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公开(公告)号：US06390774B1
公开(公告)日：2002-05-21
申请号：US09496715
申请日：2000-02-02
申请人： Doyle C. Lewis , Kevin Joseph Barb
发明人： Doyle C. Lewis , Kevin Joseph Barb
IPC分类号： F01D508
CPC分类号： F01D5/187 , B22C9/10 , B22C21/14 , F05D2240/81 , F05D2260/205 , F05D2260/2322
摘要： A turbine bucket includes an airfoil portion having leading and trailing edges; at least one radially extending cooling passage within the airfoil portion, the airfoil portion joined to a platform at a radially inner end of the airfoil portion; a dovetail mounting portion enclosing a cooling medium supply passage; and, a crossover passage in fluid communication with the cooling medium supply passage and with at least one radially extending cooling passage, the crossover passage having a portion extending along and substantially parallel to an underside surface of the platform.
摘要翻译： 涡轮机桶包括具有前缘和后缘的翼型部分; 在所述翼型部分内的至少一个径向延伸的冷却通道，所述翼型部分在所述翼型部分的径向内端处连接到平台; 封闭冷却介质供给通道的燕尾形安装部; 以及与所述冷却介质供应通道流体连通并且具有至少一个径向延伸的冷却通道的交叉通道，所述交叉通道具有沿所述平台的下表面延伸并且基本上平行于所述平台的下表面。
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公开(公告)号：US20130280048A1
公开(公告)日：2013-10-24
申请号：US13451126
申请日：2012-04-19
IPC分类号： F01D11/08
CPC分类号： F01D11/001
摘要： A seal for a turbine system includes a rotor, a bowl region and a stator assembly having a tip strip disposed proximate the rotor. Also included is a packing head disposed proximate the tip strip. Further included is a flex seal having a first end portion fixedly secured to at least one of the tip strip and the packing head, with a second end portion slidably engaged with at least one of the tip strip and the packing head.
摘要翻译： 用于涡轮机系统的密封件包括转子，碗区域和具有靠近转子设置的末端条的定子组件。 还包括设置在尖端条附近的包装头。 进一步包括柔性密封件，其具有固定地固定到末端条带和包装头部中的至少一个的第一端部部分，第二端部部分与尖端条带和包装头部中的至少一个可滑动地接合。
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公开(公告)号：US06854959B2
公开(公告)日：2005-02-15
申请号：US10249518
申请日：2003-04-16
申请人： Kevin Joseph Barb
发明人： Kevin Joseph Barb
CPC分类号： F01D5/16 , F01D5/147 , F05D2250/291 , F05D2300/43 , F05D2300/615 , Y10S416/50
摘要： A steam turbine rotor wheel includes a plurality of buckets secured about a circumferential periphery of the wheel, each bucket comprising a shank portion and an airfoil portion, the plurality of buckets including two groups of buckets having respective different predetermined resonant frequencies. A method of reducing vibration in a row of buckets on a steam turbine rotor wheel includes a) providing a first group of buckets with a first predetermined natural frequency range; b) providing a second group of buckets with a second predetermined natural frequency range different than the first predetermined natural frequency range; and c) assembling buckets of the first and second groups of buckets in alternating fashion on the rotor wheel.
摘要翻译： 蒸汽轮机转子轮包括围绕车轮的圆周周边固定的多个铲斗，每个铲斗包括柄部分和翼型部分，多个铲斗包括具有各自不同的预定共振频率的两组铲斗。 一种减少蒸汽轮机转子轮上的一排铲斗中的振动的方法包括：a）提供具有第一预定固有频率范围的第一组铲斗; b）提供具有与第一预定固有频率范围不同的第二预定固有频率范围的第二组桶; 和c）以交替的方式将第一组和第二组桶的桶组装在转子轮上。
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公开(公告)号：US06464461B2
公开(公告)日：2002-10-15
申请号：US09731982
申请日：2000-12-08
申请人： Ian David Wilson , Kevin Joseph Barb , Ming Cheng Li , Susan Marie Hyde , Thomas Charles Mashey , Ronald Richard Wesorick , Christopher Charles Glynn , Martin C. Hemsworth
发明人： Ian David Wilson , Kevin Joseph Barb , Ming Cheng Li , Susan Marie Hyde , Thomas Charles Mashey , Ronald Richard Wesorick , Christopher Charles Glynn , Martin C. Hemsworth
IPC分类号： F01D508
CPC分类号： F01D5/085 , F02C7/16 , F05D2260/2322 , Y02T50/676
摘要： The steam cooling circuit for a gas turbine includes a bore tube assembly supplying steam to circumferentially spaced radial tubes coupled to supply elbows for transitioning the radial steam flow in an axial direction along steam supply tubes adjacent the rim of the rotor. The supply tubes supply steam to circumferentially spaced manifold segments located on the aft side of the 1-2 spacer for supplying steam to the buckets of the first and second stages. Spent return steam from these buckets flows to a plurality of circumferentially spaced return manifold segments disposed on the forward face of the 1-2 spacer. Crossover tubes couple the steam supply from the steam supply manifold segments through the 1-2 spacer to the buckets of the first stage. Crossover tubes through the 1-2 spacer also return steam from the buckets of the second stage to the return manifold segments. Axially extending return tubes convey spent cooling steam from the return manifold segments to radial tubes via return elbows.
摘要翻译： 用于燃气涡轮机的蒸汽冷却回路包括孔管组件，其将周向间隔开的径向管供给蒸汽，所述径向管连接到供应弯头，以沿着与沿转子边缘的蒸汽供应管沿轴向方向转换径向蒸汽流。 供应管将位于1-2间隔物的后侧的周向隔开的歧管段供应蒸汽，以将蒸汽供应到第一和第二级的桶。 来自这些铲斗的废水返回蒸汽流向设置在1-2间隔物的前表面上的多个周向间隔开的返回歧管段。 交叉管将来自蒸汽供应歧管段的蒸汽供应通过1-2间隔件连接到第一级的桶。 通过1-2间隔物的交叉管还将蒸汽从第二级的桶返回到回流歧管段。 轴向延伸的回流管通过返回弯头将废冷却蒸汽从返回歧管段传送到径向管。
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5.发明授权Application of high strength titanium alloys in last stage turbine buckets having longer vane lengths 失效高强度钛合金在具有较长叶片长度的最后级涡轮叶片中的应用公开(公告)号：US07195455B2
公开(公告)日：2007-03-27
申请号：US10919435
申请日：2004-08-17
IPC分类号： F01D5/14
CPC分类号： C22F1/183 , C22C14/00 , F01D5/28 , F05D2220/3215 , F05D2300/133 , Y02T50/672
摘要： A new high-strength titanium-based alloy bucket specifically suited for use as the last stage buckets in steam turbine engines having vane lengths of about 40 inches or greater and the method for forming such bucket. Exemplary buckets according to the invention are formed from a titanium-based alloy containing up to about 6.25% aluminum; (b) about to 3.5% vanadium; (c) about 2.25% tin, (d) about 2.25% zirconium, (e) about 1.75% molybdenum, (f) about 2.25% chromium, (g) about 0.7% silicon; and (h) about 2.3% iron, with the balance being titanium. After forming, the bucket can be heat treated to provide stress relief and then machined in a conventional manner.
摘要翻译： 一种专门适用于具有约40英寸或更大的叶片长度的蒸汽涡轮发动机中的最后一级铲斗的新型高强度钛基合金桶及其形成方法。 根据本发明的示例性铲斗由含有至多约6.25％铝的钛基合金形成; （b）约3.5％的钒; （c）约2.25％的锡，（d）约2.25％的锆，（e）约1.75％的钼，（f）约2.25％的铬，（g）约0.7％的硅; 和（h）约2.3％的铁，余量为钛。 成形后，可以对桶进行热处理以提供应力释放，然后以常规方式加工。
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公开(公告)号：US07097428B2
公开(公告)日：2006-08-29
申请号：US10873145
申请日：2004-06-23
IPC分类号： F03B3/12
CPC分类号： F01D5/141 , F01D5/225 , F05D2260/96
摘要： A bucket for use on a steam turbine rotor wheel, the bucket comprising a shank portion and an airfoil portion, the airfoil portion having a radially outer tip with a tip cover adapted to be engaged, in use, by a similar tip cover on an adjacent bucket, wherein a radial step is formed in the tip cover and the airfoil portion along a leading edge of the airfoil portion.
摘要翻译： 一种用于蒸汽轮机转子轮的铲斗，所述铲斗包括柄部分和翼型部分，所述翼型部分具有径向外端部，所述翼片部分具有尖端盖，其适于在使用中通过相邻的类似的顶盖 铲斗，其中径向台阶沿着翼型部分的前缘形成在末端盖和翼型部分中。
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公开(公告)号：US06481972B2
公开(公告)日：2002-11-19
申请号：US09741892
申请日：2000-12-22
IPC分类号： F03D1102
CPC分类号： F01D5/18 , F01D5/16 , F05D2230/21 , Y10S416/50 , Y10T29/4932 , Y10T29/49764
摘要： A tuning rib is added preferably in the aft cavity of a cored turbine bucket to alter the bucket's natural frequencies. The tuning rib may be a solid rib or a segmented rib and is particularly suited for altering high order frequency modes such as 2T, 4F and 1-3S. As such, detrimental crossings of natural bucket frequencies and gas turbine stimuli can be avoided to thereby improve the reliability of a gas turbine without impacting other features of the bucket that are important to the performance of the gas turbine.
摘要翻译： 调谐肋优选地添加在核心涡轮机桶的后腔中以改变铲斗的固有频率。 调音肋可以是实心肋或分段肋，并且特别适用于改变高阶频率模式，例如2T，4F和1-3S。 因此，可以避免天然桶频率和燃气轮机刺激的有害交叉，从而提高燃气轮机的可靠性，而不会影响对燃气轮机的性能很重要的桶的其他特征。
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公开(公告)号：US06478540B2
公开(公告)日：2002-11-12
申请号：US09739445
申请日：2000-12-19
申请人： Nesim Abuaf , Kevin Joseph Barb , Sanjay Chopra , David Max Kercher , Iain Robertson Kellock , Dean Thomas Lenahan , Sankar Nellian , John Howard Starkweather , Douglas Arthur Lupe
发明人： Nesim Abuaf , Kevin Joseph Barb , Sanjay Chopra , David Max Kercher , Iain Robertson Kellock , Dean Thomas Lenahan , Sankar Nellian , John Howard Starkweather , Douglas Arthur Lupe
IPC分类号： F01D518
CPC分类号： F01D5/187 , F05D2240/81 , F05D2260/201 , F05D2260/2214
摘要： A turbine bucket includes an airfoil extending from a platform, having high and low pressure sides; a wheel mounting portion; a hollow shank portion located radially between the platform and the wheel mounting portion, the platform having an under surface. An impingement cooling plate is located in the hollow shank portion, spaced from the under surface, and the impingement plate is formed with a plurality of impingement cooling holes therein.
摘要翻译： 涡轮机桶包括从平台延伸的具有高低压侧的翼型件; 轮安装部; 位于所述平台和所述车轮安装部之间的中空柄部，所述平台具有下表面。 冲击冷却板位于空心柄部分中，与下表面间隔开，并且冲击板在其中形成有多个冲击冷却孔。
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公开(公告)号：US07270518B2
公开(公告)日：2007-09-18
申请号：US11132391
申请日：2005-05-19
IPC分类号： F01D5/22
CPC分类号： F01D5/147 , F01D5/225 , F05D2250/712 , Y02T50/672
摘要： Steam turbine bucket covers have forward and aft clearance surfaces on a pressure side edge of the cover, a contact surface between the clearance surfaces and an undercut fillet between the forward clearance surface and the contact surface. The adjoining bucket cover has forward and aft clearance surfaces, a contact surface between the clearance surfaces and an outside radius between the forward clearance surface and the contact surfaces along the suction side edge of the cover. The undercut fillet includes two different radii to minimize or eliminate fretting damage caused by high stresses in the interference fit between the contact surfaces of adjacent covers.
摘要翻译： 蒸汽涡轮机桶盖在盖的压力侧边缘上具有前后间隙表面，间隙表面之间的接触表面和前间隙表面和接触表面之间的底切圆角。 相邻的铲斗盖具有前后间隙表面，间隙表面之间的接触表面和沿着盖的吸力侧边缘的前间隙表面和接触表面之间的外半径。 底切圆角包括两个不同的半径，以最小化或消除相邻盖的接触表面之间的过盈配合引起的高应力引起的微动损坏。
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公开(公告)号：US07147437B2
公开(公告)日：2006-12-12
申请号：US10913407
申请日：2004-08-09
IPC分类号： F01D5/26
CPC分类号： F01D5/147 , F01D5/16 , F05D2300/43 , Y02T50/672 , Y02T50/673 , Y10S416/50
摘要： A steam turbine blade includes a shank portion and an airfoil portion. The airfoil portion is formed with at least one pocket filled with a polymer filler material chosen as a function of natural frequency impact on the turbine blade or as a function of the damping characteristics of the filler materials. A steam turbine rotor wheel includes a plurality of blades secured about a circumferential periphery of the wheel, each blade having one or more pockets in the airfoil portion, the plurality of blades divided into two groups of blades. The pockets of one group of blades are filled with one or more polymer filler materials, and the pockets of the other group of blades filled with one or more polymer filler materials, wherein the polymer filler materials in the one group of blades creates different natural frequencies or damping characteristics in the blades of the one group than the polymer filler materials in the blades of the other group. The two groups of blades are assembled on the rotor wheel in accordance with a predetermined pattern.
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