BLADE-PITCH CONTROL SYSTEM WITH INDEXING SWASHPLATE

    公开(公告)号:CA2830374A1

    公开(公告)日:2014-05-15

    申请号:CA2830374

    申请日:2013-10-16

    Abstract: The present application includes a blade-pitch control system with an indexing swashplate. A swashplate assembly has a non-rotating portion and a rotating portion and an indexing portion of the mast. The swashplate assembly is translatably affixed to the indexing portion. A pitch link connects the rotating portion of the swashplate assembly to each blade. Translation of the swashplate assembly along the indexing portion causes a change in pitch of the blades and a corresponding indexing of the rotating portion of the swashplate assembly relative to the mast, the indexing causing a change in an angular orientation of each pitch link, thus providing for selected pitch-flap coupling between flapping motion of the yoke and pitch motion of the blades.

    SYSTEM AND METHOD FOR VIBRATION ISOLATION

    公开(公告)号:CA2841971A1

    公开(公告)日:2014-02-23

    申请号:CA2841971

    申请日:2013-08-14

    Abstract: In accordance with one embodiment of the present disclosure, a system includes a first housing, a second housing, a seal, and a spring system. The first housing includes a first volume of fluid. The first housing is capable of connecting to a first element and to a second element, and is also capable of reducing an amount of movement transferred from the first element to the second element. The second housing is connected to the first housing. The second housing includes a second volume of fluid and a volume of gas. The first volume of fluid is in fluid communication with the second volume of fluid. The seal is capable of separating the second volume of fluid from the volume of gas. The spring system is capable of applying pressure to the first volume of fluid and the second volume of fluid.

    RESIN-IMPREGNATED, STRUCTURAL FIBER ROPE

    公开(公告)号:CA2716358C

    公开(公告)日:2014-02-11

    申请号:CA2716358

    申请日:2008-02-28

    Abstract: A resin-impregnated, structural fiber rope includes a plurality of tows disposed in a bundle, each of the plurality of tows including a plurality of structural fibers, and uncured polymeric resin impregnated into the bundle. Each of the plurality of structural fibers defines an angle with respect to a central axis of the rope of no more than about 10 degrees.

    AIRCRAFT ROTOR WITH DISCRETE FLAP HINGE

    公开(公告)号:CA2805167A1

    公开(公告)日:2013-10-25

    申请号:CA2805167

    申请日:2013-02-06

    Abstract: An aircraft rotor assembly has upper and lower hub plates adapted to be mounted to a central rotor mast for rotation therewith. A plurality of radial arms is connected to at least two flap bearings mounted between the hub plates and forming a discrete flap hinge, each flap hinge defining a flap axis and allowing rotation of the associated arm relative to the hub plates and about the corresponding flap axis. Each of a plurality of blade grips is rotatably connected to one of the arms for rotation about a pitch axis and adapted for mounting of a blade to each blade grip, such that each blade is capable of rotation with the grip about the pitch axis and capable of rotation together with the corresponding arm relative to the hub plates and about the corresponding flap axis.

    COAXIAL COUNTER-ROTATING ROTOR SYSTEM

    公开(公告)号:CA2805485A1

    公开(公告)日:2013-08-21

    申请号:CA2805485

    申请日:2013-02-08

    Abstract: A system and method to tilt coaxial counter-rotating rotor hub assemblies relative to a fuselage. The system includes a first rotor hub assembly and a second rotor hub assembly spaced apart from the first hub assembly and carried by the fuselage. The method includes pivotally attaching the first rotor hub assembly and the second rotor hub assembly to a pivot joint and thereafter tilting the first rotor hub assembly and the second rotor hub assembly about the pivot joint with a driver.

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