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1.发明申请公开(公告)号：US20200216183A1
公开(公告)日：2020-07-09
申请号：US16242479
申请日：2019-01-08
摘要： A rotary propulsion system includes a fan arranged along a rotation axis, an electric motor having windings and a permanent magnet arranged along the rotation axis and operatively connected to the fan, and a reduction gear set. The reduction gear set extends about the rotation axis and couples the electric motor to the fan. The permanent magnet is rotatable relative to the windings and the fan to rotate the fan using the electric motor at a rotational speed that is lower than a rotational speed of the permanent magnet. Aircraft and methods of propelling aircraft are also described.
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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：US20190301451A1
公开(公告)日：2019-10-03
申请号：US15939813
申请日：2018-03-29
摘要： A bearing carrier is provided. The bearing carrier including: a bearing body of a first material having a shaft-receiving aperture and a bridge land with a finger cut to channel fluid pressurized by intermeshing of gears rotatably supported by the bearing carrier into an outlet defined by a housing enveloping the bearing carrier, wherein the bearing body includes a bearing face configured to be in a facing spaced relationship with the gears, wherein the bearing face includes a second material integral with the first material, wherein at least one of the first material and the second material define a portion of the bearing face of the bearing body extending about the shaft-receiving aperture, the portion of the bearing face excluding the bridgeland.
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公开(公告)号：US10381886B2
公开(公告)日：2019-08-13
申请号：US15224753
申请日：2016-08-01
摘要： A motor-generator includes a double-sided stator having a first stator pole wound with a first stator winding of a first channel and a second stator pole wound with a second stator winding of a second channel. The first stator pole and the second stator pole are axially aligned with respect to a centerline of the motor-generator and radially offset between a radially inner side and a radially outer side of the double-sided stator. The motor-generator also includes at least one rotor radially disposed from the double-sided stator with respect to the centerline of the motor-generator.
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公开(公告)号：US20180274447A1
公开(公告)日：2018-09-27
申请号：US15990079
申请日：2018-05-25
摘要： In at least one aspect of this disclosure, a shut off valve for an ecology fuel return system can include an inlet for receiving a fluid, an outlet for effusing the fluid, and a valve member configured to move between an open position such that the valve member allows fluid to effuse from the outlet and a closed position such that the valve member prevents fluid from effusing from the outlet. The valve member can include a pressure deflector configured to prevent fluid flow from biasing the valve member toward the closed position.
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公开(公告)号：US20180209419A1
公开(公告)日：2018-07-26
申请号：US15411370
申请日：2017-01-20
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：US20180142685A1
公开(公告)日：2018-05-24
申请号：US15864569
申请日：2018-01-08
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. Methods fabricating a bearing carrier for a gear pump are also disclosed.
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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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