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    • 1. 发明授权
    • Centrifugal compressor
    • 离心式压缩机
    • US4715778A
    • 1987-12-29
    • US857490
    • 1986-04-30
    • Kazuso KatayamaTaku IchiryuTsuneyoshi MitsuhashiYasushi MoriMasanori Kobayashi
    • Kazuso KatayamaTaku IchiryuTsuneyoshi MitsuhashiYasushi MoriMasanori Kobayashi
    • F04D29/42F04D15/00F04D29/04F04D29/62F01D3/04
    • F04D29/051F04D17/122F04D29/624
    • 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.
    • 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。
    • 3. 发明授权
    • Vibration suppressing sealing device for a rotary machine
    • 旋转机械的振动抑制密封装置
    • US4660838A
    • 1987-04-28
    • US839177
    • 1986-03-13
    • Kazuso KatayamaYasushi MoriHiroshi KankiShigeki MoriiKoji TakeshitaYutaka OzawaZenichi Yoshida
    • Kazuso KatayamaYasushi MoriHiroshi KankiShigeki MoriiKoji TakeshitaYutaka OzawaZenichi Yoshida
    • F16J15/40F01D25/18F04D29/12F16J15/44F16J15/54F16J15/16
    • F16J15/54F01D25/186F16J15/441Y10S277/916
    • In a sealing device for a rotary machine of the type that an annular groove is provided in an inner circumferential surface of a through-hole of a stationary member through which a rotary body supported rotatably by a bearing device extends, gap spaces between the rotary body and the both side portions of the stationary member on the opposite sides of the annular groove are sealed by seal rings, and a seal fluid feed hole for feeding a sealing fluid into the annular groove is provided in the stationary member; improvements are made in that a vibration suppressing movable ring is accommodated within the annular groove, the movable ring is mounted to the stationary member so as to be movable only in a radial direction so that an outside annular gap clearance may be formed between an outer circumferential surface of the movable ring and an inner circumferential surface of the annular groove and also an inside annular gap clearance may be formed between an inner circumferential surface of an inner hole of the movable ring and an outer circumferential surface of the rotary body which extends through the inner hole, the inside gap clearance is divided into a plurality of arcuate gap clearance sections, and the respective arcuate gap clearance sections a formed in a wedge-like shape that is gradually narrowed towards the downstream side in the direction of rotation of the rotary body.
    • 在用于旋转机械的密封装置中,环形槽设置在固定构件的通孔的内周面中,通过该固定构件的通孔可旋转地支撑由轴承装置延伸的旋转体,旋转体之间的间隙 并且固定构件在环形槽的相对侧的两侧部分被密封环密封,并且在固定构件中设置用于将密封流体供给到环形槽中的密封流体供给孔; 通过改善振动抑制活动环容纳在环形槽内,可移动环安装在固定件上,以便只能沿径向移动,从而可以在外周面 可动环的表面和环形槽的内周面以及内部环形间隙可以形成在可动环的内部孔的内周面和延伸穿过可动环的旋转体的外周面之间 所述内部间隙间隙分成多个弧形间隙间隙部,并且形成为楔形状的各自的弓形间隙间隙部分a朝向所述旋转体的旋转方向的下游侧逐渐变窄 。
    • 4. 发明授权
    • Sealing device for rotary fluid machine
    • 旋转流体机械密封装置
    • US4783179A
    • 1988-11-08
    • US99710
    • 1987-09-22
    • Kazuso KatayamaYasushi Mouri
    • Kazuso KatayamaYasushi Mouri
    • F01D25/18F16C17/03F16J15/44F16C33/72
    • F01D25/183F16C17/03F16J15/441
    • The present invention is directed to a sealing device for a rotary fluid machine having bearings which are disposed at opposite end portions in a shaft chamber and support a shaft, the sealing device being characterized by comprising a fluid seal of a fluid having a higher pressure than in the shaft chamber, the fluid seal being provided at a portion in the shaft chamber through which the shaft extends; usual dynamic pressure type bearings disposed in the middle of the fluid sealing device itself or in the vicinity of the middle thereof, the bearings being further received in a housing of the sealing device; and sealing members for partially confining a space defined between the housing and the bearings in an axial direction and a peripheral direction in order to form a closed loop; whereby the bearings are pressed downward by a differential pressure between a pressure of the fed fluid and a pressure in the outside of the shaft chamber so as to permit increasing the number of kinetic fulcrums for the shaft and to thereby heighten a safe speed of the shaft. According to the above constitution of the present invention, the fluid fed into the sealing device can be utilized effectively, and it can be realized to provide the highly efficient and inexpensive high-speed rotary fluid machine.
    • 本发明涉及一种用于旋转流体机械的密封装置,其具有设置在轴室中的相对端部并且支撑轴的轴承,该密封装置的特征在于包括流体密封件,该流体密封件具有比 在轴室中,流体密封件设置在轴室中通过其延伸的部分; 通常的动压型轴承设置在流体密封装置本身的中间或其中部附近,轴承还被容纳在密封装置的壳体中; 以及用于部分地限制在壳体和轴承之间沿轴向方向和周向方向限定的空间的密封构件,以形成闭环; 由此轴承通过供给流体的压力和轴室外部的压力之间的压差向下压,以便增加轴的动力支点的数量,从而提高轴的安全速度 。 根据本发明的上述结构,可以有效地利用供给到密封装置中的流体,可以实现提供高效廉价的高速旋转流体机械。