Turbine housing

Patent metadata

Field	Value
Publication number	US-9393652-B2
Application number	US-201314049640-A
Country	US
Kind code	B2
Filing date	Oct 9, 2013
Priority date	Oct 9, 2013
Publication date	Jul 19, 2016
Grant date	Jul 19, 2016

Abstract

A turbine housing includes a turbine inlet plenum and a turbine housing body. The turbine housing body includes a turbine outlet mounting face, a seal plate mounting face, and a center bore formed between the turbine outlet mounting face and the seal plate mounting face. A first support is formed about the turbine inlet plenum and in contact with the turbine housing body. A relief pocket is formed in the first support proximate the seal plate mounting face. The relief pocket is formed at a first distance from a turbine housing center axis of the center bore and at a first depth relative to the seal plate mounting face. A ratio of the first distance to the first depth is between 2.66 and 2.90.

First claim

The invention claimed is:

1. A turbine housing, comprising:
a turbine inlet plenum;
a turbine housing body comprising a turbine outlet mounting face, a seal plate mounting face, and a center bore formed between the turbine outlet mounting face and the seal plate mounting face;
a first support formed about the turbine inlet plenum and in contact with the turbine housing body; and
a relief pocket formed in the first support proximate the seal plate mounting face, the relief pocket formed at a first distance from a turbine housing center axis of the center bore and at a first depth relative to the seal plate mounting face, wherein a ratio of the first distance to the first depth is between 2.66 and 2.90.

2. The turbine housing according to claim 1 , further comprising:
a second support formed about the turbine inlet plenum and in contact with the turbine housing body, the second support comprising a casting target having a center hole, wherein a first datum is formed by a plane passing through the turbine housing center axis and the center hole.

3. The turbine housing according to claim 2 , wherein the relief pocket is formed at an angle of about 35.5 degrees relative to the first datum.

4. The turbine housing according to claim 3 , wherein a relief pocket radius is formed at the first distance extending an offset distance from the angle, and a ratio of the offset distance to the relief pocket radius is between 1.26 and 1.66.

5. The turbine housing according to claim 2 , wherein the relief pocket further comprises an inner contour having an inner contour radius, an outer contour having an outer contour radius, and a ratio of the inner contour radius to the outer contour radius is between 1.41 and 2.95.

6. The turbine housing according to claim 5 , wherein the second support further comprises an origin of curvature at a second depth from the seal plate mounting face, and a ratio of the first depth to the second depth is between 1.52 and 1.91.

7. The turbine housing according to claim 1 , wherein the turbine housing body further comprises an outer perimeter at a second distance from the turbine housing center axis, and a ratio of the first distance to the second distance is between 1.04 and 1.05.

8. An air cycle machine assembly comprising:
a turbine housing, comprising:
a turbine inlet plenum;
a turbine housing body comprising a turbine outlet mounting face, a seal plate mounting face, and a center bore formed between the turbine outlet mounting face and the seal plate mounting face;
a first support formed about the turbine inlet plenum and in contact with the turbine housing body; and
a relief pocket formed in the first support proximate the seal plate mounting face, the relief pocket formed at a first distance from a turbine housing center axis of the center bore and at a first depth relative to the seal plate mounting face, wherein a ratio of the first distance to the first depth is between 2.66 and 2.90;

a compressor housing;
a seal plate coupled to the turbine housing; and
a fastener installed proximate the relief pocket and configured to couple the seal plate with the compressor housing.

9. The air cycle machine assembly according to claim 8 , wherein the turbine housing further comprises a second support formed about the turbine inlet plenum and in contact with the turbine housing body, the second support comprising a casting target having a center hole, wherein a first datum is formed by a plane passing through the turbine housing center axis and the center hole.

10. The air cycle machine assembly according to claim 9 , wherein the relief pocket is formed at an angle of about 35.5 degrees relative to the first datum.

11. The air cycle machine assembly according to claim 10 , wherein a relief pocket radius is formed at the first distance extending an offset distance from the angle, and a ratio of the offset distance to the relief pocket radius is between 1.26 and 1.66.

12. The air cycle machine assembly according to claim 9 , wherein the relief pocket further comprises an inner contour having an inner contour radius, an outer contour having an outer contour radius, and a ratio of the inner contour radius to the outer contour radius is between 1.41 and 2.95.

13. The air cycle machine assembly according to claim 12 , wherein the second support further comprises an origin of curvature at a second depth from the seal plate mounting face, and a ratio of the first depth to the second depth is between 1.52 and 1.91.

14. The air cycle machine assembly according to claim 8 , wherein the turbine housing body further comprises an outer perimeter at a second distance from the turbine housing center axis, and a ratio of the first distance to the second distance is between 1.04 and 1.05.

15. A method of installing a turbine housing in an air cycle machine, comprising:
aligning an outer mounting hole of a seal plate with a relief pocket of the turbine housing, the turbine housing comprising:
a turbine inlet plenum;
a turbine housing body comprising a turbine outlet mounting face, a seal plate mounting face, and a center bore formed between the turbine outlet mounting face and the seal plate mounting face;

a first support formed about the turbine inlet plenum and in contact with the turbine housing body; and
the relief pocket formed in the first support proximate the seal plate mounting face, the relief pocket formed at a first distance from a turbine housing center axis of the center bore and at a first depth relative to the seal plate mounting face, wherein a ratio of the first distance to the first depth is between 2.66 and 2.90;
coupling the seal plate to the turbine housing; and
installing a fastener into the outer mounting hole proximate the relief pocket to couple the seal plate with a compressor housing.

16. The method according to claim 15 , wherein the turbine housing further comprises a second support formed about the turbine inlet plenum and in contact with the turbine housing body, the second support comprising a casting target having a center hole, wherein a first datum is formed by a plane passing through the turbine housing center axis and the center hole.

17. The method according to claim 16 , wherein the relief pocket is formed at an angle of about 35.5 degrees relative to the first datum.

18. The method according to claim 17 , wherein a relief pocket radius is formed at the first distance extending an offset distance from the angle, and a ratio of the offset distance to the relief pocket radius is between 1.26 and 1.66.

19. The method according to claim 16 , wherein the relief pocket further comprises an inner contour having an inner contour radius, an outer contour having an outer contour radius, and a ratio of the inner contour radius to the outer contour radius is between 1.41 and 2.95.

20. The method according to claim 19 , wherein the second support further comprises an origin of curvature at a second depth from the seal plate mounting face, and a ratio of the first depth to the second depth is between 1.52 and 1.91.

Assignees

• Hamilton Sundstrand Corp

Inventors

• Colson Darryl A
• Wytas Clarence J

Classifications

• Y10T29/49229

  Prime mover or fluid pump making · CPC title

• F01D11/02

  by non-contact sealings, e.g. of labyrinth type (for sealing space between rotor blade tips and stator F01D11/08) · CPC title

• F01D25/243

  Flange connections; Bolting arrangements (F01D25/265 takes precedence) · CPC title

• F01D9/026 Primary

  Scrolls for radial machines or engines · CPC title

• B23P19/10 Primary

  Aligning parts to be fitted together · CPC title