Air cycle machine fan and compressor housing

Patent metadata

Field	Value
Publication number	US-10619650-B2
Application number	US-201615148533-A
Country	US
Kind code	B2
Filing date	May 6, 2016
Priority date	May 6, 2016
Publication date	Apr 14, 2020
Grant date	Apr 14, 2020

Abstract

A fan and compressor housing for an air cycle machine includes a fan inlet disposed around a center axis of the housing and having a fan inlet mounting flange, a compressor outlet having a compressor outlet mounting flange, and a compressor inlet having a compressor inlet mounting flange. The fan inlet mounting flange has a pinhole disposed thereon configured to receive a pin from a fan inlet diffuser housing and a fan inlet counterbore configured to receive a mating component from the fan inlet diffuser housing. The compressor outlet mounting flange has a compressor outlet counterbore configured to receive a first mating component from a condenser/reheater. The compressor inlet mounting flange has a compressor inlet counterbore configured to receive a second mating component from the condenser/reheater.

First claim

The invention claimed is:

1. A fan and compressor housing for an air cycle machine, the housing comprising:
a fan inlet disposed around a center axis of the housing and having a fan inlet mounting flange, the fan inlet mounting flange having a pinhole disposed thereon configured to receive a pin from a fan inlet diffuser housing and a fan inlet counterbore configured to receive a mating component from the fan inlet diffuser housing;
a compressor outlet having a compressor outlet mounting flange, the compressor outlet mounting flange having a compressor outlet counterbore configured to receive a first mating component from a condenser/reheater; and
a compressor inlet having a compressor inlet mounting flange, the compressor inlet mounting flange having a compressor inlet counterbore configured to receive a second mating component from the condenser/reheater.

2. The fan and compressor housing of claim 1 , further comprising a fan outlet disposed radially inward from the fan inlet around the center axis of the housing.

3. The fan and compressor housing of claim 1 , wherein the pinhole has a pinhole diameter D 1 , the compressor outlet counterbore has a compressor outlet counterbore diameter D 2 and a compressor outlet counterbore depth D 3 , the compressor inlet counterbore has a compressor inlet counterbore diameter D 4 and a compressor inlet counterbore depth D 5 , and the fan inlet counterbore has a fan inlet counterbore diameter D 6 and a fan inlet counterbore depth D 7 .

4. The fan and compressor housing of claim 3 , wherein the ratio of the pinhole diameter D 1 to the fan inlet counterbore diameter D 6 is between 0.012 and 0.013.

5. The fan and compressor housing of claim 3 , wherein the ratio of the pinhole diameter D 1 to the fan inlet counterbore depth D 7 is between 0.596 and 0.604.

6. The fan and compressor housing of claim 3 , wherein the ratio of the fan inlet counterbore diameter D 6 to the fan inlet counterbore depth D 7 is between 47.138 and 49.165.

7. The fan and compressor housing of claim 3 , wherein the ratio of the compressor outlet counterbore diameter D 2 to the compressor outlet counterbore depth D 3 is between 20.860 and 24.015.

8. The fan and compressor housing of claim 3 , wherein the ratio of the compressor inlet counterbore diameter D 4 to the compressor inlet counterbore depth D 5 is between 20.860 and 24.015.

9. An air cycle machine comprising:
a first turbine section configured to expand air routed thereto;
a second turbine section configured to expand air routed thereto;
a fan and compressor section configured to draw in and compress air routed thereto and having a fan and compressor housing, the fan and compressor housing further comprising:
a fan inlet disposed around a center axis of the housing and having a fan inlet mounting flange, the fan inlet mounting flange having a pinhole disposed thereon configured to receive a pin from a fan inlet diffuser housing and a fan inlet counterbore configured to receive a mating component from the fan inlet diffuser housing;
a compressor outlet having a compressor outlet mounting flange, the compressor outlet mounting flange having a compressor outlet counterbore configured to receive a first mating component from a condenser/reheater; and
a compressor inlet having a compressor inlet mounting flange, the compressor inlet mounting flange having a compressor inlet counterbore configured to receive a second mating component from the condenser/reheater.

10. The air cycle machine of claim 9 , further comprising a fan outlet disposed radially inward from the fan inlet around the center axis of the housing.

11. The air cycle machine of claim 9 , wherein the pinhole has a pinhole diameter D 1 , the compressor outlet counterbore has a compressor outlet counterbore diameter D 2 and a compressor outlet counterbore depth D 3 , the compressor inlet counterbore has a compressor inlet counterbore diameter D 4 and a compressor inlet counterbore depth D 5 , and the fan inlet counterbore has a fan inlet counterbore diameter D 6 and a fan inlet counterbore depth D 7 .

12. The air cycle machine of claim 9 , wherein the ratio of the pinhole diameter D 1 to the fan inlet counterbore diameter D 6 is between 0.012 and 0.013.

13. The air cycle machine of claim 9 , wherein the ratio of the pinhole diameter D 1 to the fan inlet counterbore depth D 7 is between 0.596 and 0.604.

14. The air cycle machine of claim 9 , wherein the ratio of the fan inlet counterbore diameter D 6 to the fan inlet counterbore depth D 7 is between 47.138 and 49.165.

15. The air cycle machine of claim 9 , wherein the ratio of the compressor outlet counterbore diameter D 2 to the compressor outlet counterbore depth D 3 is between 20.860 and 24.015.

16. The air cycle machine of claim 9 , wherein the ratio of the compressor inlet counterbore diameter D 4 to the compressor inlet counterbore depth D 5 is between 20.860 and 24.015.

Assignees

• Hamilton Sundstrand Corp

Inventors

• Chrabascz Eric
• Rosen Seth E

Classifications

• F05D2220/50

  for auxiliary power units (APU's) · CPC title

• F04D29/624 Primary

  especially adapted for elastic fluid pumps · CPC title

• F04D25/04

  the pump being fluid-driven {(pumps driven by exhaust gases F02B37/00, F02B39/00; turbochargers F02C6/12)} · CPC title

• B64D13/08

  the air being heated or cooled · CPC title

• F04D29/4233

  with volutes extending mainly in axial or radially inward direction · CPC title