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公开(公告)号：US10676198B2
公开(公告)日：2020-06-09
申请号：US15601969
申请日：2017-05-22
Applicant: Rolls-Royce Corporation
Inventor： Donald Klemen , Michael James Armstrong
Abstract: A system includes at least one compressor, at least two turbines, and at least two combustors, each fluidically coupled to a respective turbine of the at least two turbines and configured to receive compressed fluid from the at least one compressor. The system further includes at least two motor-generators, each operably coupled to a respective turbine of the at least two turbines and configured to convert electrical energy to mechanical energy to drive a respective propulsor to which the respective motor-generator is operably coupled and to convert mechanical energy from the respective turbine to electrical energy. The system further includes at least two propulsors, each operably coupled to a respective turbine of the at least two turbines and configured to be driven by the respective turbine, a respective motor-generator to which the respective propulsor is operably coupled via the respective turbine, or both the respective turbine and the respective motor-generator.
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公开(公告)号：US10661911B2
公开(公告)日：2020-05-26
申请号：US16448774
申请日：2019-06-21
Inventor： Michael James Armstrong , Richard K. Keller
Abstract: The disclosure is directed to an optionally hybrid power system that may operate either as a traditional power system, deriving power from a single power source, or as a hybrid power system, deriving power from multiple types of power sources. An example optionally hybrid power system may include a gas turbine engine and one or more electric motors. When configured as a traditional power system the optionally hybrid power system may derive all power from the gas turbine engine. However, when configured as a hybrid power system, the one or more motors may be coupled to the optionally hybrid power system to supplement the power produced by the gas turbine engine. Additionally, an operator interface that may control the optionally hybrid power system may select from a plurality of operating modes that depend on the configuration of the optionally hybrid power system.
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公开(公告)号：US20200157965A1
公开(公告)日：2020-05-21
申请号：US16195336
申请日：2018-11-19
Inventor： Richard Joseph Skertic , Joshua J. Gear , John Joseph Costello , Geoffrey L. Gatton
IPC: F01D11/20
Abstract: Systems and methods are provided that use a tip clearance control apparatus comprising a mechanical iris, where the tip clearance control apparatus controls a distance between a tip of a blade and a ring of abradable material positioned in an adjustable opening of the mechanical iris.
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公开(公告)号：US10605103B2
公开(公告)日：2020-03-31
申请号：US16111793
申请日：2018-08-24
Applicant: Rolls-Royce Corporation , Rolls-Royce plc
Inventor： Daniel K. Vetters , Michael J. Whittle , Eric Koenig
Abstract: A ceramic airfoil system includes a ceramic airfoil shell support by a pair of radially extending pins which penetrate through the shell and connect with a carrier. This pins are disposed at the leading and trailing edges of the airfoil and can be preloaded against the corresponding leading and trailing edge walls to manage thermal growth rates.
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公开(公告)号：US20200096062A1
公开(公告)日：2020-03-26
申请号：US16138532
申请日：2018-09-21
Applicant: Rolls-Royce Corporation
Inventor： Alan Smith
IPC: F16D48/02
Abstract: A rotational system can include a shaft assembly rotationally coupling a first rotor, a second rotor, and a fluid pump. A fluid circuit can include the fluid pump that can be configured to motivate a working fluid through the fluid circuit. A pressurizing valve can be disposed downstream of the fluid pump wherein the rotational system can be configured to rotationally decouple the first rotor from the second rotor by closing the pressurizing valve. The pressurizing valve can be actuated by a controller. A method can include raising a pressure differential across a fluid pump driven by a shaft assembly thereby applying an increased braking torque to the shaft assembly. The pressure differential can be raised by actuating a valve in hydraulic communication with the fluid pump. The shaft assembly can rotationally couple a first rotor with a second rotor, and increasing the braking torque can decouple the rotors.
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Patent Agency Ranking
公开(公告)号：US20200095877A1
公开(公告)日：2020-03-26
申请号：US16142835
申请日：2018-09-26
Applicant: Rolls-Royce Corporation , Rolls-Royce plc
Inventor： Eric Koenig , Michael J. Whittle , Daniel K. Vetters
Abstract: An airfoil vane assembly includes an anti-wear device for blocking fretting on the airfoil shell and/or carrier as an interface between the airfoil shell and carrier during relative movement. The anti-wear device can be secured with one of the airfoil shell and carrier while slidingly engaged with the other.
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公开(公告)号：US10583931B2
公开(公告)日：2020-03-10
申请号：US14585888
申请日：2014-12-30
Inventor： Curtis H. Cline , Michael J. Armstrong
Abstract: An integrated gas turbine engine, electrical power subsystem and thermal management subsystem for aerospace application includes a first motor/generator coupled to a low pressure (LP) shaft of the gas turbine engine, a second motor/generator coupled to a high pressure (HP) shaft of the gas turbine engine, and a system controller coupled to each of the gas turbine engine, a first motor generator and a second motor/generator, wherein the controller receives engine thrust demand and electrical power demand and is programmed to determine total system power demand and the amount of power sharing between the first motor/generator and the second motor/generator to meet thrust and electrical power demand.
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公开(公告)号：US20200072066A1
公开(公告)日：2020-03-05
申请号：US16119388
申请日：2018-08-31
Inventor： David J. Thomas , Aaron D. Sippel , Ted J. Freeman
Abstract: A vane assembly for a gas turbine engine is provided having an outer casing and an inner casing radially spaced apart from the outer casing. An airfoil extends radially between the outer casing and the inner casing. The airfoil includes a spar having an outer endwall positioned adjacent the outer casing and an inner endwall positioned adjacent the inner casing. A pressure side and a suction side extend between the inner endwall and the outer endwall. A ceramic matrix composite cover has a pressure side extending along the pressure side of the spar and a suction side extending along the suction side of the spar.
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公开(公告)号：US20200072065A1
公开(公告)日：2020-03-05
申请号：US16119591
申请日：2018-08-31
Inventor： Aaron D. Sippel , Ted J. Freeman , Loic Fabries
Abstract: A wheel assembly for a gas turbine engine includes a disk and a plurality of blades. The disk is configured to rotate about an axis during operation of the gas turbine engine. The blades each include a circumferentially extending root received in the disk and an airfoil that extends radially away from the root.
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公开(公告)号：US20200072063A1
公开(公告)日：2020-03-05
申请号：US16119504
申请日：2018-08-31
Inventor： Aaron D. Sippel , Ted J. Freeman , Loic Fabries
IPC: F01D5/30
Abstract: A wheel assembly for a gas turbine engine includes a disk, a plurality of blades, and a platform system that includes a plurality of platforms and pins. The disk is configured to rotate about an axis during operation of the gas turbine engine. The blades each include a circumferentially extending root received in the disk and an airfoil that extends radially away from the root. The platforms are arranged around the wheel to define a flow path of the gas turbine engine and the pins extend into the platforms and the disk to couple the platforms with the disk.
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