公开(公告)号：US12071904B2

公开(公告)日：2024-08-27

申请号：US17969415

申请日：2022-10-19

申请人： Mitsubishi Power Aero LLC

发明人： Ruurd Vanderleest

IPC分类号： F02C9/18

CPC分类号： F02C9/18 ,  F05D2220/32 ,  F05D2220/76 ,  F05D2270/335

摘要： A controller for a gas turbine engine comprises a fuel flow sensor interface for receiving input signals indicative of a fuel flow into a combustor, a power output sensor interface for receiving input signals indicative of power output of an electrical generator driven via the gas turbine engine, a bleed valve interface for providing an output signal to a bleed valve that controls bleed air to vent a compressor of the gas turbine engine, and memory having stored therein instructions for determining functionality of the bleed valve based on evaluating efficiency of the gas turbine engine when the output signal is issued. A method comprises sensing efficiency of a gas turbine engine in response to actuation of a compressor bleed valve, comparing the efficiency to baseline efficiency, and outputting indicia of a differential between the efficiency and the baseline efficiency as an indication of operability of the first bleed valve.

公开(公告)号：US20240175400A1

公开(公告)日：2024-05-30

申请号：US18351735

申请日：2023-07-13

申请人： General Electric Company

发明人： Darek Tomasz Zatorski ,  Kurt David Murrow ,  Paul Robert Gemin ,  Philip M. Cioffi ,  John Russell Yagielski

IPC分类号： F02C9/56 ,  F01D15/10 ,  F01D15/12 ,  F02C7/32

CPC分类号： F02C9/56 ,  F01D15/12 ,  F02C7/32 ,  F01D15/10 ,  F05D2220/323 ,  F05D2240/40 ,  F05D2270/052 ,  F05D2270/07 ,  F05D2270/335 ,  F05D2270/44 ,  F05D2270/62

摘要： A propulsion assembly includes a first torque source coupled with a first shaft and a second torque source coupled with a second shaft. A coupler selectively couples the first and second torque sources. When the first and second torque sources are coupled via the coupler, in response to a command to decouple the first torque source, an unloading operation is performed to decrease the torque output provided by the first torque source to a threshold, and when reached, the first shaft is decoupled from the coupler. When the first torque source is coupled with the coupler but the second torque source is not, in response to a command to couple the second torque source, a speed matching operation is performed to increase the speed of the second shaft to match a speed of the first shaft, and when the speeds are matched, the second shaft is coupled to the coupler.

公开(公告)号：US11971042B2

公开(公告)日：2024-04-30

申请号：US17423397

申请日：2020-01-27

申请人： Edwards Japan Limited

发明人： Hideo Fukami

IPC分类号： F04D27/00 ,  F04D19/04 ,  F04D25/06 ,  G01K13/00 ,  G01R19/165 ,  G05B23/02 ,  G08B21/18

CPC分类号： F04D27/001 ,  F04D19/042 ,  F04D19/048 ,  F04D25/0633 ,  G01K13/00 ,  G01R19/16533 ,  G05B23/0235 ,  G08B21/182 ,  F05D2270/3032 ,  F05D2270/335 ,  G05B23/0283

摘要： A vacuum pump and a control device are capable of accurately determining timing of rotor blade replacement by creating an index which allows a degree of fatigue of a rotor blade to be determined quantitatively and easily. A motor current value output from a motor drive control portion is input to a time count processing portion, and time in which a current value of a rotating body remains in a range of a stage is totalized for each stage of the current value in the time count processing portion. A rotor blade temperature value output from a rotor blade temperature measurement portion is also input to the time count processing portion. A one-minute average value of the rotor blade temperature value acquired by sampling is calculated. For each stage of the rotor blade temperature value, time in which the average value remains in a range of the stage is totalized.

公开(公告)号：US11859542B2

公开(公告)日：2024-01-02

申请号：US17645162

申请日：2021-12-20

申请人： Rolls-Royce North American Technologies, Inc.

发明人： Richard K Keller ,  Paul Johnson

IPC分类号： F02C6/04 ,  F02C9/18 ,  F02K3/02

CPC分类号： F02C6/04 ,  F02C9/18 ,  F02K3/025 ,  F05D2220/90 ,  F05D2240/128 ,  F05D2260/606 ,  F05D2270/053 ,  F05D2270/335

摘要： A system including a turbine engine configured to generate rotor power and produce an engine air flow. The system is configured to provide rotor power to one of more shaft-driven lift fans to generate a first thrust on an aircraft body and provide a gas flow to one or more gas-driven lift fans to generate a second thrust on the aircraft body. The gas flow may be at least a portion of the engine air flow produced by the turbine engine. The turbine engine may be configured to exhaust another portion of the engine air flow through a jet nozzle to generate an engine thrust. In examples, the system includes at least a second turbine engine. The one of more shaft-driven lift fans and/or one of more gas-driven lift fans be powered by the turbine engine, the second turbine engine, or both the turbine engine and the second turbine engine.

公开(公告)号：US20230344380A1

公开(公告)日：2023-10-26

申请号：US18215039

申请日：2023-06-27

申请人： Johnson Controls Tyco IP Holdings LLP

发明人： Harold J. Dubensky ,  James K. Spitzer ,  Roderick Ray Sentz ,  Kevin R. Stockton

IPC分类号： H02P29/10 ,  F24F11/62 ,  F24F11/63 ,  F24F11/77 ,  F04D27/00 ,  F24F11/30 ,  H02P27/06

CPC分类号： H02P29/10 ,  F24F11/62 ,  F24F11/63 ,  F24F11/77 ,  F04D27/004 ,  F24F11/30 ,  H02P27/06 ,  F05D2270/335

摘要： A fan assembly is provided. The fan assembly includes a fan, a motor that is coupled to the fan, and a variable frequency drive (VFD) that is coupled to the motor. The motor includes a maximum rated speed that is greater than a maximum structural speed limit of the fan, and the VFD includes a current output limit configured to limit an operational speed of the motor to be less than or equal to the maximum structural speed limit of the fan.

公开(公告)号：US11739699B2

公开(公告)日：2023-08-29

申请号：US17521352

申请日：2021-11-08

申请人： PRATT & WHITNEY CANADA CORP.

发明人： Martin Drolet ,  Yves Cloutier

IPC分类号： F02C9/18 ,  F02C9/20 ,  F02C9/22

CPC分类号： F02C9/22 ,  F02C9/18 ,  F02C9/20 ,  F05D2200/13 ,  F05D2200/14 ,  F05D2200/211 ,  F05D2220/323 ,  F05D2270/303 ,  F05D2270/3015 ,  F05D2270/3061 ,  F05D2270/335 ,  F05D2270/71

摘要： The method can include determining a mass flow rate W of working fluid circulating through the compressor stage, determining a control parameter value associated to the geometrical configuration of the variable geometry element based on the determined value of mass flow rate W; and changing the geometrical configuration of the variable geometry element in accordance with the determined control parameter value.

公开(公告)号：US20230251651A1

公开(公告)日：2023-08-10

申请号：US17669331

申请日：2022-02-10

申请人： General Electric Company

发明人： James R. Noel ,  Lauren M. Kelly ,  Jacques Paul

IPC分类号： F01D21/00 ,  F01D21/14 ,  B64D43/00

CPC分类号： F01D21/003 ,  F01D21/14 ,  B64D43/00 ,  F05D2220/323 ,  F05D2260/607 ,  F05D2260/80 ,  F05D2270/335 ,  F05D2270/71

摘要： Provided is a tangible computer-readable, non-transitory storage medium storing instructions that, when executed by a hardware processor of an aircraft, causes the hardware processor to execute a method. The method includes receiving, from an engine particulate sensor of the aircraft, a measure of particulate matter in a gas path of the engine during flight of the aircraft. The method also includes presenting to a pilot of the aircraft, a visualization of the particulate matter measure, wherein the visualization supports a navigation of the aircraft responsive to the presence of the particulate matter.

公开(公告)号：US20180202432A1

公开(公告)日：2018-07-19

申请号：US15742528

申请日：2016-07-05

申请人： AKER SOLUTIONS AS

发明人： ROBIN SLATER ,  GUNDER HOMSTVEDT ,  MARCELO SANTOS

IPC分类号： F04B49/20 ,  E21B43/12 ,  F04D13/08 ,  F04D15/00

CPC分类号： F04B49/20 ,  E21B43/121 ,  F04B15/02 ,  F04B47/06 ,  F04B49/065 ,  F04D13/086 ,  F04D13/10 ,  F04D15/0066 ,  F04D15/0236 ,  F04D31/00 ,  F05D2270/335

摘要： A subsea or downhole pump includes an inlet and an outlet. A flow of a multiphase fluid entering the inlet can have a variation in a gas volume fraction (GVF). The subsea or downhole pump includes or is operatively coupled to control devices which provide for a control as the GVF varies. The control devices include a first transmitter for an electric pump current, a second transmitter for at least one of a pump speed, a pump frequency, and a pump voltage, and a controller. The controller reduces a speed of the subsea or downhole pump when a measured pump current decreases, and increases the speed of the subsea or downhole pump when the measured pump current increases.

公开(公告)号：US20180156127A1

公开(公告)日：2018-06-07

申请号：US15576962

申请日：2016-04-20

申请人： Siemens Aktiengesellschaft

发明人： Kai Hausmann ,  Carsten Seiler ,  Dirk Wall

IPC分类号： F02C7/228 ,  F02C9/28

CPC分类号： F02C7/228 ,  F02C9/26 ,  F02C9/28 ,  F05D2270/053 ,  F05D2270/10 ,  F05D2270/14 ,  F05D2270/303 ,  F05D2270/309 ,  F05D2270/335 ,  F05D2270/701 ,  F05D2270/708 ,  F23N2025/08 ,  F23N2041/20

摘要： An operating method for a gas turbine by partial-load operation, includes setting of a power setpoint value for a predefined temperature value; determining the two operating curves as a function of temperature according to the power of the gas turbine, wherein the power setpoint value is located between said operating curves; determining the difference in power of said two operating curves at the substantially constant predetermined temperature value; determining a power deviation from the predetermined power setpoint value of one of the two operating curves at the substantially constant predetermined temperature value; calculating an interpolated operating curve deviation on the basis of the difference in power and the power deviation, wherein the temperature is a turbine outlet temperature or a computationally determined turbine inlet temperature.

公开(公告)号：US09970447B2

公开(公告)日：2018-05-15

申请号：US14934711

申请日：2015-11-06

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Kohei Oda ,  Kenji Umayahara

IPC分类号： F04D27/02 ,  B60L1/00 ,  B60L11/18 ,  H01M8/04694 ,  H01M8/04746

CPC分类号： F04D27/0261 ,  B60L1/003 ,  B60L11/1883 ,  F05B2260/821 ,  F05B2270/101 ,  F05B2270/1032 ,  F05B2270/335 ,  F05B2270/404 ,  F05D2260/821 ,  F05D2270/03 ,  F05D2270/304 ,  F05D2270/335 ,  F05D2270/44 ,  H01M8/04694 ,  H01M8/04753 ,  H01M2250/20 ,  Y02T90/32 ,  Y02T90/34

摘要： A fuel cell system includes an air compressor that supplies oxidant gas to a fuel cell installed in a fuel cell vehicle, a measured rotational speed acquirer that acquires a measured value of rotational speed of the air compressor, and a controller that calculates a rotational speed command value of the air compressor based on required generated power of the fuel cell, calculates a torque command value of the air compressor based on the calculated rotational speed command value and current rotational speed of the air compressor, and controls rotational speed of the air compressor based on the calculated torque command value. The controller estimates the current rotational speed of the air compressor baaed on the measured value of the rotational speed acquired by the measured rotational speed acquirer and a history of the calculated torque command value, and calculates the torque command value by using the estimated rotational speed.