中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

251 records (took 0.029 seconds)

    ELASTOMERIC SIGNAL TRANSMISSION AND MOTION AMPLIFICATION
    191.
    发明专利
    ELASTOMERIC SIGNAL TRANSMISSION AND MOTION AMPLIFICATION 未知

    公开(公告)号：CA2836242A1

    公开(公告)日：2012-12-20

    申请号：CA2836242

    申请日：2011-06-13

    Applicant: BELL HELICOPTER TEXTRON INC

    Inventor： SCHANK TROY C ,  STAMPS FRANK B

    IPC: B64C27/615

    Abstract: A system and method to amplify displacement includes a housing forming a cylindrical chamber having an elastomeric material disposed therein. The chamber being sealed with a first membrane and a second membrane. The first membrane being attached to a first end having and the second membrane being attached to a second end, the first end having a greater diameter than the second end. The method including producing an input displacement with a driver attached to the first membrane, which in turn results in an amplified output displacement at the second end.

    ROTARY-WING AIRCRAFT TORQUE COUPLING WITH PAD BEARINGS
    192.
    发明专利
    ROTARY-WING AIRCRAFT TORQUE COUPLING WITH PAD BEARINGS 未知

    公开(公告)号：CA2662833C

    公开(公告)日：2012-12-04

    申请号：CA2662833

    申请日：2006-08-17

    Applicant: BELL HELICOPTER TEXTRON INC

    Inventor： STAMPS FRANK B ,  RAUBER RICHARD ,  POPELKA DAVID ,  TISDALE PAT ,  CAMPBELL TOM ,  BRASWELL JAMES LEE JR

    IPC: B64C27/35

    Abstract: A torque coupling for a rotor head of a rotary-wing aircraft is configured for rotation with a mast and for causing rotation of an attached yoke. The coupling has trunnions that rotate with the mast and extend generally radially. Pad-bearing assemblies each have a central member coupled to one of the trunnions with a laminated spherical bearing and have laminated pad bearings affixed to opposing sides of the central member. The laminated bearings have alternating rigid and elastomeric layers. A bearing mount is affixed to each pad bearing and is connected to a yoke for rotating the yoke with the mast. The pad-bearing assemblies allow for relative motion between each central member and the associated trunnion and between each central member and the bearing mounts through elastic shear deformation, and this allows for gimballing of the attached yoke relative to the mast.

    PYLON MOUNTING SYSTEM WITH VIBRATION ISOLATION
    193.
    发明专利
    PYLON MOUNTING SYSTEM WITH VIBRATION ISOLATION 未知

    公开(公告)号：CA2830898A1

    公开(公告)日：2012-10-18

    申请号：CA2830898

    申请日：2011-04-11

    Applicant: BELL HELICOPTER TEXTRON INC

    Inventor： SMITH MICHAEL R ,  SPEARS STEVEN ,  STAMPS FRANK B ,  SEIFERT MICHAEL S

    IPC: F16F9/10

    Abstract: A pylon mounting system with vibration isolation is provided. The system generally includes a housing that defines a first fluid chamber and a second fluid chamber, a fluid disposed within the fluid chambers; a piston assembly at least partially disposed within the housing, and a tuning passage defined by the piston assembly for providing fluid communication between the fluid chambers. The piston assembly has a first arm and a second arm, and each arm has a tubeform bearing for providing pitch and roll stiffness.

    A TEMPERATURE ADAPTIVE FLUID DAMPING SYSTEM
    194.
    发明专利
    A TEMPERATURE ADAPTIVE FLUID DAMPING SYSTEM 未知

    公开(公告)号：CA2828087A1

    公开(公告)日：2012-08-30

    申请号：CA2828087

    申请日：2011-02-24

    Applicant: BELL HELICOPTER TEXTRON INC

    Inventor： BOSWORTH JEFFREY ,  STAMPS FRANK B

    IPC: F16F9/00

    Abstract: A temperature adaptive fluid damping system is provided. One embodiment of the temperature adaptive fluid damping system comprises two fluid chambers, a piston in fluid communication with the fluid chambers, and a fluid path between the fluid chambers. An elastomeric retaining element adjacent to the fluid path is constrained to deform substantially perpendicular to the fluid path, so that the retaining element is operable to vary the cross-sectional area of the fluid path inversely to a change in temperature.

    WING EXTENSION CONTROL SURFACE
    197.
    发明专利
    WING EXTENSION CONTROL SURFACE 未知

    公开(公告)号：CA2754206A1

    公开(公告)日：2010-09-16

    申请号：CA2754206

    申请日：2009-03-12

    Applicant: BELL HELICOPTER TEXTRON INC

    Inventor： COLLINS BOB ,  STAMPS FRANK B ,  CORRINGAN JOHN J III ,  DREIER MARK E

    IPC: B64C27/22

    Abstract: A tiltrotor aircraft includes a rotatable nacelle that supports a rotor assembly and is pivotally attached to the aircraft's fuselage. A wing extension attaches to an outboard section of the nacelle. The wing extension provides additional yaw control during helicopter mode and additional lift during airplane mode. A method for controlling at least a portion of yaw movement includes positioning the rotor assembly in helicopter mode, creating rotor wash with the rotor assembly, and pivotally rotating the wing extension in the rotor wash.

    STIFF-IN-PLANE ROTOR CONFIGURATION
    198.
    发明专利
    STIFF-IN-PLANE ROTOR CONFIGURATION 未知

    公开(公告)号：CA2749118A1

    公开(公告)日：2010-07-22

    申请号：CA2749118

    申请日：2009-01-19

    Applicant: BELL HELICOPTER TEXTRON INC

    Inventor： STAMPS FRANK B ,  TISDALE PATRICK R ,  DONOVAN TOM ,  RAUBER RICHARD E

    IPC: B64C27/48

    Abstract: A rotor assembly for a rotary-wing aircraft, the rotor having a central hub assembly with a flexure-type, twist-shank yoke with multiple arms, each arm being adapted for a rotor blade to be mounted thereto. The arms provide for pitch changes of blades attached to the yoke through twisting of portions of the arms about a corresponding pitch axis. An inboard pitch bearing associated with each arm is attached to the hub assembly and allows for rotation of the attached blade about the pitch axis, the inboard pitch bearing also allowing for out-of-plane motion of the arm relative to the hub assembly about a flapping axis. An outboard pitch bearing associated with each arm is attached to the associated arm a selected distance from the inboard pitch bearing and allows for rotation of the attached blade about the pitch axis.

    YOKE AND BEARING FITTING ASSEMBLY FOR ROTORS
    199.
    发明专利
    YOKE AND BEARING FITTING ASSEMBLY FOR ROTORS 未知

    公开(公告)号：CA2749117A1

    公开(公告)日：2010-07-22

    申请号：CA2749117

    申请日：2009-01-19

    Applicant: BELL HELICOPTER TEXTRON INC

    Inventor： STAMPS FRANK B ,  TISDALE PATRICK R ,  CAMPBELL THOMAS C ,  RAUBER RICHARD E ,  BRASWELL JAMES L JR

    IPC: B64C27/04

    Abstract: A yoke and bearing fitting assembly for a multi-blade aircraft rotor is disclosed. The assembly has a yoke having arms extending generally radially from a central portion of the yoke, the arms each having opposing surfaces. An aperture is formed in each arm and extends between the surfaces. A bearing fitting has a body configured for insertion into the aperture of the yoke and has two rims protruding from a periphery of the body, the body also having a bearing mount adapted for mounting a pitch change bearing assembly to the yoke. Each rim abuts one of the surfaces of the associated yoke arm when the bearing fitting is installed within the aperture, so as to create clamping forces between the rims and the arm and the arm. The bearing fitting transmits forces from the pitch bearing assembly into the yoke.

Patent Agency Ranking