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1.发明授权
公开(公告)号：US4697987A
公开(公告)日：1987-10-06
申请号：US832600
申请日：1986-02-25
CPC分类号： F04D29/624 , F04D29/266
摘要： An improved rotary machine such as centrifugal type compressor adapted to rotate under high load of the type including a plurality of impellers fixedly mounted (shrinkage-fit) on a main shaft. To effectively inhibit the rotor from vibrating due to loosened fitting of the impellers onto the main shaft the improvement consists of each of the impellers being provided with a sleeve portion which is made integral with the impeller. The sleeve portion is located at a position removed from the main part of the impeller along the axial direction of the main shaft with the position being determined in accordance with the theory of strength of materials in such a manner that displacement of the impeller in the radial direction due to centrifugal force resulting from rotation of the rotary machine has no effect on determination of the position of the sleeve portion, wherein the sleeve portion is shrink fit onto the main shaft of the impellers.
摘要翻译： 一种改进的旋转机器，例如适于在包括在主轴上固定安装（收缩配合）的多个叶轮的高负载下旋转的离心式压缩机。 为了有效地抑制转子由于叶轮在主轴上的松动装配而振动，改进之处在于每个叶轮设置有与叶轮一体形成的套筒部分。 套筒部分位于沿着主轴的轴向从叶轮的主要部分移除的位置，该位置根据材料的强度理论确定，使得叶轮在径向上的位移 由于旋转机械的旋转引起的离心力的方向对于确定套筒部分的位置没有影响，其中套筒部分被收缩配合到叶轮的主轴上。
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公开(公告)号：US4706969A
公开(公告)日：1987-11-17
申请号：US839361
申请日：1986-03-13
CPC分类号： F16J15/3464 , F01D11/003 , F01D25/183
摘要： A device for sealing the shaft of a turbo machine in which there are disposed a shaft sealing side plate attached to a casing, an atmospheric side floating ring and an in-machine side floating ring arranged in a seal case and associated with the shaft with the interposition of a small space, the atmospheric side floating ring having an atmospheric side end surface in contact with the shaft sealing side plate, the in-machine side floating ring having an in-machine side end surface in contact with the seal case; the device being characterized in that a flexible ring which is deformable in compliance with the deformation of the atmospheric side floating ring during driving is interposed between the atmospheric side floating ring and the shaft sealing side plate, whereby an excessive load is not applied between each white metal of both the floating rings and a seal sleeve, hardening and scalling loss of the white metal are prevented, and the reliability of sealing in the turbo machine is improved.
摘要翻译： 一种用于密封涡轮机的轴的装置，其中设置有安装在壳体上的轴密封侧板，大气侧浮动环和机内侧浮动环，其布置在密封壳体中并与轴相关联 插入小空间，大气侧浮环具有与轴封侧板接触的大气侧端面，机内侧浮动环具有与密封壳体接触的机内侧端面; 该装置的特征在于，在大气侧浮动环和轴密封侧板之间插入符合大气侧浮动环的变形的可变形的柔性环，由此在每个白色 防止了浮环和密封套的金属，白金属的硬化和剥落损失，提高了涡轮机的密封可靠性。
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公开(公告)号：US4756665A
公开(公告)日：1988-07-12
申请号：US93141
申请日：1987-09-02
CPC分类号： F04D29/4206
摘要： In a centrifugal compressor of the type that has a head chamber in which various auxiliary passageways are provided that is mounted to a main chamber containing an impeller therein, an annular body is mounted to a free end of the head chamber via seal means, passageways which communicate with respective ones of the various auxiliary passageways are provided within the annular body, and external piping communicating with the respective passageways are fixedly secured to an outer circumferential portion of the annular body.
摘要翻译： 在具有头室的离心式压缩机中，其中设置有各种辅助通道，其中安装有包含叶轮的主室，环形体经由密封装置的通道安装到头腔的自由端，通道 与各个辅助通路中的各个辅助通路相连通设置在环状体内，与各通路连通的外部配管固定在环状体的外周部。
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公开(公告)号：US4715778A
公开(公告)日：1987-12-29
申请号：US857490
申请日：1986-04-30
CPC分类号： F04D29/051 , F04D17/122 , F04D29/624
摘要： A centrifugal compressor of the type in which disassembly and assembly of the compressor is effected by taking out and inserting internal component parts including end walls for closing ends of a cylindrical rotor chamber wall from and into a cylindrical rotor chamber in the axial direction thereof, including intake chamber side communication holes communicating with an intake chamber formed within the cylindrical rotor chamber and a propelling force balance chamber side communication hole communicating with a propelling force balance chamber formed within the cylindrical rotor chamber. The intake chamber side communication holes are formed in the internal component part and in the cylindrical rotor chamber wall, respectively. The propelling force balance chamber side communication holes are respectively provided in an inner axial end surface of the cylindrical rotor chamber wall and an end wall removably fitted in the cylindrical rotor chamber wall with a portion of the end wall abutting the inner axial end surface of the cylindrical rotor chamber wall. The intake chamber side communication hole and the propelling force balance chamber communication hole provided in the cylindrical rotor chamber wall are communicated with each other through a balance pipe mounted on an outer surface of the cylindrical rotor chamber wall.
摘要翻译： 一种离心式压缩机，其中压缩机的拆卸和组装是通过从其圆柱形转子室的轴向方向取出并插入包括用于将圆筒形转子室壁的端部封闭的圆柱形转子室壁的端壁的内部部件，包括 与形成在圆筒形转子室内的进气室连通的进气室侧连通孔和与形成在圆筒形转子室内的推进力平衡室连通的推进力平衡室侧连通孔。 进气室侧连通孔分别形成在内部部件和圆柱形转子室壁中。 推进力平衡室侧连通孔分别设置在圆柱形转子室壁的内轴向端面和可拆卸地装配在圆柱形转子室壁中的端壁，端壁的一部分邻接于圆筒形转子室壁的内轴向端面 圆柱形转子室壁。 设置在圆筒形转子室壁中的进气室侧连通孔和推进力平衡室连通孔通过安装在圆筒形转子室壁的外表面上的平衡管相互连通。
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公开(公告)号：US4708587A
公开(公告)日：1987-11-24
申请号：US832680
申请日：1986-02-25
CPC分类号： F04D29/051
摘要： A centrifugal compressor includes an impeller of a make-up (compressing) pump stage, a first balancing ring for generating axial thrust on an impellar shaft for balancing the axial thrust generated by the make-up pump stage, an impeller of a recycle stage and a second balancing ring disposed between the make-up pump stage and the recycle stage. The impellers and balancing rings are fixedly mounted on the same impellar shaft in a common casing. The diameters of the first and second balancing ring and a liner ring disposed at a suction side of the impeller of the recycle stage are substantially identical with each other.
摘要翻译： 一种离心式压缩机包括一个补充（压缩）泵级的叶轮，一个用于在轴流轴上产生轴向推力的第一平衡环，用于平衡由补充泵级产生的轴向推力，再循环级的叶轮和 设置在补充泵级和再循环级之间的第二平衡环。 叶轮和平衡环固定地安装在同一个外壳中的相同的轴上。 第一和第二平衡环的直径和设置在再循环级的叶轮的吸力侧的衬套环彼此基本相同。
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公开(公告)号：US5131815A
公开(公告)日：1992-07-21
申请号：US601857
申请日：1990-10-24
CPC分类号： F01D5/145 , F01D5/141 , F05D2240/301 , Y10S416/02
摘要： The known rotor blade for use with axial-flow machines is improved. The improvement resides in a novel configuration of the blade body of the rotor blade. A leading edge of a tip end portion of the blade body is inclined forward (in the upstream direction of flow) and also advances in a direction of rotation, towards a tip end surface of the blade body. In the tip end portion between the tip end surface and a cross section displaced from the tip end surface towards the central portion of the blade body by 1/2 of a chord length of the tip end surface, the configuration of the leading edge of the tip end portion is such that an angle S of skew thereof over which the leading edge of the tip end portion advances in the direction of rotation and an effective skew amount .THETA..sub.s eff thereof of the angle over which the leading edge of the tip end portion is inclined forward in the upstream direction falls in a particular region in a graph of S vs. .THETA..sub.s eff delimited by 4 specific points determined through experiments.
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