Low noise turbine for geared gas turbine engine

US11560849B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-11560849-B2
Application numberUS-202117503814-A
CountryUS
Kind codeB2
Filing dateOct 18, 2021
Priority dateMar 14, 2013
Publication dateJan 24, 2023
Grant dateJan 24, 2023

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A gas turbine engine according to an exemplary aspect of the present disclosure includes, among other things, a propulsor section including a propulsor, a turbine section including a first turbine and a second turbine, a compressor section driven by the turbine section, the compressor section including a first compressor and a second compressor, and a geared architecture driven by the first turbine. The propulsor is driven by the first turbine via the geared architecture. At least one stage of the turbine section includes an array of rotatable blades and an array of vanes. A ratio of the number of vanes to the number blades is greater than or equal to 1.55. A mechanical tip rotational Mach number of the blades is configured to be greater than or equal to 0.5 at an approach speed.

First claim

Opening claim text (preview).

What is claimed is: 1. A gas turbine engine comprising: a propulsor section including a propulsor having a plurality of propulsor blades; a turbine section including a first turbine and a second turbine; a compressor section driven by the turbine section, the compressor section including a first compressor and a second compressor; a geared architecture driven by the first turbine; a first shaft that connects an input of the geared architecture to the first turbine; a sec…

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What does patent US11560849B2 cover?
A gas turbine engine according to an exemplary aspect of the present disclosure includes, among other things, a propulsor section including a propulsor, a turbine section including a first turbine and a second turbine, a compressor section driven by the turbine section, the compressor section including a first compressor and a second compressor, and a geared architecture driven by the first tur…
Who is the assignee on this patent?
Raytheon Tech Corp, Mtu Aero Engines Gmbh
What technology area does this patent fall under?
Primary CPC classification F02C7/24. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Jan 24 2023 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).