Foundry core assembly for manufacturing a turbomachine blade, associated method of manufacturing a blade and associated blade
US-2015132139-A1 · May 14, 2015 · US
Angled tip rods
US11143035B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11143035-B2 |
| Application number | US-201916654674-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 16, 2019 |
| Priority date | Oct 16, 2019 |
| Publication date | Oct 12, 2021 |
| Grant date | Oct 12, 2021 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A core is provided for fabricating a blade to include an airfoil. The airfoil includes pressure and suction surfaces, leading and trailing edges extending along the pressure and suction surfaces and a tip shelf with a first sweep configuration and a wall. The core includes channel sections configured to form internal channels within the airfoil by casting processes and tip rods extending from respective portions of the channel sections proximate to a tip shelf location. The respective portions of the channel sections have a second sweep configuration corresponding to the first sweep configuration. The tip rods are configured to extend through the wall at an angle of about 5-12 degrees inclusive relative to a normal angle of the wall during the casting processes to form through-holes angled at about 5-12 degrees inclusive in the wall.
First claim
Opening claim text (preview).
What is claimed is: 1. A core for fabricating a blade to comprise an airfoil, the airfoil comprising pressure and suction surfaces, leading and trailing edges extending along the pressure and suction surfaces and a tip shelf with a first sweep configuration and a wall, the core comprising: channel sections configured to form internal channels within the airfoil by casting processes; and tip rods extending from respective portions of the channel sections proximate to a tip shelf location, wherein the respective portions of the channel sections having a second sweep configuration corresponding to the first sweep configuration and the tip rods being configured to extend through the wall at an angle of about 5-12 degrees inclusive relative to a normal angle of the wall during the casting processes to form through-holes angled at about 5-12 degrees inclusive in the wall. 2. The core according to claim 1 , wherein the tip rods comprise at least one or more of alumina and quartz. 3. The core according to claim 1 , wherein the angle is 5 degrees relative to the normal angle of the wall. 4. The core according to claim 1 , wherein the channel sections comprise a bumper proximate to an internal end of at least one of the tip rods. 5. The core according to claim 1 , further comprising a plenum body to which external ends of the tip rods are coupled.
Assignees
Inventors
Classifications
Multipart cores · CPC title
Efficient propulsion technologies, e.g. for aircraft · CPC title
by casting · CPC title
in gas turbines · CPC title
Tools; Devices not mentioned before for moulding · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US11143035B2 cover?
- A core is provided for fabricating a blade to include an airfoil. The airfoil includes pressure and suction surfaces, leading and trailing edges extending along the pressure and suction surfaces and a tip shelf with a first sweep configuration and a wall. The core includes channel sections configured to form internal channels within the airfoil by casting processes and tip rods extending from r…
- Who is the assignee on this patent?
- United Technologies Corp, Raytheon Tech Corp
- What technology area does this patent fall under?
- Primary CPC classification F01D5/187. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Oct 12 2021 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).