U.S. patent application number 13/561368 was filed with the patent office on 2014-01-30 for cabin air compressor heat housing.
This patent application is currently assigned to HAMILTON SUNDSTRAND CORPORATION. The applicant listed for this patent is Danielle Mansfield-Marcoux, Brent J. Merritt, Seth E. Rosen. Invention is credited to Danielle Mansfield-Marcoux, Brent J. Merritt, Seth E. Rosen.
Application Number | 20140026993 13/561368 |
Document ID | / |
Family ID | 49993701 |
Filed Date | 2014-01-30 |
United States Patent
Application |
20140026993 |
Kind Code |
A1 |
Rosen; Seth E. ; et
al. |
January 30, 2014 |
CABIN AIR COMPRESSOR HEAT HOUSING
Abstract
A cabin air compressor heat housing for a cabin air compressor
assembly includes a compressor inlet extending from a body of the
cabin air compressor heat housing. The cabin air compressor heat
housing also includes an add-heat valve interface extending
transversely from the compressor inlet. The cabin air compressor
heat housing further includes a diffuser actuator interface formed
in the body of the cabin air compressor heat housing. A ratio of a
diameter of the compressor inlet to a diameter of the diffuser
actuator interface is between 1.90 and 1.98.
Inventors: |
Rosen; Seth E.; (Middletown,
CT) ; Mansfield-Marcoux; Danielle; (Enfield, CT)
; Merritt; Brent J.; (Southwick, MA) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Rosen; Seth E.
Mansfield-Marcoux; Danielle
Merritt; Brent J. |
Middletown
Enfield
Southwick |
CT
CT
MA |
US
US
US |
|
|
Assignee: |
HAMILTON SUNDSTRAND
CORPORATION
Windsor Locks
CT
|
Family ID: |
49993701 |
Appl. No.: |
13/561368 |
Filed: |
July 30, 2012 |
Current U.S.
Class: |
137/565.01 |
Current CPC
Class: |
F04D 17/10 20130101;
F04D 29/083 20130101; F04D 29/462 20130101; F04D 29/4206 20130101;
F05D 2250/51 20130101; F04D 29/4213 20130101; F04D 29/582 20130101;
Y10T 137/85978 20150401 |
Class at
Publication: |
137/565.01 |
International
Class: |
F24H 9/00 20060101
F24H009/00 |
Claims
1. A cabin air compressor heat housing comprising: a compressor
inlet extending from a body of the cabin air compressor heat
housing; an add-heat valve interface extending transversely from
the compressor inlet; and a diffuser actuator interface formed in
the body of the cabin air compressor heat housing, wherein a ratio
of a diameter of the compressor inlet to a diameter of the diffuser
actuator interface is between 1.90 and 1.98.
2. The cabin air compressor heat housing of claim 1, wherein a
ratio of a diameter of the add-heat valve interface to the diameter
of the diffuser actuator interface is between 1.40 and 1.42.
3. The cabin air compressor heat housing of claim 2, wherein a
ratio of the diameter of the compressor inlet to the diameter of
the add-heat valve interface is between 1.35 and 1.40.
4. The cabin air compressor heat housing of claim 1, further
comprising a seal groove formed in the diffuser actuator
interface.
5. The cabin air compressor heat housing of claim 4, wherein a
ratio of the diameter of the diffuser actuator interface to a width
of the seal groove is between 16.71 and 18.11.
6. The cabin air compressor heat housing of claim 5, wherein a
ratio of the width of the seal groove to a depth of the seal groove
is between 1.44 and 1.71.
7. The cabin air compressor heat housing of claim 1, wherein the
compressor inlet, the body of the cabin air compressor heat
housing, the add-heat valve interface, and the diffuser actuator
interface are formed of a unitary structure.
8. A cabin air compressor assembly comprising: a cabin air
compressor heat housing coupled to a cabin air compressor housing,
the cabin air compressor heat housing comprising: a compressor
inlet extending from a body of the cabin air compressor heat
housing; an add-heat valve interface extending transversely from
the compressor inlet; and a diffuser actuator interface formed in
the body of the cabin air compressor heat housing, wherein a ratio
of a diameter of the compressor inlet to a diameter of the diffuser
actuator interface is between 1.90 and 1.98.
9. The cabin air compressor assembly of claim 8, wherein a ratio of
a diameter of the add-heat valve interface to the diameter of the
diffuser actuator interface is between 1.40 and 1.42.
10. The cabin air compressor assembly of claim 9, wherein a ratio
of the diameter of the compressor inlet to the diameter of the
add-heat valve interface is between 1.35 and 1.40.
11. The cabin air compressor assembly of claim 8, further
comprising: a diffuser actuator; a sealing member; and a seal
groove formed in the diffuser actuator interface, wherein the
diffuser actuator is coupled to the diffuser actuator interface and
the sealing member is compressed in the seal groove between the
diffuser actuator interface and the diffuser actuator.
12. The cabin air compressor assembly of claim 11, wherein a ratio
of the diameter of the diffuser actuator interface to a width of
the seal groove is between 16.71 and 18.11.
13. The cabin air compressor assembly of claim 12, wherein a ratio
of the width of the seal groove to a depth of the seal groove is
between 1.44 and 1.71.
14. The cabin air compressor assembly of claim 8, wherein the
compressor inlet, the body of the cabin air compressor heat
housing, the add-heat valve interface, and the diffuser actuator
interface are formed of a unitary structure.
15. A method of installing a cabin air compressor heat housing in a
cabin air compressor assembly comprising: coupling a cabin air
compressor heat housing to a cabin air compressor housing of the
cabin air compressor assembly, the cabin air compressor heat
housing comprising: a compressor inlet extending from a body of the
cabin air compressor heat housing; an add-heat valve interface
extending transversely from the compressor inlet; and a diffuser
actuator interface having a seal groove formed in the body of the
cabin air compressor heat housing, wherein a ratio of a diameter of
the compressor inlet to a diameter of the diffuser actuator
interface is between 1.90 and 1.98; inserting a sealing member into
the seal groove of the diffuser actuator interface; coupling a
diffuser actuator to the diffuser actuator interface; and
compressing the sealing member in the seal groove between the
diffuser actuator interface and the diffuser actuator.
16. The method of claim 15, wherein a ratio of a diameter of the
add-heat valve interface to the diameter of the diffuser actuator
interface is between 1.40 and 1.42.
17. The method of claim 16, wherein a ratio of the diameter of the
compressor inlet to the diameter of the add-heat valve interface is
between 1.35 and 1.40.
18. The method of claim 15, wherein a ratio of the diameter of the
diffuser actuator interface to a width of the seal groove is
between 16.71 and 18.11.
19. The method of claim 18, wherein a ratio of the width of the
seal groove to a depth of the seal groove is between 1.44 and
1.71.
20. The method of claim 15, wherein the compressor inlet, the body
of the cabin air compressor heat housing, the add-heat valve
interface, and the diffuser actuator interface are formed of a
unitary structure, and further comprising: coupling an add-heat
valve to the add-heat valve interface.
Description
BACKGROUND OF THE INVENTION
[0001] The subject matter disclosed herein relates to aircraft
environmental control. More specifically, the subject disclosure
relates to a heat housing of a cabin air compressor for an aircraft
environmental control system.
[0002] Environmental control systems (ECSs) are utilized on various
types of aircraft for several purposes, such as in cooling systems
for the aircraft. For example, components of an ECS may be utilized
to remove heat from various aircraft lubrication and electrical
systems and/or used to condition aircraft cabin air. A cabin air
conditioner includes one or more cabin air compressors (CACs) which
compress air entering the system, from an outside source or from a
ram air system. The compressed air is delivered to an environmental
control system to bring it to a desired temperature and delivered
to the aircraft cabin. After passing through the cabin, the air is
typically exhausted to the outside.
BRIEF DESCRIPTION OF THE INVENTION
[0003] According to one aspect, a cabin air compressor heat housing
includes a compressor inlet extending from a body of the cabin air
compressor heat housing. The cabin air compressor heat housing also
includes an add-heat valve interface extending transversely from
the compressor inlet. The cabin air compressor heat housing further
includes a diffuser actuator interface formed in the body of the
cabin air compressor heat housing. A ratio of a diameter of the
compressor inlet to a diameter of the diffuser actuator interface
is between 1.90 and 1.98.
[0004] According to another aspect, a cabin air compressor assembly
includes a cabin air compressor heat housing coupled to a cabin air
compressor housing. The cabin air compressor heat housing includes
a compressor inlet extending from a body of the cabin air
compressor heat housing. The cabin air compressor heat housing also
includes an add-heat valve interface extending transversely from
the compressor inlet. The cabin air compressor heat housing further
includes a diffuser actuator interface formed in the body of the
cabin air compressor heat housing. A ratio of a diameter of the
compressor inlet to a diameter of the diffuser actuator interface
is between 1.90 and 1.98.
[0005] According to a further aspect, a method of installing a
cabin air compressor heat housing in a cabin air compressor
assembly includes coupling a cabin air compressor heat housing to a
cabin air compressor housing of the cabin air compressor assembly.
The cabin air compressor heat housing includes a compressor inlet
extending from a body of the cabin air compressor heat housing. The
cabin air compressor heat housing also includes an add-heat valve
interface extending transversely from the compressor inlet. The
cabin air compressor heat housing further includes a diffuser
actuator interface having a seal groove formed in the body of the
cabin air compressor heat housing. A ratio of a diameter of the
compressor inlet to a diameter of the diffuser actuator interface
is between 1.90 and 1.98. The method also includes inserting a
sealing member into the seal groove of the diffuser actuator
interface. A diffuser actuator is coupled to the diffuser actuator
interface. The sealing member is compressed in the seal groove
between the diffuser actuator interface and the diffuser
actuator.
BRIEF DESCRIPTION OF THE DRAWINGS
[0006] FIG. 1 is a partial cross-sectional view of a cabin air
compressor assembly;
[0007] FIG. 2 is a perspective view of a cabin air compressor heat
housing;
[0008] FIG. 3 is a top view of the cabin air compressor heat
housing of FIG. 2;
[0009] FIG. 4 is a partial cross-sectional view of the cabin air
compressor heat housing of FIG. 3; and
[0010] FIG. 5 is a detailed view of a portion of the partial
cross-sectional view of the cabin air compressor heat housing of
FIG. 4.
DETAILED DESCRIPTION OF THE INVENTION
[0011] Shown in FIG. 1 is a cross-sectional view of a cabin air
compressor (CAC) assembly 12, one or more of which may be used in
an environmental control system 100 for an aircraft. The CAC
assembly 12 compresses air flow 14 received at a compressor inlet
16. The CAC assembly 12 is driven by a CAC motor 28 operably
connected to the CAC assembly 12 via a CAC shaft 30. The CAC motor
28 is an electric motor having a rotor 32 rotatably located at the
CAC shaft 30. The CAC motor 28 also includes a stator 36 having a
plurality of stator windings 38 disposed radially outboard of the
rotor 32. The CAC assembly 12 also includes one or more bearings 40
to support rotation of the CAC shaft 30. In exemplary embodiments,
a compressor rotor 62 is operably connected to the CAC shaft 30 and
rotates about an axis X as driven by the CAC motor 28. The
compressor rotor 62 compresses the air flow 14 to provide a
compressed flow 80 in compressor volute 66 of a cabin air
compressor housing 68 and directed to a compressor outlet 78.
[0012] A cabin air compressor heat housing 34 is coupled to the
cabin air compressor housing 68 and includes the compressor inlet
16 configured to receive the air flow 14. The compressor inlet 16
extends from a body 94 of the cabin air compressor heat housing 34.
The cabin air compressor heat housing 34 supports a diffuser
actuator 82 at a diffuser actuator interface 84. The diffuser
actuator 82 further controls the compressed flow 80. As depicted in
FIG. 2, the cabin air compressor heat housing 34 also includes an
add-heat valve interface 86 configured to receive an add-heat valve
88 depicted schematically in FIG. 2. The add-heat valve interface
86 extends transversely from the compressor inlet 16. The add-heat
valve 88 may supply heated air returned from the compressed flow 80
to the compressor inlet 16 to enhance compressor performance of the
CAC assembly 12.
[0013] Also as can be seen in FIG. 2, the diffuser actuator
interface 84 of the cabin air compressor heat housing 34 includes a
seal groove 90 that is configured to receive a sealing member 92,
such as an 0-ring. The diffuser actuator interface 84 and the seal
groove 90 are formed in the body 94 of the cabin air compressor
heat housing 34. The sealing member 92 controls leakage flow
between the diffuser actuator interface 84 and the diffuser
actuator 82. Collectively, the compressor inlet 16, the body 94 of
the cabin air compressor heat housing 34, the add-heat valve
interface 85, and the diffuser actuator interface 84 are formed of
a unitary structure, such as a single casting with machined
details.
[0014] Referring to FIGS. 2-5, in an embodiment, a diameter D1 of
the compressor inlet 16 is about 4.555 inches (11.57 cm). A
diameter D2 of the diffuser actuator interface 84 is about 2.347
inches (5.96 cm). A diameter D3 of the add-heat valve interface 86
is about 3.317 inches (8.43 cm). A width W1 of the seal groove 90
is about 0.135 inches (0.34 cm). A depth D4 of the seal groove 90
is about 0.086 inches (0.22 cm).
[0015] In an embodiment, a ratio of the diameter D1 of the
compressor inlet 16 to the diameter D2 of the diffuser actuator
interface 84 is between 1.90 and 1.98. A ratio of the diameter D1
of the compressor inlet 16 to the diameter D3 of the add-heat valve
interface 86 is between 1.35 and 1.40. A ratio of the diameter D3
of the add-heat valve interface 86 to the diameter D2 of the
diffuser actuator interface 84 is between 1.40 and 1.42. A ratio of
the diameter D2 of the diffuser actuator interface 84 to the width
W1 of the seal groove 90 is between 16.71 and 18.11. A ratio of the
width W1 of the seal groove 90 to the depth D4 of the seal groove
90 is between 1.44 and 1.71.
[0016] A process of installing the cabin air compressor heat
housing 34 in the CAC assembly 12 includes coupling the cabin air
compressor heat housing 34 to the cabin air compressor housing 68
of the CAC assembly 12. Sealing member 92 is inserted into the seal
groove 90 of the diffuser actuator interface 84 of the cabin air
compressor heat housing 34. The diffuser actuator 82 is coupled to
the diffuser actuator interface 84. The sealing member 92 is
compressed in the seal groove 90 between the diffuser actuator
interface 84 and the diffuser actuator 82. The add-heat valve 88 is
coupled to the add-heat valve interface 86 of the cabin air
compressor heat housing 34 to supply heated air returned from the
compressed flow 80 to the compressor inlet 16.
[0017] While the invention has been described in detail in
connection with only a limited number of embodiments, it should be
readily understood that the invention is not limited to such
disclosed embodiments. Rather, the invention can be modified to
incorporate any number of variations, alterations, substitutions or
equivalent arrangements not heretofore described, but which are
commensurate with the spirit and scope of the invention.
Additionally, while various embodiments of the invention have been
described, it is to be understood that aspects of the invention may
include only some of the described embodiments. Accordingly, the
invention is not to be seen as limited by the foregoing
description, but is only limited by the scope of the appended
claims.
* * * * *