公开(公告)号：US20160341226A1

公开(公告)日：2016-11-24

申请号：US14717516

申请日：2015-05-20

Applicant: Bell Helicopter Textron Inc.

Inventor： David E. Heverly, II ,  Taeoh Lee

IPC: F15B15/22

CPC classification number: F04B1/00 ,  F04B11/00 ,  F04B11/005 ,  F04B53/001 ,  F16F9/00

Abstract: 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.

Abstract translation: 振动隔离系统包括配置成流动流体的隔振器。 流体泵送系统连接到隔振器。 流体泵送系统包括被配置为将流体流动到隔振器的流体流动通道。 流体泵送系统包括位于流体流动路径中的活塞组件。 活塞组件包括第一活塞和第二活塞，第二活塞构造成使流体沿相反方向移动通过流体流动路径。 该隔振系统包括流体流量增加系统，其包括定位在第一活塞和第二活塞之间的偏心构件。 流体流量增加系统构造成通过至少部分偏心构件的旋转来控制第一活塞和第二活塞的位移，从而通过流体流动路径控制流体到隔振器的流动。

公开(公告)号：US09145946B2

公开(公告)日：2015-09-29

申请号：US13840408

申请日：2013-03-15

Applicant: Bell Helicopter Textron Inc.

Inventor： David E. Heverly, II ,  Taeoh Lee

IPC: F16F15/027 ,  F16F9/512 ,  B64C27/00

CPC classification number: F16F15/0275 ,  B64C27/001 ,  B64C2027/002 ,  B64C2027/004 ,  F16F9/5126 ,  F16F15/027

Abstract: An apparatus includes an active vibration isolation system that includes a vibration isolator, a dual fluid pump in fluid communication with the vibration isolator and a hydraulic system, wherein the dual fluid pump is configured to segregate a tuning fluid from a hydraulic fluid and an electric-hydraulic servo valve in fluid communication with the dual fluid pump.

Abstract translation: 一种装置包括主动隔振系统，其包括隔振器，与隔振器流体连通的双流体泵和液压系统，其中双流体泵构造成将调节流体与液压流体和电动液体隔离， 液压伺服阀与双流体泵流体连通。

公开(公告)号：US20200324883A1

公开(公告)日：2020-10-15

申请号：US16383161

申请日：2019-04-12

Applicant: Bell Helicopter Textron Inc.

Inventor： Michael Reaugh Smith ,  Frank B. Stamps ,  David E. Heverly, II

IPC: B64C27/00 ,  F16F7/10 ,  F16F13/26 ,  F16F13/22 ,  F16F15/027

Abstract: In some examples, an oscillatory pumping system comprises: one or more active piston, a fluid, and two motors. The one or more active piston is disposed in a channel fluidically coupling two fluid chambers. The passive piston has a frequency response operable to counteract a vibratory displacement. The fluid is disposed in the channel and the two fluid chambers. The two motors couple to the one or more active piston. The two motors are operable to selectively change the frequency response of the passive piston based on oscillating the one or more active piston.

公开(公告)号：US10301010B2

公开(公告)日：2019-05-28

申请号：US15298693

申请日：2016-10-20

Applicant: Bell Helicopter Textron Inc.

Inventor： David E. Heverly, II

IPC: B64C27/00 ,  F04C2/10 ,  F04C14/14 ,  F04C15/06

Abstract: An oscillating pump system includes a pump operable to circulate a fluid. The pump has a first port stage including an inlet port and an outlet port and a second port stage including a first oscillating port and a second oscillating port. An oscillator disk is disposed between the first port stage and the second port stage. The oscillator disk is rotatable relative to the inlet port, the outlet port, the first oscillating port and the second oscillating port. During rotation, the oscillator disk alternatingly routes the fluid to the inlet port from the first and second oscillating ports and alternatingly routes the fluid from the outlet port to the first and second oscillating ports, thereby generating oscillating fluid flow.

公开(公告)号：US20160083088A1

公开(公告)日：2016-03-24

申请号：US14494036

申请日：2014-09-23

Applicant: BELL HELICOPTER TEXTRON INC.

Inventor： David E. Heverly, II ,  Frank B. Stamps ,  Michael Smith

IPC: B64C27/635 ,  B64C27/64 ,  B64C27/51

CPC classification number: B64C27/635 ,  B64C27/51

Abstract: A rotor system includes a hub assembly, a first, second, and third rotor blade rotatably attached to the hub assembly, a first, second, and third damper pivotally attached to the hub assembly and pivotally attached to the first, second, and third rotor blade, respectively, and a control system operably associated with the first, second, and third damper. A method to control vibratory forces exerted on the hub assembly via the first and second rotor blade includes separately controlling a dynamic spring rate of each of the first and second dampers with the control system.

Abstract translation: 转子系统包括轮毂组件，可旋转地附接到轮毂组件的第一，第二和第三转子叶片，枢转地附接到轮毂组件并枢转地附接到第一，第二和第三转子的第一，第二和第三阻尼器 刀片，以及与第一，第二和第三阻尼器可操作地相关联的控制系统。 控制经由第一和第二转子叶片施加在轮毂组件上的振动力的方法包括用控制系统分别控制第一和第二阻尼器中的每一个的动态弹簧刚度。

公开(公告)号：US20150308534A1

公开(公告)日：2015-10-29

申请号：US14259757

申请日：2014-04-23

Applicant: Bell Helicopter Textron Inc.

Inventor： Michael Smith ,  Frank Bradley Stamps ,  Taeoh Lee ,  David E. Heverly, II

IPC: F16F7/10 ,  B64C27/00

CPC classification number: F16F7/1034 ,  B64C27/001 ,  B64C2027/002

Abstract: A rotorcraft vibration isolation system includes a plurality of liquid inertia vibration elimination (LIVE) units mounted on a first rotorcraft surface, an accumulator mounted on a second rotorcraft surface at a location that is remote from locations of the plurality of LIVE units, and a fluid passage to connect the accumulator to the plurality of LIVE units in parallel. The fluid passage has sufficient length to traverse between the location of the accumulator and each location of each LIVE unit. During rotorcraft operation, the second rotorcraft surface experiences lesser periodic vibration than the first rotorcraft surface.

Abstract translation: 旋翼航空器的隔振系统包括安装在第一旋翼飞机表面上的多个液体惯性振动消除（LIVE）单元，在远离多个LIVE单元的位置的位置处安装在第二旋翼航空器表面上的蓄能器，以及流体 通道将蓄能器并联连接到多个LIVE单元。 流体通道具有足够的长度以在蓄能器的位置和每个LIVE单元的每个位置之间穿过。 在旋翼航空器操作期间，第二旋翼飞机表面经历比第一旋翼飞机表面更小的周期性振动。

公开(公告)号：US20140263825A1

公开(公告)日：2014-09-18

申请号：US13840408

申请日：2013-03-15

Applicant: Bell Helicopter Textron Inc.

Inventor： David E. Heverly, II ,  Taeoh Lee

IPC: F16F15/027 ,  B64D27/00 ,  F16F9/512

CPC classification number: F16F15/0275 ,  B64C27/001 ,  B64C2027/002 ,  B64C2027/004 ,  F16F9/5126 ,  F16F15/027

Abstract: An apparatus is disclosed includes an active vibration isolation system that includes a vibration isolator, a dual fluid pump in fluid communication with the vibration isolator and a hydraulic system, wherein the dual fluid pump is configured to segregate a tuning fluid from a hydraulic fluid and an electric-hydraulic servo valve in fluid communication with the dual fluid pump.

Abstract translation: 所公开的装置包括主动隔振系统，其包括隔振器，与隔振器流体连通的双流体泵和液压系统，其中双流体泵构造成将调节流体与液压流体和 电液伺服阀与双流体泵流体连通。