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公开(公告)号：US12110827B1
公开(公告)日：2024-10-08
申请号：US18311660
申请日：2023-05-03
CPC分类号： F02C7/236 , F02C7/32 , F05D2220/323 , F05D2270/07
摘要： A turbo engine for an aircraft includes a gas turbine engine having a combustion section and a fuel system to provide pressurized fuel to the combustion section. The fuel system includes a fuel tank and a boost pump and a main pump driven by an accessory gearbox that is powered by a shaft of the turbo engine. The boost pump and the main pump are arranged in series. The fuel system also includes an auxiliary pump and a controller to operate the fuel system in (1) a first mode in which the boost pump and the main pump produce pressurized fuel for the turbo engine and the auxiliary pump is deactivated, and (2) a second mode in which the auxiliary pump is activated and produces the pressurized fuel for the turbo engine while bypassing the boost pump and the main pump.
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公开(公告)号：US20230305584A1
公开(公告)日：2023-09-28
申请号：US17702563
申请日：2022-03-23
发明人： Biao Fang , David Justin Brady , John C. Glessner , Brandon W. Miller , Stephanie Glynn Cotten , William Dwight Gerstler , Daniel A. Niergarth , Michael Joseph Murray
CPC分类号： G05D7/0635 , F16K11/0712 , F16K31/406
摘要： Example split valves for regulating a first flowrate and a second flowrate of a fluid within a closed loop systems are disclosed herein. An example split valve includes an electrohydraulic servo valve coupled to a first piston via a first hydraulic flowline and a second hydraulic flowline, the first piston to include a piston shaft, a first head, and a second head; one or more bellows fixed to at least one of the first head or the second head, the one or more bellows to hermetically seal the fluid from a hydraulic fluid; and a control system connected to the electrohydraulic servo valve, the control system to adjust the first flowrate and the second flowrate of the fluid through a first fluid chamber, the first piston to be located in the first fluid chamber.
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公开(公告)号：US12055960B2
公开(公告)日：2024-08-06
申请号：US17702563
申请日：2022-03-23
发明人： Biao Fang , David Justin Brady , John C. Glessner , Brandon W. Miller , Stephanie Glynn Cotten , William Dwight Gerstler , Daniel A. Niergarth , Michael Joseph Murray
CPC分类号： G05D7/0635 , F16K11/0712 , F16K31/406 , G05D7/005 , G05D11/003 , F16K11/065 , Y10T137/86598
摘要： Example split valves for regulating a first flowrate and a second flowrate of a fluid within a closed loop systems are disclosed herein. An example split valve includes an electrohydraulic servo valve coupled to a first piston via a first hydraulic flowline and a second hydraulic flowline, the first piston to include a piston shaft, a first head, and a second head; one or more bellows fixed to at least one of the first head or the second head, the one or more bellows to hermetically seal the fluid from a hydraulic fluid; and a control system connected to the electrohydraulic servo valve, the control system to adjust the first flowrate and the second flowrate of the fluid through a first fluid chamber, the first piston to be located in the first fluid chamber.
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公开(公告)号：US20240174376A1
公开(公告)日：2024-05-30
申请号：US18059515
申请日：2022-11-29
摘要： An aircraft fuel system includes a first fuel storage tank arranged to store a first fuel, a fuel oxygen reduction unit arranged to generate a deoxygenated fuel from the first fuel, and a second fuel storage tank arranged to store the deoxygenated fuel generated by the fuel oxygen reduction unit, and being arranged to supply the deoxygenated fuel to an engine.
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5.发明公开公开(公告)号：US20240209778A1
公开(公告)日：2024-06-27
申请号：US18167723
申请日：2023-02-10
发明人： Mohan Kannaiah Raju , Kudum Shinde , Ravindra Shankar Ganiger , Narendra Hardikar , Michael Joseph Murray
CPC分类号： F02C7/06 , F01D25/20 , F02C9/00 , F05D2220/323 , F05D2260/205
摘要： Methods, systems, and apparatus are disclosed to provide a pressurized fluid to components of a fluid pump. An example flow control system to provide a pressurized lubricant to a secondary flow network disposed within a fluid pump includes sensors to measure parameters of a fluid corresponding to fluid flow; a recirculation loop fluidly coupled to a secondary inlet of the pump, the recirculation loop to provide a first flowpath, wherein the secondary inlet is an inlet to the secondary flow network; a bypass circuit fluidly coupled to the secondary inlet to provide a second flowpath; and a controller to direct the fluid flow to the first flowpath or the second flowpath based on sensor data from the sensor, the sensor data indicative of a state of the fluid.
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公开(公告)号：US20240174375A1
公开(公告)日：2024-05-30
申请号：US18316450
申请日：2023-05-12
摘要： An aircraft fuel system includes a first fuel storage tank arranged to store a first fuel, a second fuel storage tank arranged to store a reduced oxygen fuel, and a fuel tank inerting system arranged to provide a reduced oxygen gas through a fuel contained within the second fuel storage tank to generate the reduced oxygen fuel within the second fuel storage tank. The fuel tank inerting system may include a fuel tank sparging system to inject the reduced oxygen gas directly into the fuel contained within the second fuel storage tank to generate the reduced oxygen fuel.
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公开(公告)号：US20240084741A1
公开(公告)日：2024-03-14
申请号：US18308435
申请日：2023-04-27
摘要： Flow-metering fuel systems and related methods are disclosed. An example apparatus includes a pipe defining a flow path for fuel, the pipe fluidly coupled to a combustor, a first portion of the pipe having a first cross-sectional area, a second portion of the pipe having a second cross-sectional area smaller than the first cross-sectional area, the second portion downstream of the first portion, and an actuator to adjust a flow rate of the fuel in the pipe based on a first pressure of the fuel in the first portion of the pipe, a second pressure of the fuel in the second portion of the pipe, and a temperature of the fuel.
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