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    • 5. 发明公开
    • Ultrasonic imaging device having a bearingless rotating mirror
    • Ultraschallabbildungsystem mit roteenndem lagerfreiem Spiegel
    • EP0882427A1
    • 1998-12-09
    • EP97201654.7
    • 1997-06-02
    • Seale, Joseph B.
    • Seale, Joseph B.
    • A61B8/12G10K11/35H02K7/09G01S7/521
    • F16C32/0493A61B8/12A61B8/4461H02K7/09H02K21/14
    • An ultrasonic imaging device including a bearingless levitating rotor for rotating a reflective mirror. The device may be used to image from within a hollow object and is particularly suited for use in intravascular imaging. The levitation of the rotor is achieved by forming the rotor as a permanent magnet structure having three distinct magnet regions, two having opposing dipole moments axial to the rotor orientation and one having a dipole moment transverse to the rotor orientation, the transverse magnetic region lying between the first and third magnetic regions. The rotor is radially centered within a housing using passive magnetic suspension elements, including permanent magnet stators at opposite ends of the housing. The rotor is axially positioned within the housing with an active servo feedback controller. Position-drive and sense coils are used to move and detect the positioning of the rotor. Rotation drive coils operate on the transverse magnetic region to cause the rotor to spin. The combination of the magnetic components and the coil detection, positioning, and rotation mechanism yields an imaging device with a rotor having no direct mechanical linkages.
    • 一种超声波成像装置,包括用于旋转反射镜的无轴承悬浮转子。 该装置可以用于从中空物体中成像,并且特别适用于血管内成像。 转子的悬浮通过将转子形成为具有三个不同的磁体区域的永磁体结构来实现,两个磁体区域具有与转子取向轴向相反的偶极矩,而具有横向于转子取向的偶极矩,横向磁区位于 第一和第三磁区。 转子在壳体内径向居中,使用无源磁悬浮元件,包括位于壳体相对两端的永磁定子。 转子通过主动伺服反馈控制器轴向定位在壳体内。 位置驱动和感测线圈用于移动和检测转子的定位。 旋转驱动线圈在横向磁性区域上工作,使转子旋转。 磁性部件和线圈检测,定位和旋转机构的组合产生具有不具有直接机械连接的转子的成像装置。
    • 10. 发明申请
    • ROTARY WING VTOL WITH FIXED WING FORWARD FLIGHT MODE
    • 带有固定箭头的旋转翼型垂直起飞模式
    • WO2016109408A1
    • 2016-07-07
    • PCT/US2015/067630
    • 2015-12-28
    • SEALE, Joseph, B.SLOAN, Walker, M.
    • SEALE, Joseph, B.SLOAN, Walker, M.
    • B64C27/24
    • B64C27/24B64C27/16B64C27/18B64C29/0033
    • An aircraft's two wings and joined thruster propellers or turbines serve as rotary wings in helicopter mode and as fixed wings in airplane mode. The thrusters along the wingspans or at the wing tips drive both rotary wing rotation and airplane flight. Large-angle controlled feathering about the pitch change axes of the left and right wings and thrusters allows them to rotate, relative to each other, between facing and thrusting forward in the same direction for airplane flight or facing and thrusting oppositely for helicopter flight. Optional controls include: helicopter cyclic and collective pitch; airplane roll by differential wing pitch; yaw by differential prop thrust; fuselage pitch by wing pitch change and prop thrust change interacting with an underslung craft e.g.; and fuselage yaw control independent of rotor rotation via a powered rotary mast coupling or a tail responsive to rotor downwash. A teetering rotor hub is a further option.
    • 一架飞机的两个翼和联合的推进器螺旋桨或涡轮机作为直升机模式的旋转翼和飞机模式下的固定翼。 沿翼展或翼尖的推进器驱动旋转翼旋转和飞机飞行。 围绕左右翼和推进器的俯仰变化轴的大角度控制羽化使得它们能够相对于彼此在相同方向上向前推动以进行飞机飞行或相对于直升机飞行而相反地旋转。 可选控制包括:直升机循环和集体音调; 飞行器通过差速机翼俯仰; 偏差由差速推力推力; 机翼间距通过机翼桨距改变和支撑推力变化与下冲的技术相互作用。 和机身偏航控制,独立于转子旋转,通过动力旋转柱杆联轴器或响应于转子下冲洗的尾部。 另一种选择是转向轮毂。