cabin air compressor includes a volute comprising radially inner and outer portions, and having first, second, third, and fourth circumferential regions. The first circumferential region is between the fourth and second circumferential region. The second circumferential region is between the first circumferential region and the third circumferential region. The third circumferential region is between the second circumferential region and the fourth circumferential region. A portion of the volute in the first circumferential region has a first wall thickness. A portion of the volute in the second circumferential region has a second wall thickness. A portion of the volute in the third circumferential region has a third wall thickness. A portion of the volute in the fourth circumferential region has a fourth wall thickness.
대표청구항▼
1. An outlet housing for an aircraft cabin air compressor, the outlet housing comprising: a volute comprising: a radially outer portion;a radially inner portion;a first circumferential region having a portion with a wall thickness t1 on the radially outer portion of the volute;a second circumferenti
1. An outlet housing for an aircraft cabin air compressor, the outlet housing comprising: a volute comprising: a radially outer portion;a radially inner portion;a first circumferential region having a portion with a wall thickness t1 on the radially outer portion of the volute;a second circumferential region having a portion with a wall thickness t2 on the radially outer portion of the volute and a portion with the wall thickness t2 on the radially inner portion of the volute;a third circumferential region having a portion with a wall thickness t4 between the radially outer portion and the radially inner portion of the volute; anda fourth circumferential region having a portion with a wall thickness t3 between the radially outer portion and the radially inner portion of the volute;wherein the first circumferential region is between the fourth circumferential region and the second circumferential region, the second circumferential region is between the first circumferential region and the third circumferential region, the third circumferential region is between the second circumferential region and the fourth circumferential region, and the fourth circumferential region is between the first circumferential region and the third circumferential region; andwherein the wall thickness t1 is greater than the wall thickness t2, the wall thickness t4, and the wall thickness t3; the wall thickness t2 is less than the wall thickness t4 and the wall thickness t3; and the wall thickness t4 is greater than the wall thickness t3; anda compressor outlet located in the first circumferential region of the volute. 2. The outlet housing of claim 1 further comprising: a support ring connected to the radially inner portion of the volute;a journal bearing support sleeve; anda web between the journal bearing support sleeve and the support ring. 3. The outlet housing of claim 1, wherein a ratio of the wall thickness t1 to the wall thickness t2 is less than or equal to 4.00 and greater than or equal to 2.18. 4. The outlet housing of claim 1, wherein a ratio of the wall thickness t4 to the wall thickness t2 is less than or equal to 2.58 and greater than or equal to 1.27. 5. The outlet housing of claim 1, wherein a ratio of the wall thickness t3 to the wall thickness t2 is less than or equal to 2.29 and greater than or equal to 1.09. 6. The outlet housing of claim 1, further comprising: a fillet in the first circumferential region between a surface of the volute and a surface of the compressor outlet, the fillet having a fillet radius;wherein the first circumferential region includes an inner radius defined by the intersection of the surface of the volute and the surface of the compressor outlet, and wherein a ratio of the fillet radius to the inner radius is less than or equal to 6.63 and greater than or equal to 3.67. 7. The outlet housing of claim 1, wherein the first circumferential region includes a portion with the wall thickness t2 adjacent to the portion with the wall thickness t1. 8. The outlet housing of claim 1, wherein the second circumferential region includes a portion with the wall thickness t3 between the two portions having the wall thickness t2. 9. The outlet housing of claim 1, wherein the third circumferential region includes a portion with a wall thickness t5 on the radially outer portion of the volute and a portion with the wall thickness t5 on the radially inner portion of the volute, wherein the two portions with the wall thickness t5 are adjacent opposite sides of the portion having the wall thickness t4, and wherein the wall thickness t5 is less than the wall thickness t4. 10. The outlet housing of claim 1, wherein the fourth circumferential region includes a portion with the wall thickness t2 on the radially outer portion of the volute and a portion with the wall thickness t2 on the radially inner portion of the volute, wherein the two portions with the wall thickness t2 are adjacent opposite sides of the portion having the wall thickness t3. 11. An aircraft cabin air compressor assembly comprising: an outlet housing comprising: a volute comprising: a radially outer portion;a radially inner portion;a first circumferential region having a portion with a wall thickness t1 on the radially outer portion of the volute;a second circumferential region having a portion with a wall thickness t2 on the radially outer portion of the volute and a portion with the wall thickness t2 on the radially inner portion of the volute;a third circumferential region having a portion with a wall thickness t4 between the radially outer portion and the radially inner portion of the volute; anda fourth circumferential region having a portion with a wall thickness t3 between the radially outer portion and the radially inner portion of the volute;a support ring connected to the radially inner portion of the volute;a journal bearing support sleeve;a web connected between the journal bearing support sleeve and the support ring; anda compressor outlet located in the first circumferential region of the volute;an inlet housing connected to the outlet housing;a compressor rotor positioned within the inlet housing and having a plurality of blades;a motor housing connected to the outlet housing at the support ring;a motor positioned within the motor housing and having a drive shaft that extends through a journal bearing and is connected to the compressor rotor;wherein the first circumferential region is between the fourth circumferential region and the second circumferential region, the second circumferential region is between the fourth circumferential region and the third circumferential region, the third circumferential region is between the second circumferential region and the fourth circumferential region, and the fourth circumferential region is between the first circumferential region and the third circumferential region; andwherein the wall thickness t1 is greater than the wall thickness t2, the wall thickness t4, and the wall thickness t3; the wall thickness t2 is less the wall thickness t4 and the wall thickness t3; and the third wall thickness t4 is greater than the fourth wall thickness t3. 12. The assembly of claim 11, wherein a ratio of the wall thickness t1 to the wall thickness t2 is less than or equal to 4.00 and greater than or equal to 2.18. 13. The assembly of claim 11, wherein a ratio of the wall thickness t4 to the wall thickness t2 is less than or equal to 2.58 and greater than or equal to 1.27. 14. The assembly of claim 11, wherein a ratio of the wall thickness t3 to the wall thickness t2 is less than or equal to 2.29 and greater than or equal to 1.09. 15. The assembly of claim 11, further comprising: a fillet in the first circumferential region between a surface of the volute and a surface of the compressor outlet, the fillet having a fillet radius;wherein the first circumferential region includes an inner radius defined by the intersection of the surface of the volute and the surface of the compressor outlet, and wherein a ratio of the fillet radius to the inner radius is less than or equal to 6.63 and greater than or equal to 3.67. 16. The assembly of claim 11, wherein the first circumferential region includes a portion having the wall thickness t2 adjacent to the portion with the wall thickness t1. 17. The assembly of claim 11, wherein the second circumferential region includes a portion with the wall thickness t3 between two portions having the wall thickness t2. 18. The assembly of claim 11, wherein the third circumferential region includes a portion with a wall thickness t5 on the radially outer portion of the volute and a portion with the wall thickness t5 on the radially inner portion of the volute, wherein the two portions with the wall thickness t5 are adjacent opposite sides of the portion having the wall thickness t4, and wherein the wall thickness t5 is less than the wall thickness t4. 19. The assembly of claim 11, wherein the fourth circumferential region includes two portions with the wall thickness t2 on the radially outer portion of the volute and a portion with the wall thickness t2 on the radially inner portion of the volute, wherein the two portions with the wall thickness t2 are adjacent opposite sides of the portion having the wall thickness t3.
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이 특허에 인용된 특허 (12)
McAuliffe,Christopher; Beers,Craig M.; Zywiak,Thomas, Air bearing and motor cooling.
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