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    GAS TURBINE ENGINE MOUNTING STRUCTURE WITH SECONDARY LOAD PATHS
    13.
    发明专利
    GAS TURBINE ENGINE MOUNTING STRUCTURE WITH SECONDARY LOAD PATHS 未知

    公开(公告)号：SG11201404043YA

    公开(公告)日：2014-10-30

    申请号：SG11201404043Y

    申请日：2013-02-05

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： ZHENG ZHIJUN ,  SANDY DAVID F

    IPC: B64D27/00 ,  B64D27/40

    Abstract: A connection for mounting an aircraft engine to an aircraft pylon includes a plate to be connected to a portion of an engine, and a body that extends rearward from the plate. A back-up connection, including a pin positioned within a slotted hole, is provided between the portion of the engine and the body. When there is a normal connection between the plate and the body, there is clearance between the pin and the slotted hole.

    COMBINED BEARING SUBUNIT FOR MAIN ROTORS OF UNMANNED FLYING VEHICLE
    14.
    发明专利
    COMBINED BEARING SUBUNIT FOR MAIN ROTORS OF UNMANNED FLYING VEHICLE 未知

    公开(公告)号：RU2113378C1

    公开(公告)日：1998-06-20

    申请号：RU95106358

    申请日：1993-06-18

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： CYPON JAMES P ,  HUNTER DAVID H ,  KOHLHEPP FRED W ,  KRAUSS TIMOTHY A ,  MILLEA VINCENT F ,  FURNES KENNETH M ,  FARRELL MARVIN D ,  SANDY DAVID F ,  BEATTY ROBERT D ,  HANSEN BRUCE D

    IPC: B64C11/02 ,  B64C27/20 ,  B64C27/33 ,  B64C27/605 ,  B64C39/02 ,  F02B75/02

    Abstract: FIELD: aircraft manufacture; designing of combined bearing subunits for unmanned flying vehicles. SUBSTANCE: combined subunit includes upper or lower main rotors and bush embracing the respective shaft and coaxial with it; end portion of shaft and surface of bush embracing it are provided with many radial splines which are external splines for shaft and inner splines for bush; splines of shaft and bush are mutually alternating providing for engagement between shaft and bush for setting it in rotation. Main rotor shaft is provided with main and end cylindrical parts of different diameter: D1 and D2 with taper adapter portion formed between them at angle of inclination beta of surface relative to shaft axis. According to invention, each spline of bush has lower portion bevelled outside forming angle theta relative to axis of bush which is equal to angle beta of taper adapter portion of shaft of main rotor. Bush rests on taper adapter portion of respective shaft by its bevelled lower portions of splines. Distance D3 of such combined subunit between edges of splines of main rotor shaft may be equal to diameter Dl of its main portion in diametral plane. EFFECT: optimization of construction of subunit. 2 cl, 32 dwg.

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