公开(公告)号：US20070065276A1

公开(公告)日：2007-03-22

申请号：US11533222

申请日：2006-09-19

申请人： Michael Muller ,  Jay Robb ,  Filippo Mariani ,  Russell Houston

发明人： Michael Muller ,  Jay Robb ,  Filippo Mariani ,  Russell Houston

IPC分类号： F04D29/08

CPC分类号： F16J15/447 ,  F01D11/02 ,  F04D29/083 ,  F04D29/284 ,  F16J15/406

摘要： An impeller for a centrifugal gas compressor includes a stationary seal member that includes a plurality of seal tips. The impeller is operable to produce a flow of fluid. The impeller includes a hub having a front face and a back face. A plurality of blades extends from the front face. Each of the blades has an inducer portion and an exducer portion and cooperates with an adjacent blade and the front face to at least partially define one of a plurality of impeller channels. A portion of the flow of fluid passes through one of the impeller channels such that the flow of fluid defines a first pressure adjacent the inducer portion and a second pressure that is higher than the first pressure adjacent the exducer portion. A seal portion extends from the back face and includes a plurality of stepped surfaces. Each of the seal tips is disposed adjacent one of the stepped surfaces to define a plurality of seal points.

摘要翻译： 用于离心式气体压缩机的叶轮包括固定密封件，其包括多个密封尖端。 叶轮可操作以产生流体流。 叶轮包括具有正面和背面的轮毂。 多个叶片从前表面延伸。 每个叶片具有导流部分和传播部分，并且与邻近的叶片和前表面配合以至少部分地限定多个叶轮通道中的一个。 流体流的一部分通过叶轮通道中的一个，使得流体流动限定了邻近诱导部分的第一压力，并且第二压力高于邻近传播部分的第一压力。 密封部分从后表面延伸并且包括多个台阶表面。 每个密封尖端邻近一个台阶表面设置以限定多个密封点。

公开(公告)号：US20070065277A1

公开(公告)日：2007-03-22

申请号：US11533241

申请日：2006-09-19

申请人： Michael Muller ,  Jay Robb ,  Filippo Mariani

发明人： Michael Muller ,  Jay Robb ,  Filippo Mariani

IPC分类号： F04D29/08

CPC分类号： F16J15/447 ,  F04D29/083 ,  F04D29/284

摘要： A centrifugal compressor includes an impeller that defines an outside diameter and is rotatable about an axis to provide a flow of compressed fluid. A portion of the compressed fluid passes around the outside diameter to define a leakage flow. An extension extends from the impeller and includes a first seal portion that has an average diameter that is greater than or equal to about 50 percent of the outside diameter. A stationary seal ring includes a second seal portion that has a plurality of teeth. The second seal portion is disposed adjacent the first seal portion to define a seal that inhibits the passage of the leakage flow.

摘要翻译： 离心式压缩机包括限定外径并可围绕轴线旋转以提供压缩流体流的叶轮。 压缩流体的一部分围绕外径通过以限定泄漏流。 延伸部从叶轮延伸出来并且包括具有大于或等于外径的约50％的平均直径的第一密封部分。 固定密封环包括具有多个齿的第二密封部分。 第二密封部分邻近第一密封部分设置以限定阻止泄漏流通过的密封件。

公开(公告)号：US20070063449A1

公开(公告)日：2007-03-22

申请号：US11533234

申请日：2006-09-19

申请人： Michael Muller ,  Jay Robb ,  Filippo Mariani

发明人： Michael Muller ,  Jay Robb ,  Filippo Mariani

IPC分类号： F16J15/44

CPC分类号： F16J15/447 ,  F04D29/0516 ,  F04D29/083 ,  F04D29/284 ,  F16J15/406

摘要： A stationary seal ring is adapted to cooperate with a housing and an impeller to define a seal. The impeller is rotatable about an axis and includes a first seal portion and a plurality of blades that define an outside diameter. The stationary seal ring includes an alignment surface engageable with the housing, and a plurality of teeth. Each tooth is spaced axially from an adjacent tooth to define a cavity therebetween. Each tooth includes a tooth tip that cooperates with the first seal portion to define a seal point. A first tooth disposed nearest to the blades has a first tip diameter. Each subsequent tooth has a tip diameter that is smaller than the first tip diameter.

摘要翻译： 固定密封环适于与壳体和叶轮配合以限定密封。 叶轮可绕轴线旋转并且包括限定外径的第一密封部分和多个叶片。 固定密封环包括可与壳体接合的对准表面和多个齿。 每个齿与邻近的齿轴向间隔开，以在它们之间形成腔。 每个齿包括与第一密封部分配合以限定密封点的齿尖。 最靠近叶片设置的第一齿具有第一尖端直径。 每个随后的齿具有小于第一末端直径的尖端直径。

公开(公告)号：US20070065300A1

公开(公告)日：2007-03-22

申请号：US11533249

申请日：2006-09-19

申请人： Filippo Mariani ,  Jay Robb

发明人： Filippo Mariani ,  Jay Robb

IPC分类号： F04B25/00 ,  F04B3/00

CPC分类号： F04D25/06 ,  F04D17/12 ,  F04D25/16 ,  F04D27/0261 ,  F04D27/0269

摘要： A multi-stage fluid compression system includes a first centrifugal compressor stage having a first inlet and a first outlet and a second centrifugal compressor stage having a second inlet and a second outlet. The second inlet receives a flow of compressed fluid from the first outlet. A first variable-speed motor is coupled to the first centrifugal compressor stage and is operable to drive the first centrifugal compressor stage at a first speed. A second variable speed motor is coupled to the second centrifugal compressor stage and is operable to drive the second centrifugal compressor stage at a second speed. The first speed and the second speed are each independently variable.

摘要翻译： 多级流体压缩系统包括具有第一入口和第一出口的第一离心压缩机级和具有第二入口和第二出口的第二离心式压缩机级。 第二入口接收来自第一出口的压缩流体流。 第一变速电动机联接到第一离心式压缩机级并且可操作以以第一速度驱动第一离心式压缩机级。 第二变速电动机联接到第二离心压缩机级，并且可操作以以第二速度驱动第二离心式压缩机级。 第一速度和第二速度各自可变。