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公开(公告)号：US11261796B2
公开(公告)日：2022-03-01
申请号：US16725177
申请日：2019-12-23
摘要： A starter air valve has a valve member and an actuator. A rotary spool valve has a rotatable valve body and an outer housing to selectively provide three modes of operation for the starter air valve. A first mode of operation connects air through the rotatable valve body to communicate with an actuator control, and to receive air back from the actuator control. The rotatable valve body then communicates the air to the actuator. In a second mode the rotatable valve body blocks communication between the actuator control and the actuator, and delivers air through a variable area port in a wall of the rotatable valve body to bypass the valve member. In a third mode the rotatable valve body blocks communication between the actuator and the actuator control, and connects air to the actuator without having passed to the actuator control. A starter air system is also disclosed.
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公开(公告)号：US11028726B2
公开(公告)日：2021-06-08
申请号：US16387717
申请日：2019-04-18
IPC分类号： F16K31/122 , F01D19/00 , F16K37/00 , F16K31/42 , G05D7/06 , F01D17/06 , F01D19/02 , F02C7/277
摘要： A starter air valve (SAV) system can include a pressure actuated SAV actuator configured to be operatively connected to a SAV and a first pressure valve configured to selectively allow pressure from a pressure source to the SAV actuator when in fluid communication with the SAV actuator. The first pressure valve can be a pulse-width modulation solenoid valve configured to provide a duty cycle of pressure from the pressure source to the SAV actuator.
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公开(公告)号：US10527038B2
公开(公告)日：2020-01-07
申请号：US15411370
申请日：2017-01-20
IPC分类号： F04C29/00 , F04C18/16 , F16C32/00 , F04C15/00 , F04C14/00 , F01D25/16 , F01D25/18 , F04C2/18 , F02C7/22 , F02C9/26 , F04C2/14 , F04C13/00
摘要： A fuel flow control assembly for an aircraft engine. The assembly includes a gear arrangement having a shaft. Also included is a bearing structure operatively coupled to each shaft. Further included is a pressure pad disposed adjacent the bearing structure, the pressure pad having a radially extending port for receiving a fuel flow. Yet further included is a flow metering device in flow communication with the port of the pressure pad to restrict the fuel flow at a low pressure operating condition and open the port to increase the fuel flow at a high pressure operating condition.
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公开(公告)号：US10465612B2
公开(公告)日：2019-11-05
申请号：US15477628
申请日：2017-04-03
摘要： A pressure sensor for fluid control system for an aircraft includes an enclosure, a piston assembly, and a bellows. The enclosure has a body that extends between a first end and a second end. A first fluid line extends to the first end. The piston assembly has a piston head that is movably disposed within the enclosure and a piston rod that extends from the piston head and through the second end. The bellows is disposed within the body that extends between and is operatively connected to the piston head and the first end.
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公开(公告)号：US09874208B2
公开(公告)日：2018-01-23
申请号：US14601511
申请日：2015-01-21
CPC分类号： F04C2/18 , B23K26/34 , F04C2230/91 , F04C2240/56 , F05C2201/0412 , F05C2201/0448 , F05C2201/0475 , F05C2201/0484 , F16C17/04 , F16C33/14 , F16C35/02 , F16C2220/24 , F16C2237/00
摘要： A bearing carrier has a bearing body including a first material. The bearing body has an exterior surface defining a bridge land with a finger cut and rotatably supports a first and second gear. The first and second gears intermesh with one another for pressurizing fluid traversing the gears between a fluid inlet and a fluid outlet defined in a housing enveloping the bearing carrier. The bridge land is defined in a second material integral with the first material.
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公开(公告)号：US09871260B2
公开(公告)日：2018-01-16
申请号：US14289365
申请日：2014-05-28
IPC分类号： H01M8/04 , B64D41/00 , H02J9/06 , H02K7/18 , H01M8/04007 , H01M8/04119 , H01M8/04082 , H02J4/00
CPC分类号： H01M8/04067 , B64D41/00 , B64D2041/005 , H01M8/04156 , H01M8/04201 , H01M2250/20 , H01M2250/407 , H02J4/00 , H02J9/066 , H02K7/1823 , Y02B90/14 , Y02E60/563 , Y02T90/32 , Y02T90/36
摘要： An integrated hybrid emergency power system having various features is disclosed. A hybrid emergency power system may have an auxiliary power unit and an emergency power unit. The emergency power unit may have a fuel cell. The auxiliary power unit may have an engine. The emergency power unit may be connected to the auxiliary power unit by an emergency power unit efficiency improvement apparatus. In this manner, the operating efficiency of the emergency power unit may be enhanced.
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公开(公告)号：US09638471B2
公开(公告)日：2017-05-02
申请号：US14537311
申请日：2014-11-10
CPC分类号： F28D9/0093 , B23P15/26 , F28D15/00 , F28D2021/0021 , F28D2021/0049
摘要： A heat exchanger is provided having a first fluid circuit defining a first volume and configured to permit a first fluid to flow therethrough with a first fluid supply. The heat exchanger includes a second fluid circuit defining a second volume separate from the first volume and sharing at least one common wall with the first enclosed volume, and configured to permit a second fluid to flow therethrough from a second fluid supply. One or more thermal transfer sheets having one or more channels therein are configured in structural and thermal contact with both the first and second fluid circuits, the channels having a thermodynamic fluid disposed therein and configured to transfer heat between the first fluid circuit and the second fluid circuit. A thermal transfer rate through the at least one common wall is less than a thermal transfer rate of the one or more thermal transfer sheets.
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8.发明授权Fuel intelligent crossfeed valve for detecting leakage in aircraft fuel tanks 有权燃油智能交叉阀，用于检测飞机油箱的泄漏公开(公告)号：US09592905B2
公开(公告)日：2017-03-14
申请号：US14531599
申请日：2014-11-03
CPC分类号： B64C17/10 , B64D37/005 , B64D37/02 , B64D37/28 , F16K11/07 , F16K37/0041
摘要： A fuel management system may include a first fuel tank and a second fuel tank. The fuel management system may also include an intelligent crossfeed valve positioned between the first fuel tank and the second fuel tank and configured to allow fuel to flow between the first fuel tank and the second fuel tank. The fuel management system may also include a sensor configured to detect an amount to which the intelligent crossfeed valve is open. The fuel management system may also include an engine controller connected to the sensor and configured to cause the intelligent crossfeed valve to close in response to the intelligent crossfeed valve being open a third predetermined amount.
摘要翻译： 燃料管理系统可以包括第一燃料箱和第二燃料箱。 燃料管理系统还可以包括位于第一燃料箱和第二燃料箱之间并被配置为允许燃料在第一燃料箱和第二燃料箱之间流动的智能交叉进料阀。 燃料管理系统还可以包括被配置为检测智能交叉进料阀打开的量的传感器。 燃料管理系统还可以包括连接到传感器的发动机控制器，并且被配置为响应于智能交叉进料阀打开第三预定量而导致智能交叉进给阀关闭。
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公开(公告)号：US11879692B2
公开(公告)日：2024-01-23
申请号：US17734176
申请日：2022-05-02
摘要： A pressure vessel includes a first container and a second container surrounding the first container and including a fluid port. The pressure vessel further includes a barrier space extending between the first container and the second container and a leak detection mechanism connected to the fluid port on the second container that is configured to detect a leak in the pressure vessel.
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公开(公告)号：US11781483B1
公开(公告)日：2023-10-10
申请号：US17735440
申请日：2022-05-03
发明人： Leo J. Veilleux, Jr.
CPC分类号： F02C7/232 , F02C7/228 , F02C7/236 , F02C9/263 , F05D2220/323
摘要： A valve having a first segment between a first outer wall and a first inner wall and has a first outer port near the first outer wall and a side port between the first inner and outer walls; a second segment between a second outer wall and a second inner wall and has a second outer port near the second outer wall; a center segment between the first and second inner walls, and a center port; and a piston within the valve, having: a first piston head in the first segment that slides to block and unblock the side port; a second piston head in the second segment that slides between the second inner and outer walls, the second piston head having a surface area that is the same as the first piston head; and a shaft connecting the first and second piston heads.
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