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    1.
    发明专利
    未知

    公开(公告)号：DE3878084T2

    公开(公告)日：1993-05-19

    申请号：DE3878084

    申请日：1988-07-14

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： FERRIS DONALD L ,  BYRNES FRANCIS E ,  VARHOLAK LAWRENCE N

    IPC: B64C27/605 ,  B64C27/32

    Abstract: The helicopter composite swashplate ring (3) has a triaxial braided tubular ring (9) that withstands both forces in-plane and normal to the plane of the swashplate. The triaxial braided tubular ring (9) comprises substantially circumferential fibers interwoven with angled fibers oriented at a predetermined angle to the circumferential fibers. The tubular ring (9) contains a composite circumferential spacer ring (6) that comprises an upper ring plate (12) connected to a lower ring plate (15) by a plurality of first tubular support members (18) The upper ring plate (12) and lower ring plate (15) are adjacent the inside upper and insider lower surfaces of the tubular ring (9), respectively. The upper and lower plates (12,15) have openings (21) in alignment with the first tubular support members (18). The ring plates (12, 15) have a plurality of sections (27) extending radially outward. The sections (27) have lug openings (30) that are in alignment with a plurality of second vertical support members (33) to form channels therethrough for accepting servo or control rod lugs.

    4.
    发明专利
    未知

    公开(公告)号：DE3528219A1

    公开(公告)日：1986-03-06

    申请号：DE3528219

    申请日：1985-08-06

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： FERRIS DONALD L ,  MARCHITTO MICHAEL J

    IPC: B64C27/72 ,  B64C27/58 ,  B64C27/605

    Abstract: Centering and stabilizing against rotation of a helicopter swashplate stationary ring are provided by spokes that are attached between the airframe and the stationary ring. When the swashplate tilts for cyclic control, the spokes bend and twist. When the swashplate translates for collective control, the spokes are required to lengthen and skew with respect to the swashplate. An elastomeric bearing having a cylindrical component to allow for skew and a shear pad to allow for lengthening attaches each spoke to the swashplate. The invention eliminates the need for the ball joint, standpipe and scissors associated with traditional swashplate centering techniques.

    BLADE FOLD RESTRAINT SYSTEM
    7.
    发明专利
    BLADE FOLD RESTRAINT SYSTEM 未知

    公开(公告)号：CA1121786A

    公开(公告)日：1982-04-13

    申请号：CA348047

    申请日：1980-03-20

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： FERRIS DONALD L

    IPC: B64C27/50

    Abstract: Blade Fold Restraint System In a fully articulated helicopter rotor head, utilizing an elastomeric bearing to support each rotor blade and react centrifugal flight loads, a blade restraint, effective in three axes is provided for use during blade folding for aircraft storage purposes. The restraint allows the blade to be folded through a predetermined fold plane, and held there while preventing or minimizing deflection of the elastomeric bearing.

    9.
    发明专利
    未知

    公开(公告)号：DE3877848T2

    公开(公告)日：1993-05-19

    申请号：DE3877848

    申请日：1988-07-14

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： FERRIS DONALD L ,  BYRNES FRANCIS E

    IPC: B64C27/35 ,  B64C27/32

    Abstract: The fiber reinforced braided composite main helicopter rotor hub retention plate has a fiber orientation that withstands forces both in the plane of the retention plate and normal to the plane. The retention plate comprises a fiber reinforced resin braided tubular ring (3) having substantially circumferential fibers interwoven with angled fibers disposed about a central core. Arms (24) extend inward from the braided ring (9) for attachment to a driveshaft.

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