公开(公告)号：US20160123172A1

公开(公告)日：2016-05-05

申请号：US14897823

申请日：2014-06-04

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Bhaskar Nanda MONDAL ,  John Joseph RAHAIM ,  Thomas MONIZ ,  Steven A. ROSS ,  Joel KIRK ,  Scott HUNTER ,  Daniel FUSINATO

IPC: F01D11/18 ,  F01D25/00 ,  F01D11/02

CPC classification number: F01D11/18 ,  F01D11/025 ,  F01D25/005 ,  F05D2240/11 ,  F05D2240/55 ,  F05D2260/30 ,  F05D2300/5021 ,  F05D2300/6033 ,  Y02T50/672

Abstract: A passive clearance control limits thermal expansion between stator components relative to rotor components. A control ring controls clearance in a passive manner and is located on or adjacent to stationary components which thermally expand during engine operation. The control ring is formed of material having low coefficient of thermal expansion such as CMCs (Ceramic Matrix Composites) and therefore limits, inhibits or restrains expansion of the adjacent stator components as temperatures increase. Limiting expansion of the stator component reduces rotor/stator clearances and limits parasitic leakage of fluid along the flowpath through the engine core.

Abstract translation: 被动间隙控制限制定子部件之间相对于转子部件的热膨胀。 控制环以被动的方式控制间隙，并且位于或邻近在发动机操作期间热膨胀的静止部件。 控制环由具有低热膨胀系数的材料（例如CMC（陶瓷基复合材料））形成，因此在温度升高时限制，抑制或抑制相邻的定子部件的膨胀。 定子组件的极限膨胀减小了转子/定子间隙，并限制了流体沿着通过发动机芯的流路的寄生泄漏。

公开(公告)号：US20190136714A1

公开(公告)日：2019-05-09

申请号：US16236018

申请日：2018-12-28

Applicant: General Electric Company

Inventor： John Joseph RAHAIM ,  Daniel John FUSINATO ,  Scott David HUNTER ,  Joel Francis KIRK ,  Michael Robert MELZAK ,  Curtis Walton STOVER

IPC: F01D25/12 ,  F02C7/12 ,  F01D5/02 ,  F01D5/08 ,  F01D25/14

Abstract: A flow transfer apparatus for transferring cooling flow from a primary gas flowpath to a turbine rotor. The apparatus includes a first supply plenum communicating with the primary gas flowpath and first inducers, the first inducers configured to accelerate a first fluid flow from the first supply plenum and discharge it toward the rotor with a tangential velocity; a second supply plenum communicating with the primary gas flowpath and second inducers, the second inducers configured to accelerate a second fluid flow from the second supply plenum towards the rotor with a tangential velocity; and a cooling modulation valve operable to selectively permit or block the second fluid flow from the primary gas flowpath to the second supply plenum. The valve includes a flow control structure disposed in the primary gas flowpath and an actuation structure extending to a location radially outside of a casing defining the primary gas flowpath.

公开(公告)号：US20160040552A1

公开(公告)日：2016-02-11

申请号：US14777331

申请日：2014-03-14

Applicant: GENERAL ELECTRIC COMPANY

Inventor： John Joseph RAHAIM ,  Daniel John FUSINATO ,  Scott David HUNTER ,  Joel Francis KIRK ,  Michael Robert MELZAK ,  Curtis Walton STOVER

IPC: F01D25/12 ,  F01D5/02 ,  F01D25/14

CPC classification number: F01D25/12 ,  F01D5/02 ,  F01D5/082 ,  F01D25/14 ,  F02C7/125 ,  F05D2220/32 ,  F05D2240/24 ,  F05D2260/20 ,  F05D2270/3062 ,  F05D2270/62 ,  Y02T50/676

Abstract: A flow transfer apparatus for transferring cooling flow from a primary gas flowpath to a turbine rotor. The apparatus includes a first supply plenum communicating with the primary gas flowpath and first inducers, the first inducers configured to accelerate a first fluid flow from the first supply plenum and discharge it toward the rotor with a tangential velocity; a second supply plenum communicating with the primary gas flowpath and second inducers , the second inducers configured to accelerate a second fluid flow from the second supply plenum towards the rotor with a tangential velocity; and a cooling modulation valve operable to selectively permit or block the second fluid flow from the primary gas flowpath to the second supply plenum. The valve includes a flow control structure disposed in the primary gas flowpath and an actuation structure extending to a location radially outside of a casing defining the primary gas flowpath.

Abstract translation: 一种用于将冷却流从主气体流路传递到涡轮转子的流动传递装置。 该设备包括与初级气体流路连通的第一供应气室和第一诱导器，第一诱导器被配置为加速来自第一供应气室的第一流体流动并以切向速度将其朝向转子排放; 与第一气体流路和第二诱导器连通的第二供应气室，第二诱导器被配置成以切线速度将第二流体流从第二供应气室朝向转子加速; 以及冷却调节阀，其可操作以选择性地允许或阻挡第二流体从初级气体流动路径流向第二供应气室。 阀包括设置在主气流路径中的流量控制结构和延伸到限定主气流径的壳体的径向外侧的位置的致动结构。