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：US20180094543A1

公开(公告)日：2018-04-05

申请号：US15721986

申请日：2017-10-02

Applicant: General Electric Company

Inventor： Ning Fang ,  Gary Paul Moscarino ,  Bala Corattiyil ,  Ramon Themudo ,  Prasad Laxman Kane ,  James Mathew Suding

IPC: F01D25/18

CPC classification number: F01D25/18 ,  F02C7/06 ,  F05D2260/40311 ,  F05D2260/98 ,  F05D2270/17 ,  F16N2210/02

Abstract: An apparatus and system for injecting fluid into a boundary layer of a flow of fluid are provided. The boundary layer injection insert assembly includes an insert body and a central bore extending through the insert body from an inlet opening positioned at a first end to an outlet opening positioned at a second end of the insert body opposite the first end. The insert body is approximately cylindrical about a longitudinal axis and includes a thickness in a radial direction orthogonal to the longitudinal axis. The first end includes a plurality of injection holes extending through the thickness for a first distance, the first distance being less than the length. The boundary layer injection insert assembly also includes an annular spacer at least partially surrounding the second end and including a radially inner surface and a radially outer surface spaced apart by a thickness of the annular spacer.

公开(公告)号：US10648365B2

公开(公告)日：2020-05-12

申请号：US14962217

申请日：2015-12-08

Applicant: General Electric Company

Inventor： Kyle Robert Snow ,  Brandon Wayne Miller ,  Duane Howard Anstead ,  Jonothan Allen Scheetz ,  Mohammed El Hacin Sennoun ,  Ning Fang

IPC: F01D25/18 ,  F01D25/16 ,  F01D25/12 ,  F01D25/20 ,  F02C7/28 ,  F02C3/04 ,  F02C7/06

Abstract: A gas turbine engine having a core engine. The core engine includes an inlet, a compressor section, a combustion section, a turbine section, and an exhaust. The gas turbine engine also includes a bearing sump arranged in the core engine for containing lubrication, the bearing sump and lubrication having an operational range between at least about 0° F. and about 550° F.

公开(公告)号：US10544737B2

公开(公告)日：2020-01-28

申请号：US15335795

申请日：2016-10-27

Applicant: GENERAL ELECTRIC COMPANY

Inventor： William Joseph Bowden ,  Ning Fang ,  Guohua Zhong ,  Bartosz Karbowski

IPC: F02C7/24 ,  F02C6/08 ,  F02C9/18 ,  F02K3/06

Abstract: A turbofan engine includes a core engine, a fan, a fan bypass duct partially surrounding the core engine and the fan, and a bleed system. The bleed system includes a first bleed circuit configured to bleed pressurized air from the core engine and channel the flow to a first circuit of a heat exchanger, and a second bleed circuit configured to bleed fan air from the fan bypass duct and channel the flow to a second circuit of the heat exchanger. The second bleed circuit includes a bleed duct including a duct inlet and a duct outlet coupled in flow communication with the heat exchanger through a valve. The bleed duct also includes an acoustic suppression conduit extending from the bleed duct upstream of the valve to the fan bypass duct and sized to suppress pressure oscillations inside the second bleed circuit when the valve is at least partially closed.