Auxiliary power unit impeller blade
US-10151321-B2 · Dec 11, 2018 · US
Impellers for engine mounted boost stage pumps
US10323648B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10323648-B2 |
| Application number | US-201715482278-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 7, 2017 |
| Priority date | Apr 7, 2017 |
| Publication date | Jun 18, 2019 |
| Grant date | Jun 18, 2019 |
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- Title
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- Abstract
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Abstract
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A boost pump includes a boost cover and a main pump housing engaged opposite to the boost cover with an impeller rotatably engaged between the boost cover and main pump housing. The impeller includes an inducer section comprising a hub including a plurality of axial blades extended therefrom, each of the plurality of blades including a root, a tip, first and second surfaces, wherein the each of the first and second surfaces is defined in TABLE 1. The impeller includes an impeller section comprising a shroud extending from the hub including a plurality of radial blades extended therefrom. Each of the plurality of blades can include including a root, a tip, and opposed pressure and suction sides extending from the root to the tip, wherein the each of the pressure and suction sides is a surface defined in at least one of TABLES 2-4.
First claim
Opening claim text (preview).
What is claimed is: 1. An impeller for a jet engine mounted boost fuel pump comprising: an inducer section with a hub including a plurality of blades extended therefrom, each of the plurality of blades including a root, a tip, first and second surfaces, wherein the each of the first and second surfaces is defined as a set X, Y, and Z Cartesian coordinates set out in TABLE 1; and an impeller section with a hub including a plurality of blades extended therefrom, each of the plurality of blades including a root, a tip, and opposed pressure and suction sides extending from the root to the tip, wherein the each of the pressure and suction sides is a surface defined as a set X, Y, and Z Cartesian coordinates set out in at least one of TABLES 2 through 4. 2. The impeller pump as recited in claim 1 , wherein the plurality of blades of the impeller includes a set of long blades, the pressure and suction sides of which are defined by TABLE 2. 3. The impeller pump as recited in claim 1 , wherein the plurality of blades of the impeller includes a set of primary splitter blades, the pressure and suction sides of which are defined by TABLE 3. 4. The impeller pump as recited in claim 1 , wherein the plurality of blades of the impeller includes a set of secondary splitter blades, the pressure and suction sides of which are defined by TABLE 4. 5. The impeller pump as recited in claim 1 , wherein the plurality of blades of the inducer are axial blades. 6. The impeller pump as recited in claim 1 , wherein the plurality of blades of the impeller are radial blades. 7. The impeller pump as recited in claim 1 , wherein the plurality of blades of the impeller section includes a set of long blades, the pressure and suction sides of which are defined by TABLE 2, wherein the plurality of blades of the impeller includes a set of primary splitter blades, the pressure and suction sides of which are defined by TABLE 3, and wherein the plurality of blades of the impeller includes a set of secondary splitter blades, the pressure and suction sides of which are defined by TABLE 4. 8. The impeller pump as recited in claim 7 , wherein the plurality of blades of the impeller are arranged in a repeating, circumferential pattern in this order: secondary splitter blade, primary splitter blade, long blade going clockwise as viewed toward the inducer. 9. A boost pump comprising: a boost cover and a main pump housing engaged opposite to the boost cover with an impeller rotatably engaged between the boost cover and main pump housing, wherein the impeller includes: an inducer section with a hub including a plurality of blades extended therefrom, each of the plurality of blades including a root, a tip, first and second surfaces, wherein the each of the first and second surfaces is defined as a set X, Y, and Z Cartesian coordinates set out in TABLE 1; and an impeller section including a plurality of blades extended from the hub, each of the plurality of blades including a root, a tip, and opposed pressure and suction sides extending from the root to the tip, wherein the each of the pressure and suction sides is a surface defined as a set X, Y, and Z Cartesian coordinates set out in at least one of TABLES 2-4. 10. The boost pump as recited in claim 9 , wherein the plurality of blades of the impeller includes a set of long blades, the pressure and suction sides of which are defined by TABLE 2. 11. The boost pump as recited in claim 9 , wherein the plurality of blades of the impeller includes a set of primary splitter blades, the pressure and suction sides of which are defined by TABLE 3. 12. The boost pump as recited in claim 9 , wherein the plurality of blades of the impeller includes a set of secondary splitter blades, the pressure and suction sides of which are defined by TABLE 4. 13. The boost pump as recited in claim 9 , wherein the plurality of blades of the inducer are axial blades. 14. The boost pump as recited in claim 9 , wherein the plurality of blades of the impeller are radial blades. 15. A method of forming an impeller for a boost pump comprising: forming an impeller including an inducer section with a hub including a plurality of blades extended therefrom, each of the plurality of blades including a root, a tip, first and second surfaces, wherein the each of the first and second surfaces is defined as a set X, Y, and Z Cartesian coordinates set out in TABLE 1, and an impeller section including a plurality of blades extended from the hub, each of the plurality of blades including a root, a tip, and opposed pressure and suction sides extending from the root to the tip, wherein the each of the pressure and suction sides is a surface defined as a set X, Y, and Z Cartesian coordinates set out in at least one of TABLES 2-4. 16. The method as recited in claim 15 , wherein the forming includes machining the blades. 17. The method as recited in claim 15 , wherein forming includes casting the blades.
Assignees
Inventors
Classifications
especially adapted for liquid pumps · CPC title
Geometry, shape · CPC title
Fuel supply systems · CPC title
given by a set or table of xyz-coordinates · CPC title
Cross-Sectional Technologies · mapped topic
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Frequently asked questions
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- What does patent US10323648B2 cover?
- A boost pump includes a boost cover and a main pump housing engaged opposite to the boost cover with an impeller rotatably engaged between the boost cover and main pump housing. The impeller includes an inducer section comprising a hub including a plurality of axial blades extended therefrom, each of the plurality of blades including a root, a tip, first and second surfaces, wherein the each of…
- Who is the assignee on this patent?
- Hamilton Sundstrand Corp
- What technology area does this patent fall under?
- Primary CPC classification F04D1/025. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jun 18 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).