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公开(公告)号：US5369882A
公开(公告)日：1994-12-06
申请号：US144368
申请日：1993-11-02
CPC分类号： F01D5/22 , Y02T50/671 , Y02T50/673 , Y10S416/50 , Y10T29/49318 , Y10T29/49321 , Y10T29/49325
摘要： A generally wedge-shaped vibration damper for rotor blades of a gas turbine engine has a pair of scrubbing surfaces and is loosely retained in a pocket incorporated in the rotor blade platform. The pocket is partly defined by a plurality of surfaces which orient the damper so that it is slidably displaceable and rotatable only in a predetermined plane. During rotation of the rotor disk, the damper of one rotor blade is displaced in a plane transverse to the rotor axis of rotation by centrifugal forces to a position at which one scrubbing surface of the damper abuts a side surface of the platform of the adjacent rotor blade and the other scrubbing surface abuts an inner surface of the platform of the rotor blade in which the damper is inserted. The scrubbing action of the damper serves to damp vibratory motion in the platforms of both blades.
摘要翻译： 用于燃气涡轮发动机的转子叶片的大致楔形振动阻尼器具有一对擦洗表面，并且松散地保持在并入转子叶片平台中的凹穴中。 口袋部分地由多个表面限定，这些表面使阻尼器定向，使得其仅在预定平面内可滑动地移位和旋转。 在转子盘的旋转期间，一个转子叶片的阻尼器在垂直于转子旋转轴线的平面中通过离心力移动到阻尼器的一个擦洗表面抵靠相邻转子的平台的侧表面的位置 叶片和另一个擦洗表面邻接在其中插入阻尼器的转子叶片的平台的内表面。 阻尼器的擦洗动作用于减弱两个叶片的平台中的振动运动。
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公开(公告)号：US5302085A
公开(公告)日：1994-04-12
申请号：US830143
申请日：1992-02-03
CPC分类号： F01D5/22 , Y02T50/671 , Y02T50/673 , Y10S416/50 , Y10T29/49318 , Y10T29/49321 , Y10T29/49325
摘要： A generally wedge-shaped vibration damper for rotor blades of a gas turbine engine has a pair of scrubbing surfaces and is loosely retained in a pocket incorporated in the rotor blade platform. The pocket is partly defined by a plurality of surfaces which orient the damper so that it is slidably displaceable and rotatable only in a predetermined plane. During rotation of the rotor disk, the damper of one rotor blade is displaced in a plane transverse to the rotor axis of rotation by centrifugal forces to a position at which one scrubbing surface of the damper abuts a side surface of the platform of the adjacent rotor blade and the other scrubbing surface abuts an inner surface of the platform of the rotor blade in which the damper is inserted. The scrubbing action of the damper serves to damp vibratory motion in the platforms of both blades.
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公开(公告)号：US06375421B1
公开(公告)日：2002-04-23
申请号：US09710656
申请日：2000-11-09
申请人： Andrew J. Lammas , Philip W. Dietz
发明人： Andrew J. Lammas , Philip W. Dietz
IPC分类号： F01D102
CPC分类号： F04D29/644 , F01D5/005 , F01D5/025 , F01D5/34 , F04D29/321 , F05D2230/642 , F05D2230/70 , F05D2230/80 , Y02T50/671 , Y02T50/673
摘要： A compressor rotor includes coaxially adjoining disks having corresponding rows of rotor blades. A forward shaft is affixed to a forward disk and includes an annular seat for being mounted in a bearing to support the rotor at its forward end. A blisk coaxially surrounds the shaft axially between the seat and forward disk, and is removably fixedly joined piggyback to the shaft. In a repair method, the blisk may be removed from the compressor rotor without requiring teardown of the compressor rotor itself.
摘要翻译： 压缩机转子包括具有相应行转子叶片的同轴相邻盘。 前轴固定到前盘，并且包括一个环形座，用于安装在轴承中以支撑转子在其前端。 叶片同轴地轴套在座椅和前盘之间围绕轴，并且可拆卸地固定地连接到轴上。 在修理方法中，叶片可以从压缩机转子中移除，而不需要拆除压缩机转子本身。
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公开(公告)号：US5261790A
公开(公告)日：1993-11-16
申请号：US830146
申请日：1992-02-03
申请人： Philip W. Dietz , John R. Staker
发明人： Philip W. Dietz , John R. Staker
CPC分类号： F01D5/22 , Y02T50/671 , Y02T50/673 , Y10S416/50
摘要： A generally wedge-shaped vibration damper for rotor blades of a gas turbine engine has a pair of scrubbing surfaces and is loosely retained in a pocket incorporated in the root cavity. The pocket is partly defined by a plurality of surfaces which orient the damper so that it is slidably displaceable and rotatable only in a predetermined plane. The retaining device is a hook-shaped sheet metal clip which is attached to the damping member. The clip has a resilient curved portion which is compressed to pass through a throat by which the pocket communicates with the remainder of the root cavity. When the curved portion of the clip clears the throat, it springs back to its uncompressed state in which the height of the curved portion is greater than the height of the throat, whereby the damping member is retained in the pocket.
摘要翻译： 用于燃气涡轮发动机的转子叶片的大致楔形振动阻尼器具有一对擦洗表面，并且松散地保持在结合在根腔中的凹穴中。 口袋部分地由多个表面限定，这些表面使阻尼器定向，使得其仅在预定平面内可滑动地移位和旋转。 保持装置是附接到阻尼构件的钩状金属片夹。 夹子具有弹性弯曲部分，其被压缩以通过喉部，通过该喉部口袋与根腔的其余部分连通。 当夹子的弯曲部分清除喉部时，其弹回到其未弯曲状态，其中弯曲部分的高度大于喉部的高度，由此阻尼构件保持在口袋中。
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公开(公告)号：US5215442A
公开(公告)日：1993-06-01
申请号：US770839
申请日：1991-10-04
CPC分类号： F01D5/22 , Y02T50/673 , Y10S416/50 , Y10T29/49337
摘要： A vibration damper for rotor blades of a gas turbine engine has a shaft and a contact head connected thereto. The shaft is slidably inserted in a cylindrical recess incorporated in the rotor blade platform. During rotation of the rotor disk, the shaft of the damping member slides along the shaft axis, whereby the damping member is moved at least in the radial and circumferential directions by centrifugal forces. The contact head of the damping member of one rotor blade finally bears against the platform portion of an adjacent rotor blade, serving to damp vibratory motion of both blades.
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