公开(公告)号：US09835037B2

公开(公告)日：2017-12-05

申请号：US14746426

申请日：2015-06-22

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Trevor Goerig ,  Darek Tomasz Zatorski ,  Tsuguji Nakano ,  Patrick John Lonneman

IPC: F02C3/04 ,  F01D7/00 ,  F04D27/02 ,  F04D29/32 ,  F01D5/02 ,  F01D5/30 ,  F01D15/00 ,  F01D25/24 ,  F02K1/66 ,  F01D7/02

CPC classification number: F01D7/00 ,  F01D5/02 ,  F01D5/3007 ,  F01D7/02 ,  F01D15/00 ,  F01D25/24 ,  F02C3/04 ,  F02K1/66 ,  F04D27/0246 ,  F04D29/323 ,  F05D2220/32 ,  F05D2220/36 ,  F05D2240/20 ,  F05D2240/35 ,  Y02T50/671 ,  Y02T50/673

Abstract: An actuation assembly for a variable pitch fan for a gas turbine engine is provided. The actuation assembly generally includes a plurality of fan blades, a scheduling ring, and a plurality of linkage arms. The plurality of fan blades are rotatably coupled to a disk and extend radially therefrom. The scheduling ring is rotatable relative to the disk and has a plurality of slots. Each of the plurality of linkage arms are operatively coupled to one of the plurality of fan blades and to one of the plurality of slots. Each of the plurality of fan blades rotate according to a blade pitch schedule defined by the slot to which it is operatively coupled, and at least two of the plurality of slots define different blade pitch schedules.

公开(公告)号：US20220259985A1

公开(公告)日：2022-08-18

申请号：US17176106

申请日：2021-02-15

Applicant: General Electric Company

Inventor： Timothy Richard DePuy ,  Trevor Goerig ,  Jeffrey D. Clements ,  Syed Arif Khalid

IPC: F01D15/12 ,  F02C6/20

Abstract: A turbomachinery engine includes an unducted rotor assembly, a low-pressure turbine, a low-pressure shaft, a gearbox, and an engine correlation parameter. The unducted rotor assembly includes a plurality of rotor blades arranged in a single row and defining a blade diameter. The gearbox includes an input, an output, and a gear ratio. The input of the gearbox is coupled to the low-pressure shaft (which is coupled to the LPT), and the output of the gearbox is coupled to the unducted rotor assembly. The engine correlation parameter is greater than 0.17 and less than 0.83. The engine correlation parameter equals D/N/GR, where D is the blade tip diameter measured in feet, N is the stage count of the low-pressure turbine, and GR is the gear ratio of the gearbox. The unducted propulsor assembly optionally includes a disk loading within a range of 60-180 HP/ft2 at a takeoff flight condition.

公开(公告)号：US20160369639A1

公开(公告)日：2016-12-22

申请号：US14746426

申请日：2015-06-22

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Trevor Goerig ,  Darek Tomasz Zatorski ,  Tsuguji Nakano ,  Patrick John Lonneman

IPC: F01D7/00 ,  F01D15/00 ,  F01D5/30 ,  F02C3/04 ,  F01D5/02 ,  F01D25/24

CPC classification number: F01D7/00 ,  F01D5/02 ,  F01D5/3007 ,  F01D7/02 ,  F01D15/00 ,  F01D25/24 ,  F02C3/04 ,  F02K1/66 ,  F04D27/0246 ,  F04D29/323 ,  F05D2220/32 ,  F05D2220/36 ,  F05D2240/20 ,  F05D2240/35 ,  Y02T50/671 ,  Y02T50/673

Abstract: An actuation assembly for a variable pitch fan for a gas turbine engine is provided. The actuation assembly generally includes a plurality of fan blades, a scheduling ring, and a plurality of linkage arms. The plurality of fan blades are rotatably coupled to a disk and extend radially therefrom. The scheduling ring is rotatable relative to the disk and has a plurality of slots. Each of the plurality of linkage arms are operatively coupled to one of the plurality of fan blades and to one of the plurality of slots. Each of the plurality of fan blades rotate according to a blade pitch schedule defined by the slot to which it is operatively coupled, and at least two of the plurality of slots define different blade pitch schedules.

Abstract translation: 提供了一种用于燃气涡轮发动机的变桨距风扇的致动组件。 致动组件通常包括多个风扇叶片，调度环和多个连杆臂。 多个风扇叶片可旋转地联接到盘并从其径向延伸。 调度环可相对于盘旋转并具有多个槽。 多个联动臂中的每一个可操作地联接到多个风扇叶片中的一个和多个狭槽中的一个。 多个风扇叶片中的每一个根据由其可操作地联接的狭槽限定的叶片间距调度旋转，并且多个狭槽中的至少两个限定不同的叶片间距调度。

公开(公告)号：US20230150681A1

公开(公告)日：2023-05-18

申请号：US17526383

申请日：2021-11-15

Applicant: General Electric Company

Inventor： Kishore Ramakrishnan ,  Trevor Howard Wood ,  Stefan Joseph Cafaro ,  Robert Jon McQuiston ,  David Marion Ostdiek ,  Timothy Richard DePuy ,  Trevor Goerig ,  Eric Richard Westervelt

IPC: B64D31/06 ,  B64D27/12

CPC classification number: B64D31/06 ,  B64D27/12 ,  B64C2220/00

Abstract: Systems and methods for controlling an unducted turbofan engine to limit noise. The unducted turbofan engine may include an unducted fan drivingly coupled with a low-pressure turbine and a plurality of unducted outlet guide vanes. The unducted fan may include a plurality of fan blades and a pitch angle of the fan blades may be variable. A pitch angle of the unducted outlet guide vanes may be variable. A controller is configured to control the engine to limit noise based on a noise sensitive condition.