Three spool engine bearing configuration

US9506402B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9506402-B2
Application numberUS-201113193757-A
CountryUS
Kind codeB2
Filing dateJul 29, 2011
Priority dateJul 29, 2011
Publication dateNov 29, 2016
Grant dateNov 29, 2016

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  2. Abstract

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  5. First independent claim

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Abstract

Official abstract text for this publication.

A gas turbine engine includes a core section having a low spool, intermediate spool and a high spool that rotate about a common axis. The intermediate spool is supported at an aft position by an inter-shaft bearing arrangement on the low spool. The low spool is supported for rotation in an aft position by an aft roller bearing supported on a turbine exhaust case of the gas turbine engine. The high spool is supported by a high spool aft roller bearing disposed within a high spool bearing compartment. The high spool bearing compartment is positioned within a radial space between the combustor and the axis.

First claim

Opening claim text (preview).

What is claimed is: 1. A gas turbine engine assembly comprising: a core section including a compressor, a combustor and a turbine supported along an axis; a low spool supported for rotation about the axis, the low spool including a low turbine section; an intermediate spool including an intermediate turbine section axially forward of the low turbine section, the intermediate turbine section including all stages rotatable with the intermediate spool, the intermediate spool supp…

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What does patent US9506402B2 cover?
A gas turbine engine includes a core section having a low spool, intermediate spool and a high spool that rotate about a common axis. The intermediate spool is supported at an aft position by an inter-shaft bearing arrangement on the low spool. The low spool is supported for rotation in an aft position by an aft roller bearing supported on a turbine exhaust case of the gas turbine engine. The h…
Who is the assignee on this patent?
Suciu Gabriel L, Merry Brian D, United Technologies Corp
What technology area does this patent fall under?
Primary CPC classification F02C7/06. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Nov 29 2016 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).