[특허]Valve controller for pressure stabilization

THE BOEING COMPANY

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Valve controller for pressure stabilization

국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02K-009/00 B64G-001/40 B64D-037/00 F16J-012/00 F17C-001/00 F02K-009/56 F02K-009/50 F02K-009/60
출원번호	US-0657799 (2015-03-13)
등록번호	US-9650996 (2017-05-16)
발명자 / 주소	Smith, Gregory H. Martinez, Julio C. Teran, Fernando C. Reyes, Romy Andrade Pauley, B. Wayne Watkins, Randall W.
출원인 / 주소	THE BOEING COMPANY
대리인 / 주소	Patterson + Sheridan, LLP
인용정보	피인용 횟수 : 0 인용 특허 : 16

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Method and apparatus for controlling pressure in a pressure vessel. A plurality of valves between a pressure source and a pressure vessel can be selectively opened or turned off, singularly or in combinations, to control pressure in the pressure vessel. A maximum pressure threshold and a minimum pressure threshold can be established based on operating considerations of the pressure vessel. One or more of the valves can be turned on when the pressure in the pressure vessel reaches the minimum pressure threshold. One or more of the valves can be turned off...

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1. An apparatus for controlling pressure in a pressure vessel, wherein the pressure vessel is connected to a pressure source by a plurality of valves, and wherein the pressure vessel includes one or more pressure sensors arranged to measure pressure within the pressure vessel, the apparatus comprising: a sensor input configured to receive pressure signals from the one or more pressure sensors; a maximum pressure threshold input configured to receive a maximum pressure threshold signal; a minimum pressure threshold input configured to receive a minimum pressure threshold signal; a power output configured to provide a power supply to the one or more pressure sensors; a valve signal output configured to output valve driver signals; a valve controller configured to: compare the one or more pressure signals to the maximum pressure threshold signal and the minimum pressure threshold signal; upon the one or more pressure signals dropping below a value associated with the minimum pressure threshold signal, outputting a first valve driver signal that causes at least one of the plurality of valves to open; and upon the one or more pressure signals rising above a value associated with the maximum pressure threshold signal, outputting a second valve driver signal that causes at least one of the plurality of valves to close; wherein the pressure vessel is a liquid fuel propellant tank for an engine of a spacecraft, wherein the maximum pressure threshold signal and the minimum pressure threshold signal are received from a flight management computer for the spacecraft that dynamically adjusts the maximum pressure threshold signal and the minimum pressure threshold signal based on performance of the engine of the spacecraft. 2. The apparatus of claim 1, further comprising an engagement signal input configured to receive an engagement signal, wherein upon receiving the engagement signal, the valve controller opens at least one of the plurality of valves. 3. The apparatus of claim 1, wherein the valve controller is configured to, after opening at least one of the plurality of valves and upon the pressure signal remaining below the value associated with the minimum pressure threshold signal, open at least a second of the plurality of valves. 4. The apparatus of claim 1, wherein the valve controller is configured to, after closing at least one of the plurality of valves and upon the pressure signal remaining above the value associated with the maximum pressure threshold signal, close at least a second of the plurality of valves. 5. The apparatus of claim 1, wherein the power output is configured to output a twenty eight volt power supply and a ten volt power supply. 6. The apparatus of claim 1, wherein the power output is configured to selectively output a ten volt power supply or a twenty eight volt power supply. 7. The apparatus of claim 1, further comprising: a first hex switch that outputs the maximum pressure threshold signal; anda second hex switch that outputs the minimum pressure threshold signal. 8. The apparatus of claim 1, further comprising a signal conditioning module configured to: convert analog pressure signals from the one or more pressure sensors to digital pressure signals; andoutput the digital pressure signals. 9. The apparatus of claim 1, further comprising a driver module configured to selectively provide drive signals to the plurality of valves; wherein the valve controller is configured to output the first valve driver signal to the driver module, wherein the driver module provides a first drive signal to the plurality of valves, in response to the first valve driver signal, that causes at least one of the plurality of valves to open; andwherein the valve controller is configured to output the second valve driver signal to the driver module, wherein the driver module provides a second drive signal to the plurality of valves, in response to the second valve driver signal, that causes at least one of the plurality of valves to close. 10. The apparatus of claim 1, further comprising a vehicle, wherein the pressure vessel is a fuel storage tank arranged in the vehicle, wherein the plurality of valves comprise a plurality of selectively controllable valves arranged in the vehicle between the fuel storage tank and the pressure source, wherein the valve signal output is operable to output valve driver signals to the plurality of selectively controllable valves, and wherein the vehicle comprises: an engine;a pressure sensor in the fuel storage tank and operable to output pressure signals to the sensor input; anda first computer processor operable to control operation of the engine, wherein the first computer processor outputs a maximum pressure threshold signal to the maximum pressure threshold input and outputs a minimum pressure threshold signal to the minimum pressure threshold input. 11. The apparatus of claim 10, wherein the vehicle further comprises an enable signal module that is configured to output an enable signal, wherein the valve controller further comprises an enablement input, and wherein, upon receiving the enable signal, the processor opens at least one of the plurality of valves prior to comparing the pressure signals to the maximum pressure threshold signal and the minimum pressure threshold signal. 12. The apparatus of claim 10, wherein the vehicle is a crew escape module of a rocket, wherein the engine is configured to separate the crew escape module from the rocket in the event of a malfunction of the rocket, and wherein the enable signal module automatically outputs the enable signal upon a malfunction of the rocket. 13. The apparatus of claim 10, wherein the second processor is configured to, after opening at least one of the plurality of valves and upon the pressure signal remaining below the value associated with the minimum pressure threshold signal, open at least a second of the plurality of valves. 14. The apparatus of claim 10, wherein the second processor is configured to, after closing at least one of the plurality of valves and upon the pressure signal remaining above the value associated with the maximum pressure threshold signal, close at least a second of the plurality of valves. 15. The apparatus of claim 10, wherein the first processor changes at least one of the output maximum pressure threshold signal and the output minimum pressure threshold signal in response to an amount of thrust being produced by the engine.

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Valve controller for pressure stabilization

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Valve controller for pressure stabilization

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이 특허에 인용된 특허 (16)

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IPC 상위 출원인

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IPC 상세정보(version : 201201)

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