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公开(公告)号:US20180050807A1
公开(公告)日:2018-02-22
申请号:US15242844
申请日:2016-08-22
Applicant: General Electric Company
Inventor: Thomas Kupiszewski , Brandon Wayne Miller , Randy M. Vondrell
CPC classification number: B64D27/24 , B60L11/06 , B60L2200/10 , B60L2210/30 , B64D27/02 , B64D2027/026 , B64D2205/00 , B64D2221/00 , H02J1/102 , H02J4/00 , H02J2001/008 , Y10S903/902
Abstract: A propulsion system includes an electric propulsor and a gas turbine engine. The propulsion system also includes an electric machine coupled to a rotary component of the gas turbine engine generating a voltage at a baseline voltage magnitude during operation of the gas turbine engine. An electric communication bus is provided electrically connecting the electric machine to the electric propulsor. The propulsion system additionally includes a means for providing a differential voltage to the electric propulsor equal to about twice the baseline voltage magnitude.
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公开(公告)号:US20170297728A1
公开(公告)日:2017-10-19
申请号:US15132304
申请日:2016-04-19
Applicant: General Electric Company
Inventor: Daniel Alan Niergarth , Randy M. Vondrell , Brandon Wayne Miller , Patrick Michael Marrinan
CPC classification number: B64D27/24 , B64D27/02 , B64D27/12 , B64D2027/026 , F01D25/24 , F02C3/04 , F02C7/36 , Y02T50/44 , Y02T50/62 , Y10S903/905 , Y10S903/906 , Y10S903/907
Abstract: A propulsion system for an aircraft is provided having a propulsion engine configured to be mounted to the aircraft. The propulsion engine includes an electric machine defining an electric machine tip speed during operation. The propulsion system additionally includes a fan rotatable about a central axis of the electric propulsion engine with the electric machine. The fan defines a fan pressure ratio, RFP, and includes a plurality of fan blades, each fan blade defining a fan blade tip speed. The electric propulsion engine defines a ratio of the fan blade tip speed to electric machine tip speed that is within twenty percent of the equation, 1.01×RFP−0.311, such that the propulsion engine may operate at a desired efficiency.
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公开(公告)号:US20170253340A1
公开(公告)日:2017-09-07
申请号:US15245257
申请日:2016-08-24
Applicant: General Electric Company
Inventor: Randy M. Vondrell , Matthew Ryan Polakowski , Kurt David Murrow , Glenn Crabtree
CPC classification number: B64D27/18 , B64C11/30 , B64D27/24 , B64D41/00 , B64D2027/026 , B64D2221/00 , F01D15/10 , Y02T50/62
Abstract: A propulsion system for an aircraft includes an electric generator and a turbomachine. The turbomachine is configured to be mounted to a first wing of the aircraft and is operable with the electric generator. The propulsion system additionally includes a first propulsor mechanically coupled to a shaft of the turbomachine and a second propulsor assembly configured to be mounted at a location away from the turbomachine and the first propulsor. The electric generator is in electrical communication with the second propulsor assembly for powering the second propulsor assembly.
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公开(公告)号:US20170122426A1
公开(公告)日:2017-05-04
申请号:US14931488
申请日:2015-11-03
Applicant: General Electric Company
Inventor: Brandon Wayne Miller , Randy M. Vondrell , Donald Albert Bradley , Bugra Han Ertas
CPC classification number: F16H57/0006 , F02C3/107 , F02C7/36 , F02K3/06 , F05D2260/40311 , F05D2260/96 , F16H1/28 , F16H57/082
Abstract: A planet gear train for an engine casing includes a sun gear rotatable by a shaft, a ring gear, a plurality of planet gears rotatably mounted in a planet carrier and meshing with the sun gear and the ring gear, and a damping system. The damping system includes a soft mount disposed about the shaft and coupling the planet carrier the engine casing. The soft mount includes a flexible inner sleeve and a flexible outer sleeve. The flexible inner sleeve and the flexible outer sleeve are fixedly coupled together at respective central portions thereof near the shaft. The damping system further includes a plurality of damping couplers disposed about an outer flange of the planet carrier. The plurality of damping couplers is configured to flexibly couple the flexible inner sleeve to the flexible outer sleeve.
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公开(公告)号:US09243512B1
公开(公告)日:2016-01-26
申请号:US14596815
申请日:2015-01-14
Applicant: General Electric Company
Inventor: Darek Tomasz Zatorski , Andrew Breeze-Stringfellow , Ian Francis Prentice , Randy M. Vondrell
CPC classification number: F01D21/045 , B64C11/26 , B64D2027/005 , F01D5/147 , F01D5/282 , F04D29/324 , Y02T50/66 , Y02T50/672
Abstract: A rotary machine with at least one frangible composite blade that mitigates adverse conditions associated with release of material resulting from impact damage to the composite blade is provided. The composite blade having provisions for dissipating energy, self-shredding, and predetermined release trajectory. A method for manufacturing the composite blade and assembling the blade into a rotary machine is also provided.
Abstract translation: 提供一种具有至少一个易碎复合叶片的旋转机器,其减轻与由复合叶片的冲击损坏引起的材料释放相关的不利条件。 复合叶片具有用于消耗能量,自切碎和预定释放轨迹的规定。 还提供了一种用于制造复合叶片并将叶片组装成旋转机器的方法。
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公开(公告)号:US20250116243A1
公开(公告)日:2025-04-10
申请号:US18982445
申请日:2024-12-16
Applicant: General Electric Company
Inventor: William Joseph Bowden , Keith Edward James Blodgett , Mustafa Dindar , David Cerra , James Hamilton Grooms , Brandon Wayne Miller , Randy M. Vondrell , David Marion Ostdiek , Craig Williams Higgins , Alexander Kimberely Simpson
Abstract: A gas turbine engine includes a turbomachine having a compressor section, a combustion section, and a turbine section arranged in serial flow order. The turbomachine defines an engine inlet to an inlet duct, a fan duct inlet to a fan duct, and a core inlet to a core duct. The primary fan is driven by the turbomachine, and a secondary fan is located downstream of the primary fan within the inlet duct. One or more actuation devices operably associated with the fan duct, the one or more actuation devices actuable to increase or decrease an exit area of the fan duct.
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公开(公告)号:US20250026470A1
公开(公告)日:2025-01-23
申请号:US18439870
申请日:2024-02-13
Applicant: General Electric Company , GE Avio S.r.l.
Inventor: Mehdi Milani Baladi , Randy M. Vondrell
Abstract: A hybrid electric aircraft equipped with gyroscopic stabilization control is provided. In one aspect, a hybrid electric aircraft includes a turbo-generator having a gas turbine engine and an electric generator operatively coupled thereto for generating electrical power. The turbo-generator defines a rotation axis. The aircraft also includes one or more electrically-driven propulsors for producing thrust for the aircraft. In addition, the aircraft includes a pivot mount operatively coupled with the turbo-generator. To provide gyroscopic stabilization control of the aircraft, the pivot mount is controlled to adjust the rotation axis of the turbo-generator relative to a prime stability axis of the aircraft. Additionally or alternatively, a rotational speed of the turbo-generator can be changed to provide gyroscopic stabilization control of the aircraft.
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公开(公告)号:US12104539B2
公开(公告)日:2024-10-01
申请号:US17972720
申请日:2022-10-25
Applicant: General Electric Company
Inventor: Daniel John Oehrle , Randy M. Vondrell
Abstract: A gas turbine engine defines an axial direction and a radial direction and comprises a turbomachine having an unducted primary fan, a core engine a combustor casing enclosing a combustor and defining an outer surface, a core cowl surrounding at least a portion of the core engine. The outer surface of the core cowl defines a peak cowl diameter (D) in the radial direction, and the outer surface of the combustor casing defines a maximum combustor casing diameter (d) along the radial direction. The core engine defines an overall core axial length (L) along the axial direction and an under-core cowl axial length (L1) along the axial direction. The gas turbine engine defines a core cowl diameter ratio (CDR) equal to the peak cowl diameter (D) divided by the maximum combustor casing diameter (d) and a core cowl length ratio (CLR) equal to the under-core cowl axial length (L1) divided by the overall core axial length (L). The CDR is between 2.7 and 3.5 and the CLR is between 0.25 and 0.50.
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公开(公告)号:US20240309829A1
公开(公告)日:2024-09-19
申请号:US18675270
申请日:2024-05-28
Applicant: General Electric Company
Inventor: Brandon Wayne Miller , Randy M. Vondrell , David Marion Ostdiek , Craig William Higgins , Alexander Kimberley Simpson
Abstract: A gas turbine engine is provided. The gas turbine engine includes a turbomachine defining an engine inlet to an inlet duct, a fan duct inlet to a fan duct, and a core inlet to a core duct; a primary fan driven by the turbomachine; and a secondary fan located downstream of the primary fan within the inlet duct. The gas turbine engine defines a thrust to power airflow ratio between 3.5 and 100 and a core bypass ratio between 0.1 and 10, wherein the thrust to power airflow ratio is a ratio of an airflow through a bypass passage over the turbomachine plus an airflow through the fan duct to an airflow through the core duct, and wherein the core bypass ratio is a ratio of the airflow through the fan duct to the airflow through the core duct.
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公开(公告)号:US20240291000A1
公开(公告)日:2024-08-29
申请号:US18404188
申请日:2024-01-04
Applicant: General Electric Company
Inventor: Honggang Wang , Brandon Wayne Miller , Michael Anthony Benjamin , Richard L. Hart , Randy M. Vondrell , Ryan St. Pierre
IPC: H01M8/04111 , H01M8/04014 , H01M8/04701 , H01M8/04746
CPC classification number: H01M8/04111 , H01M8/04022 , H01M8/04731 , H01M8/04761
Abstract: A gas turbine engine is provided. The gas turbine engine includes a turbomachine having a compressor section, a combustor, and a turbine section arranged in serial flow order, the turbomachine further including an outer casing; and a fuel cell assembly positioned within the outer casing of the turbomachine, the fuel cell assembly including a fuel cell positioned aft of the combustor of the turbomachine, defining an exhaust in fluid communication with a location forward of the fuel cell to provide output products to the location, or both.
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