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US-2024392684-A1 · Nov 28, 2024 · US
Turbo-machine impeller manufacturing
US9903207B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9903207-B2 |
| Application number | US-201314380160-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 20, 2013 |
| Priority date | Feb 23, 2012 |
| Publication date | Feb 27, 2018 |
| Grant date | Feb 27, 2018 |
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- Title
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Abstract
Official abstract text for this publication.
A method of manufacturing a turbo-machine impeller, which includes a hub and a plurality of blades, using powder material in an additive-manufacturing process. The method includes: applying energy to the powder material by way of a high energy source, and solidifying the powder material. At least one bulky portion of the hub is irradiated such that the powder material solidifies in a lattice structure surrounded by an outer solid skin structure enclosing the lattice structure.
First claim
Opening claim text (preview).
What is claimed is: 1. A turbo-machine impeller, comprising: a hub and an impeller shroud comprising a plurality of solidified layers formed by solidified powder material, wherein at least one radially inner portion of the hub and at least one radially inner portion of the impeller shroud comprise a lattice structure surrounded by a solid skin structure. 2. The turbo-machine impeller according to claim 1 , wherein the lattice structure is located in an impeller foot of the hub. 3. The turbo-machine impeller according to claim 1 , wherein the lattice structure is located in an impeller eye. 4. The turbo-machine impeller according to claim 1 , wherein the solid skin structure has at least one aperture, and the lattice structure is in fluid communication with the outer surface of the turbo-machine impeller through the aperture. 5. The turbo-machine impeller according to claim 4 , wherein the solid skin structure comprises two apertures, and the lattice structure surrounded by the solid skin structure is in fluid communication with the outer surface of the turbo-machine impeller through the two apertures. 6. The turbo-machine impeller according to claim 1 , made of a material selected from the group comprising: titanium alloys, stellite, steel, stainless steel, austenitic nickel-chromium-based super-alloys, steel 17-4. 7. The turbo-machine impeller according to claim 1 , made of Ti6Al4V.
Assignees
Inventors
Classifications
- F01D5/18Primary
Hollow blades, {i.e. blades with cooling or heating channels or cavities (structure of hollow blades in general F01D5/147)}; Heating, heat-insulating or cooling means on blades · CPC title
- B22F5/009Primary
of turbine components other than turbine blades (of turbine blades B22F5/04) · CPC title
Scanners · CPC title
characterised by the configuration of the radiation means · CPC title
characterised by the type, e.g. laser or electron beam · CPC title
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- What does patent US9903207B2 cover?
- A method of manufacturing a turbo-machine impeller, which includes a hub and a plurality of blades, using powder material in an additive-manufacturing process. The method includes: applying energy to the powder material by way of a high energy source, and solidifying the powder material. At least one bulky portion of the hub is irradiated such that the powder material solidifies in a lattice st…
- Who is the assignee on this patent?
- Nuovo Pignone Srl, Nuovo Pignone Srl
- What technology area does this patent fall under?
- Primary CPC classification F01D5/18. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Feb 27 2018 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).