公开(公告)号：WO2007081337A3

公开(公告)日：2007-07-19

申请号：PCT/US2006/001082

申请日：2006-01-13

Applicant: BELL HELICOPTER TEXTRON INC. ,  RAUBER, Richard, E. ,  BRASWELL, James, L., Jr. ,  CAMPBELL, Thomas, C. ,  POPELKA, David, A. ,  SOUTHERLAND, Michael, J. ,  STAMPS, Frank, B. ,  STANNEY, Keith ,  TISDALE, Patrick, R. ,  WASIKOWSKI, Mark

Inventor： RAUBER, Richard, E. ,  BRASWELL, James, L., Jr. ,  CAMPBELL, Thomas, C. ,  POPELKA, David, A. ,  SOUTHERLAND, Michael, J. ,  STAMPS, Frank, B. ,  STANNEY, Keith ,  TISDALE, Patrick, R. ,  WASIKOWSKI, Mark

IPC: B64C27/48

Abstract: A rotor-hub for a rotary-wing aircraft is disclosed. The rotor-hub comprises a yoke comprising a plurality of yoke arms and a plurality of yoke straps, wherein the yoke arms are joined together by the yoke straps, and wherein a plurality of inner walls of the yoke define a central void space. A pitch horn is movably connected to the yoke and a portion of the pitch horn is located within the central void space. A connecting shell is fixedly attached to the yoke.

公开(公告)号：WO2006081181A2

公开(公告)日：2006-08-03

申请号：PCT/US2006/002284

申请日：2006-01-24

Applicant: BELL HELICOPTER TEXTRON INC. ,  STAMPS, Frank, B. ,  TISDALE, Patrick, R. ,  SHERRILL, Paul ,  RAUBER, Richard ,  CAMPBELL, Thomas, C. ,  BRASWELL, James, Lee, Jr. ,  MEASOM, Ron ,  HIROS, Tricia ,  POPELKA, David ,  SOUTHERLAND, Michael, J. ,  STANNEY, Keith ,  WASIKOWSKI, Mark ,  LEDBETTER, Tim

Inventor： STAMPS, Frank, B. ,  TISDALE, Patrick, R. ,  SHERRILL, Paul ,  RAUBER, Richard ,  CAMPBELL, Thomas, C. ,  BRASWELL, James, Lee, Jr. ,  MEASOM, Ron ,  HIROS, Tricia ,  POPELKA, David ,  SOUTHERLAND, Michael, J. ,  STANNEY, Keith ,  WASIKOWSKI, Mark ,  LEDBETTER, Tim

IPC: B64C27/50

CPC classification number: B64C27/48 ,  B64C27/33

Abstract: An assembly for providing flexure to a blade of a rotary blade system includes an upper support plate having an upper curved surface, a lower support plate having a lower curved surface, and a yoke positioned therebetween. At least one of the upper and lower yoke surfaces has a layer of cushioning material positioned thereon and secured thereto. An alternate embodiment includes an assembly for providing flexure to a blade of a rotary blade system, including, an upper support plate having an upper curved surface, a lower support plate having a lower curved surface, and a yoke positioned therebetween and directly contacting the support plates wherein one of the curved surfaces is a non-circular arc that does not form part of the circumference of a circle. Another alternate embodiment includes a similar assembly having a twist-shank type of yoke for providing rotation of attached blades about their respective pitch axes.

Abstract translation: 用于向旋转刀片系统的刀片提供挠曲的组件包括具有上曲面的上支撑板，具有下弯曲表面的下支撑板和位于其间的轭。 上和下轭表面中的至少一个具有定位在其上并固定到其上的缓冲材料层。 替代实施例包括用于向旋转刀片系统的刀片提供挠曲的组件，包括具有上曲面的上支撑板，具有下弯曲表面的下支撑板和位于其间的直接接触支撑件 其中一个弯曲表面是不形成圆周的一部分的非圆弧。 另一替代实施例包括具有扭转柄类型的轭的类似组件，用于提供附接刀片围绕它们各自的俯仰轴的旋转。

公开(公告)号：EP1971521B1

公开(公告)日：2012-11-07

申请号：EP06849210.7

申请日：2006-01-13

Applicant: Bell Helicopter Textron Inc.

Inventor： STAMPS, Frank, B. ,  RAUBER, Richard, E. ,  CAMPBELL, Thomas, C. ,  BRASWELL, James, L., Jr. ,  POPELKA, David, A. ,  STANNEY, Keith ,  SOUTHERLAND, Michael, J. ,  TISDALE, Patrick, R. ,  WASIKOWSKI, Mark

IPC: B64C27/48

CPC classification number: B64C29/0033 ,  B64C27/32 ,  B64C27/82

公开(公告)号：EP1971521A2

公开(公告)日：2008-09-24

申请号：EP06849210.7

申请日：2006-01-13

Applicant: Bell Helicopter Textron Inc.

Inventor： STAMPS, Frank, B. ,  RAUBER, Richard, E. ,  CAMPBELL, Thomas, C. ,  BRASWELL, James, L., Jr. ,  POPELKA, David, A. ,  STANNEY, Keith ,  SOUTHERLAND, Michael, J. ,  TISDALE, Patrick, R. ,  WASIKOWSKI, Mark

IPC: B64C27/32

CPC classification number: B64C29/0033 ,  B64C27/32 ,  B64C27/82

Abstract: A rotor-hub for a rotary-wing aircraft is disclosed. The rotor-hub comprises a yoke comprising a plurality of yoke arms and a plurality of yoke straps, wherein the yoke arms are joined together by the yoke straps, and wherein a plurality of inner walls of the yoke define a central void space. A pitch horn is movably connected to the yoke and a portion of the pitch horn is located within the central void space. A connecting shell is fixedly attached to the yoke.