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公开(公告)号：US5167487A
公开(公告)日：1992-12-01
申请号：US666959
申请日：1991-03-11
申请人： Peter J. Rock
发明人： Peter J. Rock
CPC分类号： F01D11/18
摘要： A shroud support includes an annular casing and an annular hanger spaced radially inwardly therefrom. The hanger includes a circumferentially extending flow duct therein and a base for radially supporting a shroud positionable radially over a plurality of circumferentially spaced turbine blades. The hanger is cooled by channeling a cooling fluid circumferentially inside the hanger flow duct for providing more uniform circumferential blade tip clearance and for better matching the thermal movement between the shroud and blade tips.
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42.发明授权Turbo-machine with device for automatically controlling the rate of flow of turbine ventilation air 失效涡轮机具有用于自动控制涡轮机通风空气流量的装置
公开(公告)号：US4805398A
公开(公告)日：1989-02-21
申请号：US103417
申请日：1987-10-01
CPC分类号： F01D5/082 , F01D11/18 , F01P7/02 , F02C7/18 , Y02T50/672 , Y02T50/676
摘要： A device for automatically controlling the rate of flow of turbine ventilation air in a turbo-machine comprises two superimposed ceramic rings which are split and are each fixed at a single point to a metal support so that differential expansion of the support and the two rings in response to the operating conditions of the turbo-machine causes the registry of peripherally disposed slots in the ceramic rings to vary and thereby control the rate of ventilation air flow therethrough in accordance with the turbo-machine operating conditions.
摘要翻译： 用于自动控制涡轮机中的涡轮机通风空气的流量的装置包括两个叠置的陶瓷环，它们分开并且分别固定在金属支撑件上的一个点上，使得支撑件和两个环的不同膨胀 对涡轮机的操作条件的响应导致陶瓷环中外围设置的槽的注册表变化，从而根据涡轮机操作条件控制通过其中的通风空气的速率。
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43.发明授权Method and apparatus for optimizing the vane clearance in a multi-stage axial flow compressor of a gas turbine 失效一种用于优化燃气轮机的多级轴流压缩机中的叶片间隙的方法和装置
公开(公告)号：US4795307A
公开(公告)日：1989-01-03
申请号：US020028
申请日：1987-02-27
申请人： Josef Liebl
发明人： Josef Liebl
CPC分类号： F01D11/18 , F01D11/001 , F01D5/085 , Y02T50/671 , Y02T50/676
摘要： A method and apparatus for optimizing the radial clearance of rotor and stator vanes with their opposed structure for axial flow compressors of gas turbine power plants in which rotor disks are vented and thermally controlled by compressed air taken from the main flow path in the compressor via openings in the inner surface of the main flow path at one or more of the compressor stages. The removed air is supplied to annular spaces formed between rotor and/or seal support disks.
摘要翻译： 一种用于优化转子和定子叶片的径向间隙的方法和装置，其具有用于燃气轮机发电厂的轴流式压缩机的相对结构，其中转子盘被排出并通过压缩机中的主流路从开口 在一个或多个压缩机级的主流路的内表面。 去除的空气被供应到形成在转子和/或密封支撑盘之间的环形空间。
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公开(公告)号：US4363599A
公开(公告)日：1982-12-14
申请号：US89790
申请日：1979-10-31
摘要： A system is provided inside a turbomachine for controlling operational clearance between a turbine rotor and a surrounding turbine shroud. The system comprises a plurality of control rings, integrated into the turbine casing, that are thermally expanded and contracted to control radial positioning of the turbine shroud. Compressor air is directed through internal passages in the rings to cause the expansion and contraction. The system utilizes the pressure and temperature of compressor air, in combination with size, location, and structure of the control rings to match thermal growth of the control rings and turbine shroud to thermal growth of the turbine rotors, thereby controlling clearance.
摘要翻译： 在涡轮机内设置有用于控制涡轮机转子和周围涡轮机罩之间的操作间隙的系统。 该系统包括集成到涡轮壳体中的多个控制环，其被热膨胀和收缩以控制涡轮机护罩的径向定位。 压缩机空气通过环内的内部通道引导膨胀和收缩。 该系统利用压缩机空气的压力和温度，结合控制环的尺寸，位置和结构，使控制环和涡轮机罩的热生长与涡轮转子的热增长相匹配，从而控制间隙。
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公开(公告)号：US3982850A
公开(公告)日：1976-09-28
申请号：US587168
申请日：1975-06-16
申请人： John Jenkinson
发明人： John Jenkinson
CPC分类号： F01D11/025 , F01D11/18 , Y02T50/671
摘要： Thermal matching of compounds in a gas turbine engine is achieved by providing the component with the highest rate of thermal expansion with an insulating sheet which is dimpled to contact the surface of the component at discrete spots leaving air spaces in between. The sheet is attached to the component by spot welding at a pre-determined number of areas to provide the necessary heat conducting paths between the insulation and the component to enable the expansion of the component to be matched with that of another component. Seal clearances can be reduced by matching the expansions of seal carrying components in this way.
摘要翻译： 燃气涡轮发动机中的化合物的热匹配是通过提供具有最高热膨胀率的部件来实现的，该绝缘片被凹陷以在离散的位置处接触组件的表面，从而在其间留有空气间隙。 该片材通过在预定数量的区域上的点焊附接到部件上，以在绝缘体和部件之间提供必要的导热路径，以使部件膨胀以与另一部件匹配。 通过以这种方式匹配密封件承载部件的膨胀，可以减少密封间隙。
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公开(公告)号：US3966354A
公开(公告)日：1976-06-29
申请号：US534551
申请日：1974-12-19
申请人： William R. Patterson
发明人： William R. Patterson
摘要： A shroud closely surronding a high thermal inertia rotor is provided with a support structure having low thermal inertia characteristics. The support structure is selectively exposed to different temperature mediums during transient operation by way of a thermal actuated valve so as to cause a rapid growth thereof during periods of engine acceleration and a slow shrinkage thereof during periods of deceleration of the engine. In this manner the clearance relationship between the shroud and enclosed rotor is maintained at a minimum during periods of steady-state and transitional operation to thereby increase the efficiency of the combination.
摘要翻译： 紧密地缠绕高热惯性转子的护罩设置有具有低热惯性特性的支撑结构。 在通过热致动阀的瞬态操作期间，支撑结构选择性地暴露于不同的温度介质，以便在发动机加速期间及其在发动机减速期间的缓慢收缩期间使其快速增长。 以这种方式，在稳态和过渡操作期间，护罩和封闭转子之间的间隙关系保持最小，从而提高组合的效率。
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47.发明授权Composite elongate member having a predetermined effective coefficient of linear expansion 失效具有预测的线性膨胀有效系数的复合ELENATE成员
公开(公告)号：US3854843A
公开(公告)日：1974-12-17
申请号：US30979072
申请日：1972-11-27
申请人： PENNY R
发明人： PENNY R
CPC分类号： F01D11/18
摘要： A stator shroud ring assembly in which a turbine of a gas turbine engine is positioned with an annular gap of predetermined radial distance between the stator shroud ring and the periphery of the turbine rotor, the stator shroud ring assembly including a stator shroud ring constructed from at least one arcuate portion made of one material and at least one arcuate portion made of another material, the co-efficients of linear expansion of the materials employed and the total arcuate length employed of each material being such that the circumferential length of whole shroud ring will change with temperature by an amount corresponding to a predetermined effective co-efficient of linear expansion substantially equal to that of the rotor material.
摘要翻译： 一种定子护罩环组件，其中燃气涡轮发动机的涡轮机定位在定子护罩环和涡轮机转子的周边之间具有预定径向距离的环形间隙，定子护罩环组件包括从其构成的定子护罩环 由一种材料制成的至少一个弓形部分和由另一材料制成的至少一个弓形部分，所使用的材料的线性膨胀系数和每种材料使用的总弓形长度使得整个护罩环的圆周长度将使得整个护罩环的圆周长度 随着温度的变化量相当于基本上等于转子材料的预定有效线性膨胀有效系数。
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公开(公告)号：US3742705A
公开(公告)日：1973-07-03
申请号：US3742705D
申请日：1970-12-28
申请人： UNITED AIRCRAFT CORP
发明人： SIFFORD P
CPC分类号： F01D11/18 , F01D25/12 , Y02T50/671 , Y02T50/675
摘要： This invention shows a shroud construction located around the tips of the blades on a rotating body in an engine to provide a minimum clearance between the blade tips and the shroud during all conditions of operation-acceleration, steady state and deceleration. This shroud construction is connected to the end of two annular flanges which extend inwardly from an inner engine case towards the rotating member. The shroud member faces the blade tips and is arranged to have a flow of cooling fluid pass therethrough. Cooling vanes extend from the inner engine case into a duct through which fan air passes. Compressor air passes through the shroud construction.
摘要翻译： 本发明示出了在所有操作加速度，稳态和减速条件期间，在发动机的旋转体上的叶片的尖端周围设置护罩结构，以在叶片尖端和护罩之间提供最小间隙。 该护罩结构连接到从内部发动机壳体朝向旋转构件向内延伸的两个环形凸缘的端部。 护罩构件面向叶片尖端并且布置成具有冷却流体流过其中的流动。 冷却叶片从内部发动机壳体延伸到风扇通过的管道中。 压缩机空气通过护罩结构。
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公开(公告)号：US3736751A
公开(公告)日：1973-06-05
申请号：US3736751D
申请日：1971-05-26
申请人： SECR DEFENCE
CPC分类号： F01D11/18 , F16J15/44 , Y10S277/931
摘要： In order to maintain a substantially constant clearance between static and rotating sealing elements of a gas turbine engine, one of the elements is connected to a thermally expansible control tube which is fed with hot gas from the engine in direct proportion to the size of the sealing clearance e.g. by using fluid which has leaked through the seal. The control tube is additionally fed with cold air and vented to a low pressure via a restrictor. When the seal clearance is set to the desired value the pressures of hot and cold fluid are such that there is no flow along the control tube. Enlargement of the clearance gives an increase in pressure to the hot fluid which flows along the tube heating the tube and the resulting expansion reduces the sealing clearance. Reduction in sealing clearance reduces the pressure of the hot fluid so that the colder fluid flows along the tube and the resulting contraction enlarges the sealing clearance.
摘要翻译： 为了在燃气涡轮发动机的静态和旋转的密封元件之间保持基本恒定的间隙，元件之一连接到热膨胀的控制管，热管可以与来自发动机的热气直接比例地与密封件 清除例如 通过使用已经通过密封件泄漏的流体。 控制管另外供给冷空气，并通过限流器排放到低压。
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