公开(公告)号：US20140045645A1

公开(公告)日：2014-02-13

申请号：US13975635

申请日：2013-08-26

Applicant: United Technologies Corporation

Inventor： Michael E. McCune ,  William G. Sheridan

IPC: F16H57/023

CPC classification number: F02C7/36 ,  F02C3/107 ,  F02C7/32 ,  F02K3/06 ,  F05D2230/60 ,  F05D2260/40311 ,  F16H1/28 ,  F16H57/023 ,  F16H57/0423 ,  F16H57/0456 ,  F16H57/0479 ,  F16H57/0486 ,  F16H57/082 ,  Y02T50/671 ,  Y10T29/49464

Abstract: A method of mounting a gear train to a torque frame includes providing a unitary carrier having a central axis that includes spaced apart walls and circumferentially spaced connecting structure defining mounts for interconnecting the walls. Spaced apart apertures are provided between the mounts at an outer circumference of the carrier. Gear pockets are provided between the walls and mounts extending to the apertures, and a central opening in at least one of the walls. A plurality of intermediate gears and a sun gear are inserted in the carrier. A first ring gear half is placed about the outer periphery of the intermediate gears, and attach a torque frame to the carrier.

Abstract translation: 将齿轮系安装到扭矩框架的方法包括提供具有中心轴线的单一载体，所述中心轴线包括间隔开的壁，并且周向间隔开的连接结构限定用于互连壁的支座。 间隔开的孔被设置在载体的外周的安装件之间。 在墙壁和延伸到孔的安装件之间设置齿轮袋，以及在至少一个壁中的中心开口。 多个中间齿轮和太阳齿轮插入载体中。 第一环形齿轮一半围绕中间齿轮的外周放置，并且将转矩框架附接到载体上。

公开(公告)号：US20140031162A1

公开(公告)日：2014-01-30

申请号：US13947158

申请日：2013-07-22

Applicant: United Technologies Corporation

Inventor： Loc Quang Duong ,  Lawrence E. Portlock ,  Michael E. McCune

IPC: F16H57/04

CPC classification number: F16H57/042 ,  F16H57/045 ,  F16H57/0471 ,  F16H57/0479 ,  F16H57/0482 ,  F16H57/082

Abstract: A planetary carrier includes a journal bearing for supporting a planetary gear. The journal bearing receives lubricant to produce a lubricant film to support gear loads. A torque frame is attached to the carrier housing to transmit torque and to prevent twisting of the carrier housing. The torque frame includes several lubricant communication passages to provide lubricant to each of the separate journal bearings. Each of the lubricant communication passages includes an accumulator for storing lubricant during normal operation. The accumulator stores a desired amount of lubricant to provide lubricant to the adjacent journal bearing for the interim period between primary system stoppage and reestablishment of lubricant flow by a secondary system.

Abstract translation: 行星架包括用于支撑行星齿轮的轴颈轴承。 轴颈轴承接收润滑剂以产生润滑剂膜以支撑齿轮负载。 扭矩框架附接到承载壳体以传递扭矩并且防止承载壳体的扭转。 扭矩框架包括若干润滑剂连通通道，以向每个单独的轴颈轴承提供润滑剂。 每个润滑剂连通通道包括用于在正常操作期间储存润滑剂的储液器。 蓄能器存储所需量的润滑剂，以在主系统停止和辅助系统重新建立润滑剂流动之间的临时期间向邻近的轴颈轴承提供润滑剂。

公开(公告)号：US20130287575A1

公开(公告)日：2013-10-31

申请号：US13908177

申请日：2013-06-03

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Michael E. McCune ,  Jason Husband ,  Frederick M. Schwarz ,  Daniel Bernard Kupratis ,  Gabriel L. Suciu ,  William K. Ackermann

IPC: F02C7/20

CPC classification number: F01D15/12 ,  F01D5/06 ,  F01D9/041 ,  F02C3/107 ,  F02C7/20 ,  F02C7/36 ,  F02K3/06 ,  F04D19/002 ,  F04D25/045 ,  F04D29/053 ,  F04D29/325 ,  F05D2220/32 ,  F05D2220/323 ,  F05D2240/60 ,  F05D2260/4031 ,  F05D2260/40311 ,  F05D2300/501 ,  Y02T50/671

Abstract: A gas turbine engine includes a flex mount for a fan drive gear system. A very high speed fan drive turbine drives the fan drive gear system.

公开(公告)号：US11079007B2

公开(公告)日：2021-08-03

申请号：US16833754

申请日：2020-03-30

Applicant: United Technologies Corporation

Inventor： William G. Sheridan ,  Michael E. McCune

IPC: F16H57/04 ,  F01D25/18 ,  F02C7/36 ,  F02C3/04 ,  F16H57/08

Abstract: A method of assembling an epicyclic gear train includes providing a unitary carrier that includes spaced apart walls and circumferentially spaced mounts interconnecting the walls, spaced apart apertures provided between the mounts at an outer circumference of the carrier, gear pockets provided between the walls and mounts extending to the apertures, and a central opening in at least one of the walls, inserting an intermediate gear through the central opening and moving the intermediate gear radially into the gear pocket to extend through the aperture, inserting a baffle into the carrier, and inserting a sun gear through the central opening to intermesh with the intermediate gear.

公开(公告)号：US11066945B2

公开(公告)日：2021-07-20

申请号：US16267986

申请日：2019-02-05

Applicant: United Technologies Corporation

Inventor： Michael E. McCune

IPC: F01D9/06 ,  F02C3/107 ,  F01D25/18 ,  F02C7/36 ,  F02C7/06 ,  F16H57/04

Abstract: A turbine engine system includes a gutter and a gear train with an axial centerline. The gutter is disposed radially outside of the axial centerline. The gutter includes an inner surface and a channel that receives fluid directed out of the gear train. The inner surface at least partially defines a bore in which the gear train is arranged. The channel extends radially into the gutter from the inner surface, and circumferentially to a channel outlet. The bore has a cross-sectional bore area, and the channel has a cross-sectional channel area that is substantially equal to or less than about two percent of the bore area.

公开(公告)号：US10724445B2

公开(公告)日：2020-07-28

申请号：US15860770

申请日：2018-01-03

Applicant: United Technologies Corporation

Inventor： William G. Sheridan ,  Michael E. McCune

IPC: F02C7/36 ,  F01D25/16 ,  F01D25/18 ,  F02C7/06 ,  F16H1/28 ,  F16H57/08 ,  F02K3/06 ,  F16H57/00

Abstract: A method of assembling a fan drive gear system for a gas turbine engine according to an example of the present disclosure includes the steps of providing a unitary carrier defining a central axis and that includes spaced apart walls and circumferentially spaced mounts defining spaced apart apertures at an outer circumference of the carrier, gear pockets defined between the walls and extending to the apertures, and a central opening in at least one of the walls. The method includes the steps of inserting a plurality of intermediate gears through the central opening, moving the intermediate gears radially outwardly relative to the central axis into the gear pockets, inserting a sun gear through the central opening, moving the plurality of intermediate gears radially inwardly relative to the central axis to engage the sun gear, and coupling a fan shaft to the carrier such that the fan shaft and intermediate gears are rotatable about the central axis. A fan drive gear system is also disclosed.

公开(公告)号：US20200217273A1

公开(公告)日：2020-07-09

申请号：US16812636

申请日：2020-03-09

Applicant: United Technologies Corporation

Inventor： William G. Sheridan ,  Michael E. McCune

IPC: F02K3/06 ,  F02C7/36 ,  F01D25/16 ,  F04D29/52

Abstract: An exemplary gas turbine engine includes a fan section including a fan rotor and at least one fan blade. A fan pressure ratio across the at least one fan blade is less than 1.45, noninclusive of the pressure across any fan exit guide vane system. The engine further includes a low-pressure compressor having a low-pressure compressor rotor that rotates together with the fan rotor at a common speed in operation, and a geared architecture that drives the low-pressure compressor rotor and the fan rotor. The geared architecture has a gear reduction ratio of greater than 2.5. The engine further includes a high-pressure compressor having a pressure ratio greater than 20, a low-pressure turbine having a pressure ratio greater than 5, and a bypass ratio greater than 10.

公开(公告)号：US10670132B2

公开(公告)日：2020-06-02

申请号：US16121929

申请日：2018-09-05

Applicant: United Technologies Corporation

Inventor： Michael E. McCune

IPC: F16H55/17 ,  F16H1/28 ,  B22F5/08 ,  F02C7/36 ,  B22F3/105 ,  B22F5/00 ,  B22F7/06 ,  B22F7/08 ,  B22F3/24

Abstract: A gear includes a multiple of gear teeth that extend from an outer portion of a rim about an axis and an inner portion of the rim about the axis, the inner portion of the rim additive manufactured.

公开(公告)号：US10591047B2

公开(公告)日：2020-03-17

申请号：US16166251

申请日：2018-10-22

Applicant: United Technologies Corporation

Inventor： Michael E. McCune ,  Lawrence E. Portlock

IPC: F16H57/04 ,  F16H57/08 ,  F01D5/02 ,  F02C7/36 ,  F16D1/076 ,  F01D25/18 ,  F02C7/28 ,  F16H1/28

Abstract: An epicyclic gear train for a gas turbine engine according to an example of the present disclosure includes, among other things, a gutter having an annular channel, a sun gear rotatable about an axis, intermediary gears arranged circumferentially about and meshing with the sun gear, and a carrier supporting the intermediary gears, and a ring gear arranged about and intermeshing with the intermediary gears, the ring gear having an aperture axially aligned with the annular channel. The ring gear includes axially spaced apart walls that extend radially outward to define a passageway, and the passageway is arranged radially between the aperture and the annular channel such that the walls inhibit an axial flow of an oil passing from the aperture toward the annular channel.

公开(公告)号：US20200025145A1

公开(公告)日：2020-01-23

申请号：US16122236

申请日：2018-09-05

Applicant: United Technologies Corporation

Inventor： Michael E. McCune ,  Lawrence E. Portlock ,  Frederick M. Schwarz

IPC: F02K3/06 ,  F02C7/36

Abstract: A gas turbine engine includes a bypass ratio greater than about ten (10). A fan is supported on a fan shaft and has a plurality of fan blades. There is a gutter with an annular channel. A gear system is connected to the fan shaft. There is a plurality of planetary gears and a ring gear with an aperture that is axially aligned with the annular channel. The ring gear includes a first portion with a first set of opposed angled teeth separated by a trough from a second portion with a second set of opposed angled teeth. A torque frame at least partially supports the gear system. A low pressure turbine has an inlet, an outlet, and a low pressure turbine pressure ratio greater than 5:1 and a low fan pressure ratio of less than 1.45 across the fan blade alone.