Method for forming a coating matrix on a shaft and disk assembly for a turbine
US-2015345504-A1 · Dec 3, 2015 · US
Fastening system for fan and shaft interconnection
US8932022B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8932022-B2 |
| Application number | US-201213365557-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 3, 2012 |
| Priority date | Feb 3, 2012 |
| Publication date | Jan 13, 2015 |
| Grant date | Jan 13, 2015 |
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Abstract
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A fan and shaft assembly for a turbofan gas turbine engine comprises a shaft and a fan. Sets of aligned throughbores are respectively of the shaft and the fan, at a junction between the shaft and the fan. Fastening systems are provided for the sets of aligned throughbores. Each fastening system comprises a sleeve received in one of the sets of aligned throughbores and sized to fit without play in the set of aligned throughbores. A head of the sleeve abuts a surface at the junction between the shaft and the fan. A fastener is inserted in the sleeve and extends beyond both ends of the sleeve to clamp the fan to the shaft, the fastener being loosely received in the sleeve. A method for replacing a component of a fastening system retaining a fan to a shaft is provided as well.
First claim
Opening claim text (preview).
What is claimed is: 1. A fan and shaft assembly for a turbofan gas turbine engine comprising: a shaft; a fan; sets of aligned throughbores respectively of the shaft and the fan, at a junction between the shaft and the fan; fastening systems for the sets of aligned throughbores, each fastening system comprising a sleeve received in one of the sets of aligned throughbores and sized to fit without play in the set of aligned throughbores, a head of the sleeve abutting a surface…
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Classifications
Mechanical Engineering · mapped topic
- F01D5/025Primary
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Cross-Sectional Technologies · mapped topic
Mechanical Engineering · mapped topic
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Frequently asked questions
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- What does patent US8932022B2 cover?
- A fan and shaft assembly for a turbofan gas turbine engine comprises a shaft and a fan. Sets of aligned throughbores are respectively of the shaft and the fan, at a junction between the shaft and the fan. Fastening systems are provided for the sets of aligned throughbores. Each fastening system comprises a sleeve received in one of the sets of aligned throughbores and sized to fit without play …
- Who is the assignee on this patent?
- Ivakitch Richard, Eleftheriou Andreas, Carrieres Alain, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification F01D5/025. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jan 13 2015 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).