公开(公告)号：US20100034646A1

公开(公告)日：2010-02-11

申请号：US12534407

申请日：2009-08-03

申请人： Yohei MAGARA ,  Kazuyuki YAMAGUCHI ,  Tetsuya KUWANO ,  Haruo MIURA ,  Naohiko TAKAHASHI

发明人： Yohei MAGARA ,  Kazuyuki YAMAGUCHI ,  Tetsuya KUWANO ,  Haruo MIURA ,  Naohiko TAKAHASHI

IPC分类号： F04D29/08

CPC分类号： F04D29/102 ,  F04D29/0516 ,  F16J15/4472

摘要： The present invention provides a centrifugal compressor that inhibits possible leakage while reducing a destabilizing fluid force generated in a seal to prevent the possible instable vibration of a rotor. The centrifugal compressor includes a casing, a rotor rotatably installed in the casing and having an impeller, and seals provided in the clearance between the casing and the rotor to prevent a fluid from leaking through the clearance from a high pressure side to a low pressure side. The rotor rotates to compress gas. For example, the balance piston seal is composed of a damper seal with a plurality of holes and a labyrinth seal with an annular parallel groove; the damper seal and the labyrinth seal are continuously provided. The damper seal is disposed on the high pressure side in a leakage flow direction. The labyrinth seal is disposed on the low pressure side in the leakage flow direction.

摘要翻译： 本发明提供一种离心压缩机，其抑制可能的泄漏，同时减少在密封件中产生的不稳定的流体力，以防止转子可能的不稳定的振动。 离心压缩机包括壳体，可旋转地安装在壳体中并具有叶轮的转子和设置在壳体和转子之间的间隙中的密封件，以防止流体从间隙从高压侧泄漏到低压侧 。 转子旋转以压缩气体。 例如，平衡活塞密封件由具有多个孔的阻尼器密封件和具有环形平行槽的迷宫式密封件组成; 阻尼器密封件和迷宫式密封件被连续地设置。 阻尼器密封件在泄漏流动方向上设置在高压侧。 迷宫式密封件沿泄漏流动方向设置在低压侧。

公开(公告)号：US20100270308A1

公开(公告)日：2010-10-28

申请号：US12765111

申请日：2010-04-22

申请人： Tomohiro NARUSE ,  Tetsuya KUWANO ,  Taiji HASHIMOTO ,  Haruo MIURA ,  Mitsuhiro NARITA

发明人： Tomohiro NARUSE ,  Tetsuya KUWANO ,  Taiji HASHIMOTO ,  Haruo MIURA ,  Mitsuhiro NARITA

IPC分类号： B65D45/00

CPC分类号： F04D17/125 ,  F04D29/4206 ,  F04D29/624

摘要： Size reduction of a barrel-type casing using a shear key is aimed for while ensuring a necessary area of a head cover end surface. A shoulder is formed on the axially outer side of the outer circumferential surface of a head cover. The inner surface of a casing is provided with a circumferentially extending groove. Shear key structure includes a first shear key member disposed in the shoulder and the groove, such that at least a portion of its outer circumferential surface is in contact with the inner circumferential surface of the groove, and a second shear key member disposed adjacent to the first shear key member in the groove, the second shear key member having an axially projecting shoulder, its outer circumferential surface being in contact with an inner circumferential surface of the casing. The first and second shear key members are circumferentially segmented respectively into three or more members, and each member is radially fixed to the casing but not axially fastened to each other, to allow slight displacement between the first and second shear key members by a shear force.

摘要翻译： 针对使用剪切键的筒型壳体的尺寸减小是为了确保头罩端面的必要面积而进行的。 肩部形成在头罩的外周面的轴向外侧。 壳体的内表面设置有周向延伸的凹槽。 剪切键结构包括设置在肩部和凹槽中的第一剪切键构件，使得其外圆周表面的至少一部分与凹槽的内圆周表面接触，并且第二剪切键构件邻近 第一剪切键构件在槽中，第二剪切键构件具有轴向突出的肩部，其外周面与壳体的内周面接触。 第一和第二剪切键构件分别周向地分成三个或更多个构件，并且每个构件径向地固定到壳体而不是轴向地彼此紧固，以允许第一和第二剪切键构件之间的剪切力 。