公开(公告)号：US10196986B2

公开(公告)日：2019-02-05

申请号：US14845625

申请日：2015-09-04

Applicant: General Electric Company

Inventor： Ning Fang ,  Scott Wolfer ,  Adam Mitchell Record ,  Jonathan K. Remer ,  Daryl Scott Schneider ,  Jacob Patrick Miller ,  Kyle Robert Snow

IPC: F02C7/28 ,  F01D11/02 ,  F01D25/16 ,  F01D25/18 ,  F16J15/3244 ,  F02C3/04 ,  F02C7/06 ,  F16C33/66 ,  F16C33/80 ,  F16J15/16 ,  F16J15/40 ,  F16J15/447

Abstract: In one aspect, the present disclosure is directed to a bearing compartment sealing system including a bearing for supporting a shaft. A housing encloses the bearing and defines a compartment for holding lubricant therein. At least two seals are located between the shaft and the housing. The at least two seals, the housing, and the shaft collectively enclose the compartment. Only one of the at least two seals is a hydrodynamic seal.

公开(公告)号：US08915057B2

公开(公告)日：2014-12-23

申请号：US14237384

申请日：2013-02-09

Applicant: General Electric Company

Inventor： Bala Corattiyil ,  Richard William Albrecht, Jr. ,  Bradley W Fintel ,  Rebecca J. Schmidt ,  Scott Wolfer

IPC: F02C7/06 ,  F02C6/08 ,  F01D5/08 ,  F01D11/04

CPC classification number: F01D11/04 ,  F01D5/082 ,  F02C6/08 ,  F02C7/06 ,  F04D29/321 ,  F05D2260/98 ,  Y02T50/671 ,  Y02T50/676

Abstract: A sump pressurization system for a gas turbine engine comprises a first hollow shaft and a second hollow shaft disposed within the first hollow shaft and defining a cavity therebetween. Each of the first and second hollow shafts has a common axis of rotation. Also included is a source of pressurized air to pressurize the cavity and a plurality of hollow tubes disposed in the cavity. The tubes are oriented perpendicular to the axis of rotation and are connected to and rotatable with the first hollow shaft. A plurality of apertures in the second hollow shaft are in fluid communication with the tubes, such that pressurized air flowing through the tubes passes through the apertures into the interior of the second hollow shaft.

Abstract translation: 用于燃气涡轮发动机的油底壳加压系统包括第一中空轴和设置在第一空心轴内并在其间限定空腔的第二中空轴。 第一和第二空心轴中的每一个具有共同的旋转轴线。 还包括用于对空腔加压的加压空气源和设置在空腔中的多个中空管。 管垂直于旋转轴线定向并且与第一空心轴连接并且可旋转。 第二空心轴中的多个孔与管流体连通，使得流过管的加压空气通过孔进入第二空心轴的内部。

公开(公告)号：US20190226585A1

公开(公告)日：2019-07-25

申请号：US15879535

申请日：2018-01-25

Applicant: General Electric Company

Inventor： Kyle Robert Snow ,  Scott Wolfer ,  Daniel Scott Tomasic

IPC: F16J15/34 ,  F02C7/28

Abstract: Sealing assemblies and systems and their assembly methods are provided. For example, a seal assembly is provided for use between an inner shaft and an outer shaft that are rotatable about a common axis. The seal assembly comprises a first end ring having an aft face; a second end ring positioned aft of the first end ring and having a forward face; a first hydrodynamic portion defined on the aft face of the first end ring; a second hydrodynamic portion defined on the forward face of the second end ring. A seal element is disposed between the first end ring and the second end ring such that the seal element is positioned between the first hydrodynamic portion and the second hydrodynamic portion.

公开(公告)号：US20140345246A1

公开(公告)日：2014-11-27

申请号：US14237384

申请日：2013-02-09

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Bala Corattiyil ,  Richard William Albrecht, JR. ,  Bradley W Fintel ,  Rebecca J. Schmidt ,  Scott Wolfer

IPC: F01D11/04

CPC classification number: F01D11/04 ,  F01D5/082 ,  F02C6/08 ,  F02C7/06 ,  F04D29/321 ,  F05D2260/98 ,  Y02T50/671 ,  Y02T50/676

Abstract: A sump pressurization system for a gas turbine engine comprises a first hollow shaft and a second hollow shaft disposed within the first hollow shaft and defining a cavity therebetween. Each of the first and second hollow shafts has a common axis of rotation. Also included is a source of pressurized air to pressurize the cavity and a plurality of hollow tubes disposed in the cavity. The tubes are oriented perpendicular to the axis of rotation and are connected to and rotatable with the first hollow shaft. A plurality of apertures in the second hollow shaft are in fluid communication with the tubes, such that pressurized air flowing through the tubes passes through the apertures into the interior of the second hollow shaft.

Abstract translation: 用于燃气涡轮发动机的油底壳加压系统包括第一中空轴和设置在第一空心轴内并在其间限定空腔的第二中空轴。 第一和第二空心轴中的每一个具有共同的旋转轴线。 还包括用于对空腔加压的加压空气源和设置在空腔中的多个中空管。 管垂直于旋转轴线定向并且与第一空心轴连接并且可旋转。 第二空心轴中的多个孔与管流体连通，使得流过管的加压空气通过孔进入第二空心轴的内部。