公开(公告)号：US20240295259A1

公开(公告)日：2024-09-05

申请号：US18661105

申请日：2024-05-10

Applicant: General Electric Company ,  GE Avio S.r.I.

Inventor： Andrea Piazza ,  Ravindra Shankar Ganiger

IPC: F16H55/08 ,  F16H57/02

CPC classification number: F16H55/088 ,  F16H57/02 ,  F16H2057/02039

Abstract: A gearbox assembly includes a first gear and a second gear. The first gear includes a plurality of first gear teeth. The second gear includes a plurality of second gear teeth. The plurality of first gear teeth and the plurality of second gear teeth mesh with each other as the first gear and the second gear rotate. A profile shape of at least one first gear tooth of the first gear is characterized by a total profile modification between 66 micrometers and 120 micrometers.

公开(公告)号：US20240280164A1

公开(公告)日：2024-08-22

申请号：US18647737

申请日：2024-04-26

Applicant: GE Avio S.r.l. ,  GE Aviation Czech s.r.o.

Inventor： Paolo Mastellone ,  Leonardo Coviello ,  Juraj Hrubec

IPC: F16H1/28 ,  F02C7/36 ,  F16H57/02 ,  F16H57/08

CPC classification number: F16H1/28 ,  F02C7/36 ,  F16H57/08 ,  F05D2260/40311 ,  F16H2057/02039 ,  F16H2057/085

Abstract: A gearbox assembly includes a plurality of planet gears. At least one planet gear of the plurality of planet gears includes a layshaft that supports a first stage planet gear and a second stage planet gear. The at least one planet gear is characterized by a Radial Stage Distance greater than or equal to 30 millimeters and less than or equal to 100 millimeters. The Radial Stage Distance is Rrm1−Rrt2. Rrm1 is a first stage rim inner radius of the first stage planet gear and Rrt2 is a second stage root radius of the second stage planet gear.

公开(公告)号：US20240263587A1

公开(公告)日：2024-08-08

申请号：US18384640

申请日：2023-10-27

Applicant: ROLLS-ROYCE plc

Inventor： Mark SPRUCE

IPC: F02C7/36 ,  F16H1/28 ,  F16H57/02

CPC classification number: F02C7/36 ,  F16H1/28 ,  F16H2057/02039

Abstract: A gas turbine engine for an aircraft configured with an engine core that has a turbine, a compressor, and a core shaft connecting the turbine to the compressor. A fan located upstream of the engine core, that has a plurality of fan blades. A gearbox arranged to receive an input from the core shaft and to output to the fan so as to drive the fan at a lower rotational speed than the core shaft. The gearbox being an epicyclic gearbox having a sun gear, a plurality of planet gears, a ring gear, and a planet carrier on which the planet gears are mounted. The gearbox having an overall gear mesh stiffness, and wherein the overall gear mesh stiffness of the gearbox is greater than or equal to 1.05×109 N/m and less than or equal to 8.0×109 N/m.

公开(公告)号：US11920476B2

公开(公告)日：2024-03-05

申请号：US18176012

申请日：2023-02-28

Applicant: Lumenium LLC

Inventor： William Anderson ,  William Lukaczyk

IPC: F01C21/00 ,  F01C1/22 ,  F01C1/32 ,  F02B53/14 ,  F02B55/02 ,  F02B55/08 ,  F16H1/28 ,  F16H57/02 ,  F16H57/04 ,  F16J1/14 ,  F01C21/10 ,  F02B53/10

CPC classification number: F01C1/22 ,  F01C21/008 ,  F02B53/14 ,  F02B55/02 ,  F02B55/08 ,  F16H57/02 ,  F16H57/0454 ,  F16J1/14 ,  F01C1/32 ,  F01C21/10 ,  F02B53/10 ,  F02B2730/011 ,  F16H1/28 ,  F16H2057/0203 ,  F16H2057/02039

Abstract: The disclosure provides rotary machines that include, in one embodiment, a shaft defining a central axis A, the shaft having a first end and a second end. The shaft can have a first gearbox disposed thereon defining one or more cavities therein. At least one contour is slidably received into an arcuate cavity in an exterior surface of the gearbox. The contour has a convex outer surface that cooperates with an inwardly facing curved surface of a housing to form a working volume. A gearbox mechanism consisting of gears, crankshafts, bearings and connecting rod creates an oscillatory motion 2 times per revolution such that the contour can navigate about the arcuate cavity without contacting the cavity at a high rate of rotating speed. Thus, said working volume can expand and compresses twice per rotatable shaft revolution.

公开(公告)号：US11828235B2

公开(公告)日：2023-11-28

申请号：US17473233

申请日：2021-09-13

Applicant: General Electric Company

Inventor： Peeyush Pankaj ,  Narayanan Payyoor ,  Shashank Suresh Puranik ,  Arvind Kumar Rao ,  Praveen Sharma ,  Chirayu Pradip Inamdar ,  Vidyashankar Ramasastry Buravalla ,  Sankarapandian Palaniappan ,  Sampath Karthikeyan

IPC: F02C7/36 ,  F16H57/02 ,  F16H57/00 ,  F16H57/08

CPC classification number: F02C7/36 ,  F16H57/0006 ,  F16H57/02 ,  F05D2220/32 ,  F05D2260/40311 ,  F05D2260/96 ,  F16F2222/02 ,  F16F2224/0258 ,  F16H2057/02039 ,  F16H2057/085

Abstract: An epicyclic gearbox is configured to transfer rotational motion between a first rotating component and a second rotating component of the gas turbine engine. The gearbox includes a centrally located sun gear, two or more planet gears circumscribing the sun gear, and a ring gear circumscribing the plurality of planet gears. The gearbox is configured such that the sun gear is drivingly coupled to the first rotating component, such that rotation of the sun gear causes rotation of each planet gear, and such that the ring gear rotates relative to the plurality of planet gears. The gearbox includes one or more shape memory alloy dampers provided in association with the sun gear, the ring gear, and/or the plurality of planet gears. The shape memory alloy damper(s) is configured in order to reduce vibrations transferred through the epicyclic gearbox to the frame, the first rotating component, and/or the second rotating component.

公开(公告)号：US11752823B2

公开(公告)日：2023-09-12

申请号：US16959140

申请日：2018-07-24

Applicant: SHENZHEN POLYTECHNIC

Inventor： Shaoyun Ren ,  Zhijun Deng ,  Zhurong Dong

IPC: F16F9/19 ,  B60G17/08 ,  B60G13/08 ,  B60G17/015 ,  F16F9/32 ,  F16F9/38 ,  F16F9/43 ,  F16F9/50 ,  F16H1/28 ,  F16H57/02

CPC classification number: B60G17/0152 ,  B60G13/08 ,  B60G17/08 ,  F16F9/19 ,  F16F9/3214 ,  F16F9/3242 ,  F16F9/38 ,  F16F9/43 ,  F16F9/50 ,  F16H1/28 ,  F16H57/02 ,  B60G2202/24 ,  B60G2206/41 ,  B60G2500/10 ,  B60G2800/162 ,  F16F2222/12 ,  F16F2228/066 ,  F16F2230/0023 ,  F16F2230/18 ,  F16F2234/02 ,  F16H2057/02039

Abstract: A vibration damping component, comprising a hydraulic cylinder and a hydraulic motor; The hydraulic oil cylinder comprises an oil storage cylinder and a working cylinder, wherein the working cylinder is internally provided with a first piston piece and is divided into an expansion cavity and a contraction cavity by means of the first piston piece; the expansion connects the oil storage cylinder by means of a first one-way oil discharge; the contraction connects the oil storage cylinder by means of a second one-way oil discharge; the oil storage cylinder is provided thereon with an oil outlet hole; an input end of the hydraulic motor is connected to the oil outlet hole; and an output end of the hydraulic motor is in communication respectively with the expansion by means of a first one-way oil return pipe and with the contraction by means of a second one-way oil return pipe.

公开(公告)号：US20230212986A1

公开(公告)日：2023-07-06

申请号：US17980230

申请日：2022-11-03

Applicant: ROLLS-ROYCE plc

Inventor： Mark SPRUCE

IPC: F02C7/36 ,  F16H1/28 ,  F16H57/02

CPC classification number: F02C7/36 ,  F16H1/28 ,  F16H2057/02039

Abstract: A gas turbine engine for an aircraft configured with an engine core that has a turbine, a compressor, and a core shaft connecting the turbine to the compressor. A fan located upstream of the engine core, that has a plurality of fan blades. A gearbox arranged to receive an input from the core shaft and to output to the fan so as to drive the fan at a lower rotational speed than the core shaft. The gearbox being an epicyclic gearbox having a sun gear, a plurality of planet gears, a ring gear, and a planet carrier on which the planet gears are mounted. The gearbox having an overall gear mesh stiffness, and wherein the overall gear mesh stiffness of the gearbox is greater than or equal to 1.05×109 N/m and less than or equal to 8.0×109 N/m.

公开(公告)号：US20170292589A1

公开(公告)日：2017-10-12

申请号：US15511214

申请日：2015-09-08

Applicant: Leo J. Stocco

Inventor： Leo J. Stocco

IPC: F16H1/20 ,  F16H57/023 ,  F16H57/02

CPC classification number: F16H1/20 ,  F16H1/02 ,  F16H57/02 ,  F16H57/023 ,  F16H2057/02039

Abstract: A Hybrid Orbitless gearbox combines the high speed capabilities of an Orbitless first stage with the high ratio of a Coupled Orbitless second stage. The two stages share a common set of carriers and offset members for high compactness and simplicity. A Coupled Orbitless second stage may also function on its own. Its all-pinion design supports a variety of engaging members that include gears, chains, sprockets, belts, cables and pulleys, among others. Stepped engaging members further amplify the reduction ratio and variable pitch diameter engaging members provide an infinitely variable transmission ratio.

公开(公告)号：US09624720B2

公开(公告)日：2017-04-18

申请号：US14682100

申请日：2015-04-09

Applicant: David R. Hall

Inventor： David R. Hall ,  Austin Benjamin Carlson ,  Davido Loyal Hyer ,  Emily Brimhall

IPC: E05F15/20 ,  E06B9/307 ,  F16H57/023 ,  E06B9/322 ,  E06B9/266 ,  E06B9/303 ,  E06B9/34 ,  E06B9/72 ,  E06B9/68 ,  E06B9/42 ,  E06B9/32 ,  E06B9/74 ,  F24J2/40 ,  E06B9/308 ,  E06B9/326 ,  E06B9/38

CPC classification number: E06B9/322 ,  E06B9/266 ,  E06B9/303 ,  E06B9/307 ,  E06B9/308 ,  E06B9/32 ,  E06B9/326 ,  E06B9/34 ,  E06B9/38 ,  E06B9/42 ,  E06B9/68 ,  E06B9/72 ,  E06B9/74 ,  E06B2009/2476 ,  E06B2009/285 ,  E06B2009/3222 ,  E06B2009/3225 ,  E06B2009/6818 ,  E06B2009/6827 ,  F16H1/20 ,  F16H57/02 ,  F16H57/021 ,  F16H57/023 ,  F16H57/028 ,  F16H2057/02034 ,  F16H2057/02039 ,  F24S50/40 ,  F24S50/80 ,  G08C17/02 ,  H01H17/08 ,  Y02A30/257 ,  Y02B10/20 ,  Y02B80/50 ,  Y10T29/49817 ,  Y10T29/49959 ,  Y10T74/2186

Abstract: A system in accordance with the invention includes a video display adapter, such as a USB or HDMI dongle, configured to generate a signal when a video display (e.g., a television, projector, etc.) is turned on or off. A controller receives the signal and automatically actuates a motorized window covering in response to the signal. In certain embodiments, the motorized window covering receives the signal directly from the video display adapter without requiring any intervening electronic devices. A corresponding method is also disclosed herein.

公开(公告)号：US20150284997A1

公开(公告)日：2015-10-08

申请号：US14682100

申请日：2015-04-09

Applicant: David R. Hall

Inventor： David R. Hall ,  Austin Benjamin Carlson ,  Davido Loyal Hyer ,  Emily Brimhall

IPC: E06B9/72 ,  E06B9/68 ,  E06B9/42

CPC classification number: E06B9/322 ,  E06B9/266 ,  E06B9/303 ,  E06B9/307 ,  E06B9/308 ,  E06B9/32 ,  E06B9/326 ,  E06B9/34 ,  E06B9/38 ,  E06B9/42 ,  E06B9/68 ,  E06B9/72 ,  E06B9/74 ,  E06B2009/2476 ,  E06B2009/285 ,  E06B2009/3222 ,  E06B2009/3225 ,  E06B2009/6818 ,  E06B2009/6827 ,  F16H1/20 ,  F16H57/02 ,  F16H57/021 ,  F16H57/023 ,  F16H57/028 ,  F16H2057/02034 ,  F16H2057/02039 ,  F24S50/40 ,  F24S50/80 ,  G08C17/02 ,  H01H17/08 ,  Y02A30/257 ,  Y02B10/20 ,  Y02B80/50 ,  Y10T29/49817 ,  Y10T29/49959 ,  Y10T74/2186

Abstract: A system in accordance with the invention includes a video display adapter, such as a USB or HDMI dongle, configured to generate a signal when a video display (e.g., a television, projector, etc.) is turned on or off. A controller receives the signal and automatically actuates a motorized window covering in response to the signal. In certain embodiments, the motorized window covering receives the signal directly from the video display adapter without requiring any intervening electronic devices. A corresponding method is also disclosed herein.

Abstract translation: 根据本发明的系统包括诸如USB或HDMI加密狗的视频显示适配器，其被配置为当视频显示器（例如，电视机，投影仪等）被打开或关闭时产生信号。 控制器接收信号并响应于该信号自动启动电动窗帘。 在某些实施例中，电动窗户覆盖物直接从视频显示适配器接收信号，而不需要任何中间电子设备。 本文还公开了相应的方法。