Fuel nozzle
US-10364988-B2 · Jul 30, 2019 · US
Thermally compliant additively manufactured fuel injector
US10488047B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10488047-B2 |
| Application number | US-201515112985-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 14, 2015 |
| Priority date | Jan 24, 2014 |
| Publication date | Nov 26, 2019 |
| Grant date | Nov 26, 2019 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
One embodiment includes a fuel injector. The fuel injector assembly comprises a conduit for conveying fuel from a fuel inlet to a nozzle. The conduit is located in a support, with the conduit, the nozzle, and the support being a single unitary piece. A thermally compliant feature is located at the nozzle which allows the fuel injector to adjust for differential thermal expansion.
First claim
Opening claim text (preview).
The invention claimed is: 1. A fuel injector comprising: a conduit for conveying fuel from a fuel inlet to a nozzle; a support in which the conduit is located; a heat shield on an exterior of the support, wherein the conduit, the nozzle, the support, and the heat shield are a single unitary piece; and a thermally compliant feature at the nozzle which allows the fuel injector to adjust for differential thermal expansion; wherein the thermally compliant feature comprises a gap in the nozzle, wherein the gap axially separates the heat shield and a nozzle tip structure along a fluid axis. 2. The fuel injector of claim 1 , wherein the single unitary piece is made through an additive manufacturing process. 3. The fuel injector of claim 1 , wherein the conduit comprises a primary fuel circuit encased in a secondary fuel circuit. 4. The fuel injector of claim 1 , wherein the fuel injector is at least partially made of nickel, Waspaloy, Stellite, titanium, steel, stainless steel, cobalt, chrome, or alloys thereof. 5. A method of making a fuel injector, the method comprising: building the fuel injector layer by layer through use of additive manufacturing to contain a conduit, a nozzle, and a support; wherein the conduit is disposed inside of the support and conveys fuel from a fuel inlet to the nozzle; building a heat shield on an exterior of the support, wherein the conduit, the nozzle, the support, and the heat shield are a single unitary piece; and building a thermally compliant feature at the nozzle as part of the single unitary piece which allows the fuel injector to adjust for differential thermal expansion, wherein the thermally compliant feature comprises a gap in the nozzle and wherein the gap axially separates the heat shield and a nozzle tip structure along a fluid axis. 6. The method of claim 5 , wherein the conduit is built to comprise a primary fuel circuit encased in a secondary fuel circuit.
Assignees
Inventors
Classifications
Manufacturing combustion chamber liners or subparts · CPC title
Burner manufacture specifications · CPC title
Means for protecting parts of the burner, e.g. ceramic lining outside of the flame tube · CPC title
Metals, alloys or intermetallic compounds · CPC title
- F23R3/28Primary
characterised by the fuel supply (burners F23D) · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US10488047B2 cover?
- One embodiment includes a fuel injector. The fuel injector assembly comprises a conduit for conveying fuel from a fuel inlet to a nozzle. The conduit is located in a support, with the conduit, the nozzle, and the support being a single unitary piece. A thermally compliant feature is located at the nozzle which allows the fuel injector to adjust for differential thermal expansion.
- Who is the assignee on this patent?
- United Technologies Corp
- What technology area does this patent fall under?
- Primary CPC classification F23R3/28. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Nov 26 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 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).