公开(公告)号：US09835089B2

公开(公告)日：2017-12-05

申请号：US14302028

申请日：2014-06-11

Applicant: General Electric Company ,  ExxonMobil Upstream Research Company

Inventor： Baifang Zuo ,  Willy Steve Ziminsky ,  Christian Xavier Stevenson ,  Ilya Aleksandrovich Slobodyanskiy

IPC: F02C7/22 ,  F23R3/28 ,  F02C3/04 ,  F02C3/34 ,  F23R3/00 ,  F23R3/12 ,  F23R3/46

CPC classification number: F02C7/222 ,  F02C3/04 ,  F02C3/34 ,  F02C7/22 ,  F23R3/005 ,  F23R3/12 ,  F23R3/28 ,  F23R3/46 ,  Y02E20/16 ,  Y02T50/675

Abstract: A system includes an oxidant compressor and a gas turbine engine turbine, which includes a turbine combustor, a turbine, and an exhaust gas compressor. The turbine combustor includes a plurality of diffusion fuel nozzles, each including a first oxidant conduit configured to inject a first oxidant through a plurality of first oxidant openings configured to impart swirling motion to the first oxidant in a first rotational direction, a first fuel conduit configured to inject a first fuel through a plurality of first fuel openings configured to impart swirling motion to the first fuel in a second rotational direction, and a second oxidant conduit configured to inject a second oxidant through a plurality of second oxidant openings configured to impart swirling motion to the second oxidant in a third rotational direction. The first fuel conduit surrounds the first oxidant conduit and the second oxidant conduit surrounds the first fuel conduit.

公开(公告)号：US09644845B2

公开(公告)日：2017-05-09

申请号：US14170710

申请日：2014-02-03

Applicant: General Electric Company

Inventor： Sarah Lori Crothers ,  Christian Xavier Stevenson ,  William Francis Carnell, Jr.

IPC: F23R3/34

CPC classification number: F23R3/34 ,  F23R2900/00014

Abstract: A system and method for reducing modal coupling of combustion dynamics among multiple combustors are provided. Each combustor may include one or more fuel nozzles axially aligned with a combustion chamber; one or more fuel injectors downstream from the fuel nozzles; and a set of flow openings integrated with the combustor. The fuel injectors provide fluid communication through a liner that circumferentially surrounds each combustion chamber. The flow rate of compressed working fluid diverted through the fuel injectors may be different and/or variable between the combustors to produce different combustion instability frequencies.

公开(公告)号：US20150285505A1

公开(公告)日：2015-10-08

申请号：US14248194

申请日：2014-04-08

Applicant: General Electric Company

Inventor： Christian Xavier Stevenson ,  Sarah Lori Crothers

IPC: F23R3/34

CPC classification number: F23R3/34 ,  F05D2260/964 ,  F23M20/005 ,  F23R3/286 ,  F23R2900/00013 ,  F23R2900/03342

Abstract: A gas turbine engine system including a first combustor having a first fuel nozzle and a second combustor having a second fuel nozzle. The system further includes a first acoustic adjuster having a first drive coupled to a first piston with a first fuel orifice. The first piston is disposed along a first fuel passage leading to the first fuel nozzle of the first combustor. The system further includes a second acoustic adjuster having a second drive coupled to a second piston with a second fuel orifice. The second piston is disposed along a second fuel passage leading to the second fuel nozzle of the second combustor.

Abstract translation: 一种燃气涡轮发动机系统，包括具有第一燃料喷嘴的第一燃烧器和具有第二燃料喷嘴的第二燃烧器。 该系统还包括第一声学调节器，其具有联接到具有第一燃料孔口的第一活塞的第一驱动器。 第一活塞沿着通向第一燃烧器的第一燃料喷嘴的第一燃料通道设置。 该系统还包括第二声调节器，其具有与第二燃料孔连接到第二活塞的第二驱动器。 第二活塞沿着通向第二燃烧器的第二燃料喷嘴的第二燃料通道设置。

公开(公告)号：US20140137561A1

公开(公告)日：2014-05-22

申请号：US13680379

申请日：2012-11-19

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Sarah Lori Crothers ,  Willy Steve Ziminsky ,  Christian Xavier Stevenson

IPC: F23R3/28

CPC classification number: F23R3/28 ,  F02C9/28

Abstract: A system for reducing modal coupling of combustion dynamics includes a plurality of combustors, and at least one fuel injector in each of the plurality of combustors. The system also includes structure for dithering a combustion instability frequency in at least one combustor in the plurality of combustors. A method for reducing modal coupling of combustion dynamics includes flowing a compressed working fluid at a temperature to a plurality of combustors and flowing a fuel to at least one fuel injector in each of the plurality of combustors. The method further includes dithering at least one of the temperature of the compressed working fluid flowing to the plurality of combustors or the fuel flow to the at least one fuel injector in at least one combustor in the plurality of combustors.

Abstract translation: 用于减少燃烧动力学模态耦合的系统包括多个燃烧器，以及多个燃烧器中的每一个中的至少一个燃料喷射器。 该系统还包括用于使多个燃烧器中的至少一个燃烧器中的燃烧不稳定频率抖动的结构。 一种用于减少燃烧动力学的模态耦合的方法包括将压缩的工作流体在一定温度下流动到多个燃烧器，并将燃料流动到多个燃烧器中的每一个中的至少一个燃料喷射器。 该方法还包括使在多个燃烧器中的至少一个燃烧器中流动到多个燃烧器中的压缩工作流体的温度或至少一个燃料喷射器的燃料流中的至少一个抖动。