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19 条记录 (耗时 0.019 秒)

    Controlled pump augmentation for active vibration isolation
    1.
    发明授权
    Controlled pump augmentation for active vibration isolation 有权

    公开(公告)号：US10012217B2

    公开(公告)日：2018-07-03

    申请号：US14717516

    申请日：2015-05-20

    申请人： Bell Helicopter Textron Inc.

    发明人： David E. Heverly, II ,  Taeoh Lee

    IPC分类号： F16F9/512 ,  F16F15/02 ,  F04B1/00 ,  F04B11/00 ,  F04B53/00 ,  F16F9/00

    CPC分类号： F04B1/00 ,  B64C2027/004 ,  F04B11/00 ,  F04B11/005 ,  F04B53/001 ,  F16F9/00 ,  F16F9/46 ,  F16F13/16

    摘要： A vibration isolation system includes a vibration isolator configured to flow a fluid. A fluid pumping system is connected to the vibration isolator. The fluid pumping system includes a fluid flow pathway configured to flow the fluid to the vibration isolator. The fluid pumping system includes a piston assembly positioned in the fluid flow pathway. The piston assembly includes a first piston and a second piston configured to displace the fluid in opposite directions through the fluid flow pathway. The vibration isolation system includes a fluid flow augmentation system, which includes an eccentric member positioned between the first piston and the second piston. The fluid flow augmentation system is configured to control a flow of the fluid to the vibration isolator through the fluid flow pathway by controlling a displacement of the first piston and the second piston through at least a partial rotation of the eccentric member.

    Helicopter transmission mount system
    2.
    发明授权
    Helicopter transmission mount system 有权
    直升机传输安装系统

    公开(公告)号：US09254914B2

    公开(公告)日：2016-02-09

    申请号：US14086446

    申请日：2013-11-21

    申请人： Bell Helicopter Textron Inc.

    发明人： Matthew W. Hendricks ,  Maurice D. Griffin ,  Michael R. Smith ,  Taeoh Lee

    IPC分类号： B64C27/00 ,  F16F15/10

    CPC分类号： B64C27/001 ,  B64C2027/002 ,  B64C2027/004 ,  F16F15/10

    摘要： A restraint system for a transmission in an aircraft can include a first strut having a first fluid chamber, a first piston resiliently coupled to a first housing with a first elastomeric member. The restraint system can include a second strut having second fluid chamber, a second piston resiliently coupled to a second housing with a second elastomeric member. The restraint system can include a fluid line between the first fluid chamber and the second fluid chamber. The first strut and the second strut collectively provide not only torque restraint, but also torque measurement and fore/aft vibration isolation.

    摘要翻译： 用于飞行器中的变速器的约束系统可以包括具有第一流体室的第一支柱，与第一弹性体构件弹性地联接到第一壳体的第一活塞。 约束系统可以包括具有第二流体室的第二支柱，与第二弹性构件弹性地联接到第二壳体的第二活塞。 约束系统可以包括在第一流体室和第二流体室之间的流体管线。 第一支柱和第二支柱不仅集中提供扭矩约束，而且还提供扭矩测量和前/后隔振。

    Liquid inertia vibration mount
    3.
    发明授权
    Liquid inertia vibration mount 有权
    液体惯性振动安装

    公开(公告)号：US09249856B1

    公开(公告)日：2016-02-02

    申请号：US14218521

    申请日：2014-03-18

    申请人： Bell Helicopter Textron Inc.

    发明人： Taeoh Lee ,  Maurice D. Griffin ,  Michael R. Smith ,  Michael Seifert

    IPC分类号： F16F13/08

    CPC分类号： F16F13/24 ,  B64C27/001 ,  B64C2027/004 ,  F16F2224/04

    摘要： A vibration isolator can include an upper housing defining an upper fluid chamber; a lower housing defining a lower fluid chamber; a piston resiliently coupled to the upper housing with an upper elastomer member, the piston being resiliently coupled to the lower housing with a lower elastomer member; a tuning passage associated with the piston; and a tuning fluid disposed within the upper fluid chamber, the lower fluid chamber, and the tuning passage, the tuning fluid comprising a polytungstate.

    摘要翻译： 隔振器可以包括限定上流体室的上壳体; 限定下部流体室的下部壳体; 活塞通过上弹性体弹性地联接到上壳体，活塞用下弹性体弹性地联接到下壳体; 调节通道与活塞相关联; 以及设置在上流体室内的调谐流体，下流体室和调谐通道，调谐流体包括多钨酸盐。

    ROTORCRAFT VIBRATION SUPPRESSION SYSTEM IN A FOUR CORNER PYLON MOUNT CONFIGURATION
    5.
    发明申请
    ROTORCRAFT VIBRATION SUPPRESSION SYSTEM IN A FOUR CORNER PYLON MOUNT CONFIGURATION 有权
    四角墩安装配置中的ROTORCRAFT振动抑制系统

    公开(公告)号：US20130270415A1

    公开(公告)日：2013-10-17

    申请号：US13736687

    申请日：2013-01-08

    申请人： BELL HELICOPTER TEXTRON INC.

    发明人： Taeoh Lee ,  David E. Heverly, II ,  Matthew W. Hendricks ,  Maurice Griffin ,  Michael R. Smith

    IPC分类号： F16F7/00

    CPC分类号： F16F7/00 ,  B64C27/001 ,  B64C2027/002 ,  F16F13/24

    摘要： The vibration suppression system includes a vibration isolator located in each corner in a four corner pylon mount structural assembly. The combination of four vibration isolators, two being forward of the transmission, and two being aft of the transmission, collectively are effective at isolating main rotor vertical shear, pitch moment, as well as roll moment induced vibrations. Each opposing pair of vibration isolators can efficiently react against the moment oscillations because the moment can be decomposed into two antagonistic vertical oscillations at each vibration isolator. A pylon structure extends between a pair of vibration isolators thereby allowing the vibration isolators to be spaced a away from a vibrating body to provide increased control.

    摘要翻译： 振动抑制系统包括位于四角塔架安装结构组件的每个角落中的隔振器。 四个隔振器的组合，两个位于变速器前方，两个位于变速器的后面，共同有效地隔离主转子垂直剪切，俯仰力矩以及滚动力矩引起的振动。 每个相对的隔振器对可以有效地反应瞬间振动，因为瞬间可以在每个隔振器处分解成两个对立的垂直振荡。 吊架结构在一对隔振器之间延伸，从而允许隔振器与振动体隔开，以提供增加的控制。

    ACTIVE VIBRATION ISOLATION WITH DIRECT FLUID ACTUATION
    10.
    发明申请
    ACTIVE VIBRATION ISOLATION WITH DIRECT FLUID ACTUATION 有权
    主动振动隔离与直接流体驱动

    公开(公告)号：US20160280363A1

    公开(公告)日：2016-09-29

    申请号：US14666574

    申请日：2015-03-24

    申请人： Bell Helicopter Textron Inc.

    发明人： David E. Heverly, II ,  Taeoh Lee ,  Michael R. Smith ,  James E. Wright

    IPC分类号： B64C27/00 ,  F16F9/10 ,  F16F9/504

    CPC分类号： B64C27/001 ,  B64C2027/002 ,  B64C2027/004 ,  F16F7/1034 ,  F16F9/10 ,  F16F9/504 ,  F16F2222/08 ,  F16F2238/04

    摘要： A method of isolating vibrations between vibrating bodies includes determining a pressure differential between a first fluid chamber and a second fluid chamber of a liquid inertia vibration eliminator (LIVE) unit, and selectively injecting fluid into or withdrawing fluid from the LIVE unit based on the pressure differential. A system for isolating vibrations between bodies includes a vibration isolator including fluid, a fluid regulator valve in fluid communication with the vibration isolator to selectively flow fluid through the vibration isolator, a pressurized fluid source in fluid communication with the fluid regulator to supply fluid to the fluid regulator, a controller in signal communication with the fluid regulator to control fluid flow between the fluid regulation valve and the vibration isolator, and at least one sensor in signal communication with the controller.

    摘要翻译： 隔离振动体之间的振动的方法包括确定液体惯性减振器（LIVE）单元的第一流体室和第二流体室之间的压力差，并且基于压力选择性地将流体从LIVE单元注入流体或从LIVE单元抽出流体 微分。 用于隔离主体之间的振动的系统包括：包括流体的隔振器，与隔振器流体连通的流体调节阀，以选择性地流动通过隔振器的流体;与流体调节器流体连通的加压流体源，以向 流体调节器，与流体调节器信号通信的控制器，以控制流体调节阀和隔振器之间的流体流动，以及与控制器信号通信的至少一个传感器。