公开(公告)号：US08939709B2

公开(公告)日：2015-01-27

申请号：US13184628

申请日：2011-07-18

申请人： Biju Nanukuttan ,  Rakesh Adoor ,  Hariharan Sundaram ,  James Adaickalasamy ,  Prasad Punna

发明人： Biju Nanukuttan ,  Rakesh Adoor ,  Hariharan Sundaram ,  James Adaickalasamy ,  Prasad Punna

IPC分类号： F01D11/18 ,  F01D11/22

CPC分类号： F01D11/22 ,  F05B2280/5006 ,  F05D2300/505 ,  Y10S277/931 ,  Y10S277/932

摘要： A system for operating a turbine includes a rotating component and a non-rotating component separated from the rotating component by a clearance. A first actuator is connected to the non-rotating component, and the first actuator comprises a shape-memory alloy. A method for operating a turbine includes sensing a parameter reflective of a clearance between a non-rotating component and a rotating component and generating a parameter signal reflective of the clearance. The method further includes generating a control signal to at least one actuator based on the parameter signal and moving at least a portion of the non-rotating component relative to the rotating component to change the clearance.

摘要翻译： 用于操作涡轮机的系统包括旋转部件和通过间隙与旋转部件分离的非旋转部件。 第一致动器连接到非旋转部件，并且第一致动器包括形状记忆合金。 用于操作涡轮机的方法包括感测反映非旋转部件和旋转部件之间的间隙的参数并产生反映间隙的参数信号。 该方法还包括基于参数信号向至少一个致动器生成控制信号，并且相对于旋转部件移动非旋转部件的至少一部分以改变间隙。

公开(公告)号：US20030122311A1

公开(公告)日：2003-07-03

申请号：US10028927

申请日：2001-12-28

发明人： Mahmut Faruk Aksit ,  Ahmad Safi ,  Abdul-Azeez Mohammed-Fakir

IPC分类号： F16J015/02

CPC分类号： F16J15/0887 ,  F01D11/005 ,  F02C7/28 ,  Y10S277/931

摘要： In a gas turbine including a nozzle retaining ring having a first annular axially facing sealing surface and a shroud segment having an axial registering second surface. To minimize or prevent leakage flow between the retaining ring and shroud segments, a generally U-shaped seal having reversely folded U-shaped marginal portions is received in a cavity formed in the second surface. At operating conditions, the marginal portions seal against the base of the cavity and the first surface of the retaining ring to prevent leakage flow past the retaining ring/shroud segment interface. To install the seal, the seal body is first compressed and maintained in a compressed state by applying one or more wraps about the seal body and an epoxy is used to secure the seal when compressed in the cavity. At operating temperatures, the retention means releases the seal to engage marginal portions against opposite sealing surfaces of the shroud segments and retaining ring.

摘要翻译： 在包括具有第一环形轴向面对的密封表面的喷嘴保持环和具有轴向对准的第二表面的护罩段的燃气轮机中。 为了最小化或防止保持环和护罩段之间的泄漏流动，具有反向折叠的U形边缘部分的大致U形密封件容纳在形成在第二表面中的空腔中。 在操作条件下，边缘部分密封住空腔的基部和保持环的第一表面，以防止泄漏流过保持环/护罩段接口。 为了安装密封件，密封体首先通过在密封体周围施加一个或多个包装而被压缩并保持在压缩状态，并且当压缩在空腔中时使用环氧树脂来固定密封件。 在操作温度下，保持装置释放密封件以将边缘部分接合到护罩段和保持环的相对的密封表面上。

公开(公告)号：US06322085B1

公开(公告)日：2001-11-27

申请号：US09602226

申请日：2000-06-23

申请人： Jon W. Martin ,  Xinhua He

发明人： Jon W. Martin ,  Xinhua He

IPC分类号： F16J1552

CPC分类号： F16J3/045 ,  B29C49/0005 ,  B29C49/0021 ,  B29C49/22 ,  B29C2791/006 ,  B29L2031/703 ,  F16J3/042 ,  Y10S277/922 ,  Y10S277/923 ,  Y10S277/931

摘要： An apparatus (10) includes a bearing (24) linking first and second vehicle parts (12, 14) for movement relative to each other, and a boot seal (30) protecting the bearing (24). The boot seal (30) is a tube of heat shrinkable thermoplastic material. The tube (30) has a first end portion (34) shrunken against the first vehicle part (12), a second end portion (42) shrunken against the second vehicle part (14), and a flexible intermediate portion (44) which is deflectable between the opposite end portions (34, 40) upon movement of the vehicle parts (12, 14) relative to each other.

摘要翻译： 一种装置（10）包括一个使第一和第二车辆部件（12,14）相互相对移动的轴承（24）和保护轴承（24）的保护罩（30）。 靴子密封件（30）是可热收缩的热塑性材料管。 管（30）具有收缩在第一车辆部分（12）上的第一端部（34），与第二车辆部分（14）收缩的第二端部（42）和柔性中间部分（44） 在车辆部件（12,14）相对于彼此移动时在相对端部（34,40）之间可偏转。

公开(公告)号：US20010021285A1

公开(公告)日：2001-09-13

申请号：US09800510

申请日：2001-03-08

发明人： Shigenobu Nakamura

IPC分类号： F16C033/76

CPC分类号： H02K7/083 ,  F16C19/06 ,  F16C33/7853 ,  Y10S277/931 ,  Y10S384/905

摘要： A bearing device includes a pair of bearings. One of the bearings is exposed to a higher temperature condition than the other. Each of the bearings has an outer ring, an inner ring, a plurality of rolling members disposed in a space between the outer ring and the inner ring and a pair of sealing members fixed to the outer ring. Each of the sealing members has an elastic lip in contact with an outer surface of the inner ring, and the lip of the bearing exposed to a higher temperature condition is made of a material that is more heat-resistant than the lip of the other sealing member.

摘要翻译： 一种轴承装置包括一对轴承。 其中一个轴承暴露在比另一个更高的温度条件下。 每个轴承具有外环，内圈，设置在外环和内圈之间的空间中的多个滚动构件和固定到外圈的一对密封构件。 每个密封构件具有与内圈的外表面接触的弹性唇缘，并且暴露于较高温度条件的轴承的唇缘由比另一个密封件的唇缘更耐热的材料制成 会员。

公开(公告)号：US06189895B1

公开(公告)日：2001-02-20

申请号：US09263492

申请日：1999-03-08

申请人： Yoshio Yamada

发明人： Yoshio Yamada

IPC分类号： F02F1100

CPC分类号： F16J15/024 ,  F02F11/00 ,  F16J15/0825 ,  F16J2015/085 ,  F16J2015/0868 ,  Y10S277/931

摘要： A metal gasket is used for an internal combustion engine, preferably as a manifold gasket. The gasket is formed of a plurality of metal gasket sections, and at least one metal connecting section situated between two gasket sections adjacent to each other to connect the same. Each gasket section has a sealing hole to be sealed and a sealing device situated around the sealing hole. At least one through hole is formed in the connecting section. The through hole allows the connecting section to easily deform to absorb deformation of the gasket due to expansion and contraction of the engine. The gasket with the deformable connecting section can be easily and accurately formed.

摘要翻译： 用于内燃机的金属垫圈，优选用作歧管垫片。 垫圈由多个金属垫片部分形成，并且至少一个金属连接部分位于彼此相邻的两个垫圈部分之间，以便连接它们。 每个垫圈部分具有要密封的密封孔和位于密封孔周围的密封装置。 在连接部分中形成至少一个通孔。 通孔允许连接部分容易变形以吸收由于发动机的膨胀和收缩引起的垫片的变形。 具有可变形连接部的垫圈可以容易且精确地形成。

公开(公告)号：US6098753A

公开(公告)日：2000-08-08

申请号：US90955

申请日：1998-06-05

申请人： Sylvain Lamarre ,  Sylvain Brouillet

发明人： Sylvain Lamarre ,  Sylvain Brouillet

IPC分类号： F01D25/18 ,  F16J15/16 ,  F16N7/36 ,  F01M1/00

CPC分类号： F01D25/183 ,  F01D25/18 ,  F16N7/363 ,  Y10S277/931 ,  Y10S277/938

摘要： A system for delivering a pressurized lubricant fluid from a stationary source to an interior of a drive shaft of a gas turbine engine which rotates at high speed and operates at high temperatures, includes a pair of axially spaced-apart seals that surround the shaft. The pressurized lubricant fluid is delivered to a radial passage defined between the seals. To ensure reliable operation under the high speed and high temperature conditions, the seals are constructed so that a film of the lubricant fluid is formed between the rotating shaft and the seals. The seals float on the film and wear is reduced. In order to minimize variations in the space between the seals and the shaft caused by changes in operating temperatures, each seal is surrounded by a control ring of material having a coefficient of expansion similar to the material of the shaft. The advantage is reliable delivery of lubricant to a shaft rotating at high speed in a high temperature environment.

摘要翻译： 用于将加压的润滑剂流体从固定源输送到燃料涡轮发动机的驱动轴的内部的系统，所述驱动轴以高速旋转并在高温下操作，包括围绕轴的一对轴向间隔开的密封件。 加压润滑剂流体被输送到在密封件之间限定的径向通道。 为了确保在高速和高温条件下的可靠运行，密封件构造成在旋转轴和密封件之间形成润滑剂流体膜。 密封件浮在胶片上，磨损减少。 为了最小化由操作温度变化引起的密封件和轴之间的空间的变化，每个密封件被具有类似于轴的材料的膨胀系数的材料控制环包围。 优点是可靠地将润滑剂输送到在高温环境中高速旋转的轴上。

公开(公告)号：US5294133A

公开(公告)日：1994-03-15

申请号：US757400

申请日：1991-09-10

申请人： Piyush K. Dutta

发明人： Piyush K. Dutta

IPC分类号： F16J15/06 ,  F16J15/16 ,  F16J15/32 ,  F16J15/46

CPC分类号： F16J15/068 ,  F16J15/164 ,  F16J15/32 ,  Y10S277/91 ,  Y10S277/931

摘要： An O-ring seal for sealing two concentric members is disclosed. A hollow ring made from an elastomeric material is provided with a central liquid core. Temperature changes which normally result in a contraction in the elastomer material are compensated by the expansion of the liquid core. The O-ring maintains a sealed condition between the two members over a wider temperature range.

摘要翻译： 公开了用于密封两个同心构件的O形圈密封件。 由弹性体材料制成的空心环设置有中心液体芯。 通常导致弹性体材料收缩的温度变化通过液芯的膨胀来补偿。 O形圈在较宽的温度范围内保持两个构件之间的密封状态。

公开(公告)号：US5186277A

公开(公告)日：1993-02-16

申请号：US847559

申请日：1992-03-06

申请人： Owen R. Snuttjer ,  Michael J. Rasinski

发明人： Owen R. Snuttjer ,  Michael J. Rasinski

IPC分类号： F16J15/40 ,  F16N29/00 ,  F16N39/02 ,  G05D23/13

CPC分类号： F16N29/00 ,  F16J15/406 ,  F16N39/02 ,  G05D23/1393 ,  Y10S277/93 ,  Y10S277/931

摘要： A system for providing seal oils to a gland seal that surrounds the shaft of a generator with the temperature differences between the oils minimized, as well maintained at a temperature which is greater than that for a bearing lubrication oil supply system. The temperature of the air-side seal oil is used as a reference and then the difference between the air- and hydrogen-side seal oil temperatures is used to control the hydrogen-side seal oil temperature. The air-side temperature is controlled by a separate controller using the bearing oil temperature as a reference. The system advantageously prevents thermal differential expansion from occurring in the generator shaft and gland seal, and eliminates the need for operator attention for seal oil temperature control.

摘要翻译： 一种用于将密封油提供给密封件的系统，该密封件围绕发动机的轴，其中油之间的温度差最小化，并且保持在比轴承润滑油供应系统的温度更大的温度。 使用空气侧密封油的温度作为参考，然后使用空气和氢侧密封油温度之间的差异来控制氢侧密封油温度。 空气侧温度由使用轴承油温度的单独控制器控制。 该系统有利地防止在发电机轴和密封套密封件中发生热差膨胀，并且不需要操作者注意密封油温度控制。

公开(公告)号：US5054793A

公开(公告)日：1991-10-08

申请号：US255630

申请日：1988-10-11

申请人： Frederick M. Hauenstein ,  George C. Hedge

发明人： Frederick M. Hauenstein ,  George C. Hedge

IPC分类号： F01N13/18 ,  F16J15/12

CPC分类号： F01N13/1827 ,  F16J15/127 ,  Y10S277/931

摘要： A gasket (10) seals an interface between a pair of parts (12, 14) mounted to each other in torqued engagement and having facing surfaces (20, 22) thermally expanding towards each other upon heating, and contracting away from each other upon cooling. The gasket includes a resilient member (11) between the engaging the facing surfaces in sealing relation, and a plurality of rigid spacers (36, 38, 40, 42, 44, 46) permitting torqued engagement of the parts without squeezing out the resilient member from between the facing surfaces, and preventing compression of the resilient member beyond its permanent deformation elastic limit upon thermal expansion of the facing surfaces towards each other upon heating, including central portions (56, 58) of the facing surfaces thermally warping between spacers. Upon cooling, the facing surfaces contract away from each other, and the resilient member recovers and expands to maintain the seal against the facing surfaces.

摘要翻译： 垫圈（10）密封在一对扭转接合件彼此安装的一对部件（12,14）之间的界面，并且具有在加热时彼此相对热膨胀的相对表面（20,22），并且在冷却时彼此收缩 。 垫圈包括在密封关系中与相对表面接合的弹性构件（11）和多个刚性间隔件（36,38,40,42,44,46），其允许部件扭转接合而不挤出弹性构件 并且包括相对表面之间的相对表面的热膨胀，使得弹性构件超过其永久变形弹性极限时的压缩，包括面对表面在间隔件之间热弯曲的中心部分（56,58）。 冷却时，相对的表面彼此收缩，并且弹性部件恢复并膨胀以将密封保持在相对的表面上。

公开(公告)号：US5022662A

公开(公告)日：1991-06-11

申请号：US561987

申请日：1990-08-01

申请人： Hisashi Yasui

发明人： Hisashi Yasui

IPC分类号： F02F11/00 ,  F01P3/02 ,  F01P7/14 ,  F01P7/16 ,  F16J15/06 ,  F16K31/70

CPC分类号： F01P3/02 ,  F16J15/064 ,  F01P2007/143 ,  F01P2070/02 ,  Y10S277/931

摘要： A gasket of the invention is installed in an internal combustion engine with at least one fluid hole. The gasket comprises a main body adapted to be installed in the engine and having at least one first hole communicating with the fluid hole of the engine, and a fluid hole regulation device installed in the first hole of the main body. The fluid hole regulation device includes a second hole, and at least one plate made of a shape memory alloy. The plate moves to enlarge the size of the second hole when the water temperature exceeds a predetermined value, and to reduce the size of the second hole when the water temperature drops under a predetermined value.

摘要翻译： 本发明的垫圈安装在具有至少一个流体孔的内燃机中。 垫片包括适于安装在发动机中并且具有与发动机的流体孔连通的至少一个第一孔的主体和安装在主体的第一孔中的流体孔调节装置。 流体孔调节装置包括第二孔和由形状记忆合金制成的至少一个板。 当水温超过预定值时，板移动以扩大第二孔的尺寸，并且当水温下降到预定值时减小第二孔的尺寸。