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公开(公告)号:US5284406A
公开(公告)日:1994-02-08
申请号:US825350
申请日:1992-03-06
Applicant: Peter W. Mueller , Dewey D. Dunkman , Joseph T. Stevenson , Elbert Stonom
Inventor: Peter W. Mueller , Dewey D. Dunkman , Joseph T. Stevenson , Elbert Stonom
CPC classification number: B23C1/20 , B23B47/28 , B23C3/00 , B23C3/12 , B23P6/002 , B23B2215/76 , B23C2220/40 , B23C2260/08 , Y10T29/49321 , Y10T29/49336 , Y10T408/97 , Y10T409/302576 , Y10T409/303696 , Y10T409/303808 , Y10T409/306384
Abstract: The present invention provides a method and apparatus including a rotor mountable fixture for guiding a cutting tool powered by a hand held air motor to machine a gas turbine engine rotor without removing the rotor from its mountings in the engine. In one particular embodiment the fixture includes a root having the same contour as a blade root slot of a rotor, a base having a platform attached to the root, and a machining guide in the form of a bushing restrained in a guide slot operable to receive and guide a hand held air motor powered cutting tool for machining the rotor. The present invention provides an accurate means to machine a gas turbine engine rotor without removing the rotor from its mounting. In one particular embodiment a method for machining the rotor in the field is provided using a hand held air motor to power a machining tool to cut a blade damper pocket in the dovetail slot of a pressure compressor rotor.
Abstract translation: 本发明提供了一种方法和装置,其包括用于引导由手持式气动马达驱动的切割工具的转子安装固定装置,用于加载燃气涡轮发动机转子,而不从其在发动机中的安装件移除转子。 在一个具体实施例中,固定装置包括具有与转子的叶片根槽相同轮廓的根部,具有附接到根部的平台的基部,以及限定在导槽中的衬套形式的加工引导件,其可操作以接收 并引导用于加工转子的手持式气动马达动力切割工具。 本发明提供了一种用于在不从其安装中移除转子的情况下对燃气涡轮发动机转子进行加工的精确装置。 在一个具体实施例中,使用手持式气动马达来提供在现场加工转子的方法,为加工工具提供动力,以切割压缩机转子的燕尾槽中的叶片阻尼器袋。
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公开(公告)号:US5226784A
公开(公告)日:1993-07-13
申请号:US951929
申请日:1992-09-25
Applicant: Peter W. Mueller , Joseph T. Stevenson , Josef Panovsky , Christopher C. Glynn , Sang Y. Park , Daniel E. Wines
Inventor: Peter W. Mueller , Joseph T. Stevenson , Josef Panovsky , Christopher C. Glynn , Sang Y. Park , Daniel E. Wines
CPC classification number: F01D5/22 , F01D11/006 , Y10S416/50
Abstract: The present invention provides a phase independent damper and damper assembly capable of damping rotor blade vibrations in the axial, circumferential, and radial directions. One embodiment, particularly useful in an aircraft gas turbine engine compressor rotor, provides a damper and damper assembly including a generally axially extending blade damper operable to fictionally engage a generally axially extending circumferentially facing surface of a disk and axially extending angled surface under the platform of the blade. The invention provides an additional advantage of allowing simple and easy modification of existing engines to incorporate the damper of the present invention.
Abstract translation: 本发明提供了一种相位独立的阻尼器和阻尼器组件,其能够在轴向,周向和径向上阻尼转子叶片的振动。 在飞行器燃气涡轮发动机压缩机转子中特别有用的一个实施例提供了一种阻尼器和阻尼器组件,其包括大致轴向延伸的叶片阻尼器,其可操作地虚拟地接合盘的大致轴向延伸的面向周向的表面并且在 刀片。 本发明提供了允许对现有发动机的简单和容易的修改以结合本发明的阻尼器的另外的优点。
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公开(公告)号:US5947688A
公开(公告)日:1999-09-07
申请号:US995975
申请日:1997-12-22
Applicant: Jan C. Schilling , Jay L. Cornell , Joseph T. Stevenson
Inventor: Jan C. Schilling , Jay L. Cornell , Joseph T. Stevenson
CPC classification number: F01D5/147 , F01D5/16 , F05D2240/80 , Y02T50/672 , Y02T50/673
Abstract: A fan blade includes a metal airfoil having first and second opposite sides extending radially between a root and tip, and axially between a leading edge and a trailing edge. The airfoil further includes a plurality of pockets disposed in the first side and separated by corresponding ribs. A filler is bonded in the pocket, and is coextensive with the airfoil first side. Radial and diagonal ribs respectively intersect solely each other for selectively increasing torsional and bending stiffness to increase frequency margin between adjacent torsional and bending resonant modes of vibration.
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公开(公告)号:US6033186A
公开(公告)日:2000-03-07
申请号:US293383
申请日:1999-04-16
Applicant: Jan C. Schilling , Jay L. Cornell , Joseph T. Stevenson
Inventor: Jan C. Schilling , Jay L. Cornell , Joseph T. Stevenson
CPC classification number: F01D5/16 , B63H1/26 , B64C11/00 , F01D5/34 , F05D2250/25 , F05D2300/431 , Y02T50/672 , Y02T50/673
Abstract: A fan blade includes a metal airfoil having first and second opposite sides extending radially between a root and tip, and axially between a leading edge and a trailing edge. The airfoil further includes a plurality of pockets disposed in the first side and separated by corresponding ribs. A filler is bonded in the pocket, and is coextensive with the airfoil first side. Radial and diagonal ribs respectively intersect solely each other for selectively increasing torsional and bending stiffness to increase frequency margin between adjacent torsional and bending resonant modes of vibration.
Abstract translation: 风扇叶片包括具有在根部和尖端之间径向延伸的第一和第二相对侧以及在前缘和后缘之间轴向延伸的金属翼型件。 翼型件还包括设置在第一侧中并由相应的肋分开的多个袋。 填料结合在口袋中,与翼型件第一面共同延伸。 径向和对角肋分别彼此相交,以选择性地增加扭转和弯曲刚度,以增加相邻扭转和弯曲共振振动模式之间的频率裕度。
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公开(公告)号:US5101557A
公开(公告)日:1992-04-07
申请号:US613340
申请日:1990-11-14
Applicant: Peter W. Mueller , Dewey D. Dunkman , Joseph T. Stevenson , Elbert Stonom
Inventor: Peter W. Mueller , Dewey D. Dunkman , Joseph T. Stevenson , Elbert Stonom
CPC classification number: B23C1/20 , B23B47/28 , B23C3/00 , B23C3/12 , B23P6/002 , B23B2215/76 , B23C2220/40 , B23C2260/08 , Y10T29/49321 , Y10T29/49336 , Y10T408/97 , Y10T409/302576 , Y10T409/303696 , Y10T409/303808 , Y10T409/306384
Abstract: A method of using a rotor mountable fixture for guiding a cutting tool powered by a hand held air motor to machine a gas turbine engine rotor without removing the rotor from its mountings in the engine is provided. In one particular embodiment the fixture includes a root having the same contour as a blade root slot of a rotor, a base having a platform attached to the root, and a machining guide in the form of a bushing restrained in a guide slot operable to receive a guide a hand held air motor powered cutting tool for machining the rotor. The present invention provides an accurate means to machine a gas turbine engine rotor without removing the rotor from its mounting. In one particular embodiment a method for machining the rotor in the field is provided using a hand held air motor to power a machining tool to cut a blade damper pocket in the dovetail slot of a pressure compressor rotor.
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公开(公告)号:US6039542A
公开(公告)日:2000-03-21
申请号:US997832
申请日:1997-12-24
Applicant: Jan C. Schilling , Jay L. Cornell , Joseph T. Stevenson
Inventor: Jan C. Schilling , Jay L. Cornell , Joseph T. Stevenson
CPC classification number: F01D5/16 , F05D2220/36 , Y02T50/672 , Y02T50/673 , Y10S416/50
Abstract: A fan blade includes a metal airfoil having first and second opposite sides extending radially between a root and a tip, and axially between a leading edge and a trailing edge. The airfoil further includes a pocket disposed in the first side having an elastomeric filler bonded therein. A panel is bonded to the filler along the pocket for allowing differential movement therebetween for damping vibratory response of the airfoil.
Abstract translation: 风扇叶片包括具有在根部和尖端之间径向延伸的第一和第二相对侧以及在前缘和后缘之间的轴向的金属翼型件。 机翼还包括设置在第一侧中的口袋,其中粘合有弹性体填料。 面板沿着口袋粘合到填料上,以允许它们之间的差动运动来阻止翼型的振动响应。
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公开(公告)号:US5913661A
公开(公告)日:1999-06-22
申请号:US995979
申请日:1997-12-22
Applicant: Josef Panovsky , Joseph T. Stevenson
Inventor: Josef Panovsky , Joseph T. Stevenson
CPC classification number: F01D5/147 , F01D5/16 , F05D2240/80 , Y02T50/672 , Y02T50/673 , Y10S416/50
Abstract: A fan blade includes a metal airfoil having first and second opposite sides extending longitudinally between a root and a tip, and laterally between a leading edge and a trailing edge. The airfoil further includes a plurality of fine striations spaced laterally apart between the leading and trailing edges in the airfoil first side, and extending longitudinally between the root and the tip. A viscoelastic filler is bonded in the striations for damping torsional vibrations of the airfoil.
Abstract translation: 风扇叶片包括具有在根部和尖端之间纵向延伸的第一和第二相对侧以及在前缘和后缘之间横向延伸的金属翼型件。 翼型件还包括在翼型件第一侧的前缘和后缘之间横向分开的多个细条纹,并且在根部和尖端之间纵向延伸。 在用于阻尼翼型的扭转振动的条纹中粘合粘弹性填料。
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