-
公开(公告)号：US20200031086A1
公开(公告)日：2020-01-30
申请号：US16048869
申请日：2018-07-30
IPC分类号： B32B1/08 , B64C27/473 , B64C3/18 , B32B27/08
摘要： Embodiments are directed to systems and methods for two or more cured composite assemblies that are bonded together to form a tubular composite structure, wherein each of the cured composite assemblies do not have a tubular shape. The tubular composite structure may form a spar for an aerodynamic component, for example. The two or more cured composite assemblies may comprise carbon or fiberglass composite materials or a combination of materials. Each of the cured composite assemblies may further comprise axial edges that are configured to be bonded to another of the cured composite assemblies, wherein the axial edges have a sloped shape. An adhesive agent may be applied on the axial edges for bonding two cured composite assemblies. Alternatively, or additionally, one or more fasteners may be used to attach the axial edges of at least two cured composite assemblies.
-
公开(公告)号：US20180095005A1
公开(公告)日：2018-04-05
申请号：US15285569
申请日：2016-10-05
CPC分类号： G01M13/04 , B64C27/35 , F16C41/00 , F16C2233/00 , F16C2326/43 , G01J5/0022
摘要： The present invention includes an apparatus and method for measuring hysteretic heating or stress of one or more bearings of a craft comprising: one or more non-contact temperature sensors attached to the craft and directed toward the one or more bearings; and a computer connected to the one or more non-contact temperature sensors that measure the temperature, the stress, or both of the one or more bearings before, during, or after operation of the craft, wherein the one or more non-contact temperature sensors measure a change in temperature in the one or more bearings to monitor for heating or stress of the bearings.
-
公开(公告)号：US10507912B2
公开(公告)日：2019-12-17
申请号：US15990622
申请日：2018-05-26
摘要： A proprotor system for a tiltrotor aircraft includes a yoke having a plurality of blade arms each having an inboard pocket. Each of a plurality of bearing assemblies is disposed at least partially within one of the inboard pockets. Each of a plurality of inboard beams is disposed at least partially between a centrifugal force bearing and a shear bearing of each bearing assembly and has a proprotor blade coupled thereto. Each of a plurality of latch assemblies selectively couples one of the bearing assemblies to the yoke. Each latch assembly is rotatable relative to the yoke between an engaged position wherein the latch assembly is engagable with one of the bearing assemblies to couple the bearing assembly to the yoke and a disengaged position wherein the latch assembly is disengaged from the respective bearing assembly enabling installation and removal of the respective bearing assembly relative to the respective pocket.
-
公开(公告)号：US10239605B2
公开(公告)日：2019-03-26
申请号：US15269739
申请日：2016-09-19
摘要： An apparatus for chordwise folding and locking of rotor systems includes a grip assembly and a harness disposed at least partially within and coupled to the grip assembly. A rotor blade is rotatably coupled to the grip assembly and the harness. The rotor blade has a radially extended orientation and a stowed orientation. A linkage assembly has a first end, a second end and a pivot joint therebetween. The first end of the linkage assembly is rotatably coupled to the harness and the second end of the linkage assembly is rotatably coupled to the rotor blade. A first lock assembly selectively secures the rotor blade to the grip assembly and the harness when the rotor blade is in the radially extended orientation. A second lock assembly selectively secures the rotor blade relative to the harness when the rotor blade is in the stowed orientation.
-
公开(公告)号：US10023294B2
公开(公告)日：2018-07-17
申请号：US14747205
申请日：2015-06-23
发明人： Matthew Carl VanBuskirk , Michael Scott Seifert , Michael Christopher Burnett , Mark Loring Isaac
摘要： According to one embodiment, an empennage attachment system features an aft attachment mechanism and a forward attachment system. The aft attachment mechanism is configured to be coupled to a tail section of a body of an aircraft and to an empennage proximate to an aft spar of the empennage. The aft attachment mechanism defines a pitch axis such that the aft attachment mechanism allows the empennage to rotate about the pitch axis. The forward attachment system is configured to be coupled to the tail section of the body and to the empennage proximate to a forward spar of the empennage. The forward attachment system is configured to restrict rotation of the empennage about the pitch axis to an allowable range of motion.
-
公开(公告)号：US20180079490A1
公开(公告)日：2018-03-22
申请号：US15269739
申请日：2016-09-19
IPC分类号： B64C11/28
CPC分类号： B64C11/28 , B64C27/50 , B64C29/0033
摘要： An apparatus for chordwise folding and locking of rotor systems includes a grip assembly and a harness disposed at least partially within and coupled to the grip assembly. A rotor blade is rotatably coupled to the grip assembly and the harness. The rotor blade has a radially extended orientation and a stowed orientation. A linkage assembly has a first end, a second end and a pivot joint therebetween. The first end of the linkage assembly is rotatably coupled to the harness and the second end of the linkage assembly is rotatably coupled to the rotor blade. A first lock assembly selectively secures the rotor blade to the grip assembly and the harness when the rotor blade is in the radially extended orientation. A second lock assembly selectively secures the rotor blade relative to the harness when the rotor blade is in the stowed orientation.
-
公开(公告)号：US11009080B2
公开(公告)日：2021-05-18
申请号：US15916134
申请日：2018-03-08
发明人： Tyler Wayne Baldwin , Ryan T. Ehinger , Jared Mark Paulson , Michael Christopher Burnett , Kyle Thomas Cravener
摘要： A link includes an outer composite portion substantially encircling at least two bearing pockets and a central substantially incompressible portion disposed between the at least two bearing pockets.
-
公开(公告)号：US10787267B2
公开(公告)日：2020-09-29
申请号：US15608385
申请日：2017-05-30
摘要： The present invention includes a first barrier layer configured to cover a leading edge of the blade or wing; one or more electrical bus bars disposed on the first barrier layer proximate to and substantially parallel with the leading edge; a ground bus bar disposed on the first barrier layer proximate to and substantially parallel with the leading edge; a second barrier layer disposed over the one or more electrical bus bars and the ground bus bar; one or more heating elements disposed on the second barrier layer, and each heating element electrically connected to one of the electrical bus bars and to the ground bus bar; and a third barrier layer disposed over the one or more heating elements.
-
公开(公告)号：US10421540B1
公开(公告)日：2019-09-24
申请号：US15447966
申请日：2017-03-02
摘要： A tiltrotor aircraft is operable in a helicopter flight mode and an airplane flight mode. The tiltrotor aircraft has an airframe including a fuselage and a wing. First and second pylon assemblies are respectively coupled to the airframe proximate outboard ends of the wing. Each pylon assembly includes a mast and a proprotor assembly operable to rotate with the mast to generate thrust. The pylon assemblies are rotatable relative to the wing to selectively operate the tiltrotor aircraft between the helicopter flight mode and the airplane flight mode. The thrust of each proprotor assembly has a thrust vector with an inboard angle between about 5 degrees and about 12 degrees relative to an axis parallel to the yaw axis during hover operations, thereby reducing download on the airframe and improving hover efficiency.
-
公开(公告)号：US20190016455A1
公开(公告)日：2019-01-17
申请号：US15990622
申请日：2018-05-26
CPC分类号： B64C29/0033 , B64C11/06 , B64C27/35 , F16C17/10 , F16C33/06 , F16C2326/43
摘要： A proprotor system for a tiltrotor aircraft includes a yoke having a plurality of blade arms each having an inboard pocket. Each of a plurality of bearing assemblies is disposed at least partially within one of the inboard pockets. Each of a plurality of inboard beams is disposed at least partially between a centrifugal force bearing and a shear bearing of each bearing assembly and has a proprotor blade coupled thereto. Each of a plurality of latch assemblies selectively couples one of the bearing assemblies to the yoke. Each latch assembly is rotatable relative to the yoke between an engaged position wherein the latch assembly is engagable with one of the bearing assemblies to couple the bearing assembly to the yoke and a disengaged position wherein the latch assembly is disengaged from the respective bearing assembly enabling installation and removal of the respective bearing assembly relative to the respective pocket.
-
-
-
-
-
-
-
-
-
搜索结果
24 条记录 (耗时 0.017 秒)
