公开(公告)号：WO2009096964A1

公开(公告)日：2009-08-06

申请号：PCT/US2008/052546

申请日：2008-01-31

Applicant: BELL HELICOPTER TEXTRON INC. ,  HIROS, Tricia ,  STAMPS, Frank, Bradley ,  TISDALE, Pat ,  MEASOM, Ron ,  BRASWELL, Jim ,  CAMPBELL, Tom ,  OLDROYD, Paul, K. ,  BARBOUR, Richard

Inventor： HIROS, Tricia ,  STAMPS, Frank, Bradley ,  TISDALE, Pat ,  MEASOM, Ron ,  BRASWELL, Jim ,  CAMPBELL, Tom ,  OLDROYD, Paul, K. ,  BARBOUR, Richard

IPC: B64C27/00

CPC classification number: B64C27/32 ,  B64C27/33

Abstract: A method of making a rotor yoke includes preparing a cured composite rotor yoke preform on a single-sided curing tool and machining at least one portion of the cured rotor yoke preform to form a rotor yoke. In one embodiment, preparing the cured composite rotor yoke is accomplished by applying successive layers of uncured polymeric composite material to a single-sided tool in a configuration to produce an uncured rotor yoke preform; disposing a semi-rigid caul to an untooled side of the uncured rotor yoke preform; enclosing the uncured rotor yoke preform and the semi-rigid caul by substantially hermetically sealing a vacuum bag to the tool; substantially evacuating a volume defined by the vacuum bag and the tool of air; and heating the uncured rotor yoke preform, sometimes under pressure, to form the cured composite rotor yoke preform.

Abstract translation: 制造转子轭铁的方法包括在单侧固化工具上制备固化的复合转子轭预制件，并且对固化的转子轭预制件的至少一部分进行加工以形成转子轭。 在一个实施方案中，通过将未固化的聚合物复合材料的连续层施加到单面工具以制备未固化的转子轭预制件的构型来实现固化的复合转子轭的制备; 将半刚性盖子设置在未固化转子轭预制件的未固定侧; 通过将真空袋基本气密地密封到所述工具上来封装未固化的转子轭预制件和半刚性盖子; 基本上排空由真空袋和空气工具限定的体积; 有时在压力下加热未固化的转子轭预制件，以形成固化的复合转子轭预制件。

公开(公告)号：EP2234880A1

公开(公告)日：2010-10-06

申请号：EP08728622.5

申请日：2008-01-31

Applicant: Bell Helicopter Textron Inc.

Inventor： HIROS, Tricia ,  STAMPS, Frank, Bradley ,  TISDALE, Pat ,  MEASOM, Ron ,  BRASWELL, Jim ,  CAMPBELL, Tom ,  OLDROYD, Paul, K. ,  BARBOUR, Richard

IPC: B64C27/00

CPC classification number: B64C27/32 ,  B64C27/33

Abstract: A method of making a rotor yoke includes preparing a cured composite rotor yoke preform on a single-sided curing tool and machining at least one portion of the cured rotor yoke preform to form a rotor yoke. In one embodiment, preparing the cured composite rotor yoke is accomplished by applying successive layers of uncured polymeric composite material to a single-sided tool in a configuration to produce an uncured rotor yoke preform; disposing a semi-rigid caul to an untooled side of the uncured rotor yoke preform; enclosing the uncured rotor yoke preform and the semi-rigid caul by substantially hermetically sealing a vacuum bag to the tool; substantially evacuating a volume defined by the vacuum bag and the tool of air; and heating the uncured rotor yoke preform, sometimes under pressure, to form the cured composite rotor yoke preform.

公开(公告)号：EP2234880B1

公开(公告)日：2014-04-23

申请号：EP08728622.5

申请日：2008-01-31

Applicant: Bell Helicopter Textron Inc.

Inventor： HIROS, Tricia ,  STAMPS, Frank, Bradley ,  TISDALE, Pat ,  MEASOM, Ron ,  BRASWELL, Jim ,  CAMPBELL, Tom ,  OLDROYD, Paul, K. ,  BARBOUR, Richard

IPC: B64C27/00 ,  B64C27/32

CPC classification number: B64C27/32 ,  B64C27/33