Barrel-shaped centrifugal compressor
    1.
    发明授权
    Barrel-shaped centrifugal compressor 有权
    桶式离心压缩机

    公开(公告)号:US09004857B2

    公开(公告)日:2015-04-14

    申请号:US13166066

    申请日:2011-06-22

    IPC分类号: F04D29/08 F04D29/42 F04D29/62

    摘要: In a centrifugal compressor, for the purpose of preventing the positions of a diaphragm and a head flange in a radial direction from moving with respect to a casing, preventing the unstable vibration of the rotor and enabling an efficient and stable operation even on high-pressure conditions, there is provided a barrel-shaped centrifugal compressor including a casing, a diaphragm located in the casing to define a flow channel, and a head flange attached to the end of the casing by a shear key, wherein in the inner peripheral surface of the casing and the outer peripheral surface of abutment portions of the diaphragm and the head flange in which they are abutted on the inner peripheral surface of the casing, sliding key grooves which are vertical to the surfaces are provided at least two portions in a peripheral direction, and sliding keys are provided in the key grooves.

    摘要翻译: 在离心式压缩机中,为了防止膜片和头部凸缘在径向上的位置相对于壳体移动的目的,防止转子的不稳定的振动,并且即使在高压下也能够有效且稳定地操作 条件是提供了一种桶形离心压缩机,其包括壳体,位于壳体中以限定流动通道的隔膜以及通过剪切键附接到壳体的端部的头部凸缘,其中,在 壳体和隔膜的邻接部分的外周面与头部凸缘抵接在壳体的内周面上,与表面垂直的滑动键槽设置在周向上的至少两个部分 ,并且滑动键设置在键槽中。

    Heat exchanger for air compressor
    2.
    发明授权
    Heat exchanger for air compressor 有权
    空气压缩机换热器

    公开(公告)号:US07172015B2

    公开(公告)日:2007-02-06

    申请号:US10920359

    申请日:2004-08-18

    IPC分类号: F28F9/013 F28F3/00 F02B33/00

    摘要: A heat exchanger used in a screw air compressor has a low temperature chamber through which low temperature fluid flows and a high temperature chamber through which high temperature fluid flows. The low temperature chamber and the high temperature chamber are separated by a partition plate. The high temperature chambers and the low temperature chambers are alternately arranged in layers, so that the low temperature chambers are disposed at both ends in a layered direction. Additionally, the flowing direction of the low temperature fluid in the low temperature chambers and the flowing direction of the high temperature fluid in the high temperature chambers are substantially orthogonal to each other.

    摘要翻译: 用于螺杆空气压缩机的热交换器具有低温流体流过的低温室和高温流体流过的高温室。 低温室和高温室由隔板隔开。 高温室和低温室交替排列成层状,使得低温室分层设置在两端。 此外,低温室中的低温流体的流动方向和高温室中的高温流体的流动方向基本上彼此正交。

    Reciprocating compressor
    3.
    发明授权
    Reciprocating compressor 有权
    往复式压缩机

    公开(公告)号:US07052250B2

    公开(公告)日:2006-05-30

    申请号:US10600542

    申请日:2003-06-23

    IPC分类号: F04B23/00 F04B39/00 F04B53/00

    摘要: A reciprocating compressor, being small-sized and compact, for compressing hydrogen gas to be used in a fuel-cell car, has a crankshaft, to which an end of a connecting rod is connected. The other end of the connecting rod is connected to a crosshead. To the crosshead are connected a pair of shafts, each extending in directions opposing to each other. To each of the shafts is connected a plunger. The each plunger is received within a cylinder at the tip portion thereof. A pair of plungers moves reciprocally on an almost same axis, and the crosshead is formed in one body.

    摘要翻译: 用于压缩在燃料电池车中使用的氢气的小而紧凑的往复式压缩机具有连接杆的端部的曲轴。 连杆的另一端连接到十字头。 十字头连接有一对轴,每个轴彼此相对的方向延伸。 每个轴连接一个柱塞。 每个柱塞在其尖端部分内容纳在气缸内。 一对柱塞在几乎相同的轴线上往复运动,十字头形成在一个体内。

    Heat exchanger for air compressor
    4.
    发明申请
    Heat exchanger for air compressor 有权
    空气压缩机换热器

    公开(公告)号:US20050082044A1

    公开(公告)日:2005-04-21

    申请号:US10920359

    申请日:2004-08-18

    摘要: A heat exchanger used in a screw air compressor has a low temperature chamber through which low temperature fluid flows and a high temperature chamber through which high temperature fluid flows. The low temperature chamber and the high temperature chamber are separated by a partition plate. The high temperature chambers and the low temperature chambers are alternately arranged in layers, so that the low temperature chambers are disposed at both ends in a layered direction. Additionally, the flowing direction of the low temperature fluid in the low temperature chambers and the flowing direction of the high temperature fluid in the high temperature chambers are substantially orthogonal to each other.

    摘要翻译: 用于螺杆空气压缩机的热交换器具有低温流体流过的低温室和高温流体流过的高温室。 低温室和高温室由隔板隔开。 高温室和低温室交替排列成层状,使得低温室分层设置在两端。 此外,低温室中的低温流体的流动方向和高温室中的高温流体的流动方向基本上彼此正交。

    Method of estimating a rotor position of synchronous motor, method of controlling synchronous motor with no position sensor and a controller of synchronous motor
    5.
    发明授权
    Method of estimating a rotor position of synchronous motor, method of controlling synchronous motor with no position sensor and a controller of synchronous motor 有权
    估算同步电机转子位置的方法,无位置传感器同步电机控制方法和同步电机控制器

    公开(公告)号:US06396229B1

    公开(公告)日:2002-05-28

    申请号:US09654086

    申请日:2000-09-01

    IPC分类号: H02P618

    摘要: In a method of accurately estimating the rotor position of a synchronous motor having saliency from observable quantities, a control system for adjusting an output frequency of an inverter on the basis of a value of axis shift of the synchronous motor to operate the motor synchronously with the output frequency is provided with an induced voltage estimating/axis shift operating unit. Currents resulting from conversion of detection currents on a control axis, voltage commands to be inputted to an inverse converter and a speed command are inputted to the operating unit to estimate an induced voltage of the motor 2 and determine the axis shift from a phase of the estimated induced voltage. By using an electrical constant Lq of inductance, a voltage drop across the inductance is determined by the product of a motor speed command and magnitude of motor current. The voltage drop is a virtual quantity that does not depend on the motor rotor position. A vector of the virtual quantity is so introduced as not to change a phase of the original induced voltage.

    摘要翻译: 在以可观测量准确估计具有显着性的同步电动机的转子位置的方法中,基于同步电动机的轴移动值来调整逆变器的输出频率的控制系统,以与电动机同步地操作电动机 输出频率设置有感应电压估计/轴移动操作单元。 控制轴上的检测电流转换所产生的电流,输入到逆变换器的电压指令和速度指令被输入到运算单元,以估计电动机2的感应电压,并从 估计感应电压。 通过使用电感的电常数Lq,电感上的电压降由电机速度指令和电机电流的大小决定。 电压降是不依赖于电机转子位置的虚拟量。 如此引入虚拟量的矢量不改变原始感应电压的相位。

    Two-stage centrifugal compressor
    7.
    发明授权
    Two-stage centrifugal compressor 失效
    两级离心压缩机

    公开(公告)号:US06196809B1

    公开(公告)日:2001-03-06

    申请号:US09023686

    申请日:1998-02-13

    IPC分类号: F04B2300

    摘要: A low pressure-side first-stage compressor impeller and a high pressure-side second-stage compressor impeller are mounted respectively on opposite ends of a rotation shaft. A rotor of an electric motor for driving the two impellers is formed at a central portion of the rotation shaft. A stator of the motor is held by a motor casing. The motor casing, a first-stage compressor casing, which cooperates with the first-stage compressor impeller to form a first-stage compressor, and a second-stage compressor casing, which cooperates with the second-stage compressor impeller to form a second-stage compressor, are cast into an integral construction. This integral casing is further formed integrally with an intermediate cooler, disposed downstream of the first-stage compressor, and a discharge cooler disposed downstream of the second-stage compressor. The intermediate cooler and the discharge cooler are disposed below the motor casing in generally parallel relation to the rotation shaft, and the main portions of the two-stage centrifugal compressor are combined into a compact, generally rectangular parallelepiped configuration.

    摘要翻译: 低压侧的第一级压缩机叶轮和高压侧的后级的压缩机叶轮分别安装在旋转轴的两端。 用于驱动两个叶轮的电动机的转子形成在旋转轴的中心部分。 马达的定子由马达壳体保持。 电动机壳体,与第一级压缩机叶轮配合形成第一级压缩机的第一级压缩机壳体和与第二级压缩机叶轮配合形成第二级压缩机叶轮的第二级压缩机壳体, 阶段压缩机,铸造成一体化结构。 该一体式外壳进一步与布置在第一级压缩机下游的中间冷却器一体地形成,并且设置在第二级压缩机的下游。 中间冷却器和排放冷却器以大致平行于旋转轴的方式设置在电动机壳体下方,并且两级离心压缩机的主要部分组合成紧凑的大致长方体形状。

    Stacked rotor
    8.
    发明授权
    Stacked rotor 失效
    堆叠转子

    公开(公告)号:US4453889A

    公开(公告)日:1984-06-12

    申请号:US407628

    申请日:1982-08-12

    IPC分类号: F01D5/06 F04D29/34

    CPC分类号: F01D5/066

    摘要: A stacked rotor of an axial-flow type machine having a plurality of discs stacked in the axial direction and united into one body by stacking bolts, each of the discs being provided on the periphery thereof with a plurality of rotor blades. The portions of bolt holes in adjacent discs at the juncture of these discs are provided with opposing tapered surfaces. Each stacking bolt is supported by the discs through bolt deformation resisting members having an outer peripheral surface making close contact with the tapered surfaces of the bolt holes and an inner peripheral surface fitting around the stacking bolt.

    摘要翻译: 轴流式机器的堆叠转子,其具有沿轴向堆叠的多个盘,并且通过堆叠螺栓而被结合成一体,每个盘的周边上设置有多个转子叶片。 在这些盘的接合处的相邻盘中的螺栓孔的部分设置有相对的锥形表面。 每个堆叠螺栓通过具有与螺栓孔的锥形表面紧密接触的外周表面的螺栓变形阻力构件和安装在堆叠螺栓周围的内周表面通过盘支撑。

    Apparatus and method for measuring vibration characteristics
    9.
    发明授权
    Apparatus and method for measuring vibration characteristics 有权
    用于测量振动特性的装置和方法

    公开(公告)号:US08960009B2

    公开(公告)日:2015-02-24

    申请号:US13456258

    申请日:2012-04-26

    IPC分类号: G01H1/00

    CPC分类号: G01H1/003 F16C32/0444

    摘要: A vibration characteristic measuring apparatus includes a magnetic bearing that generates magnetic force on the rotating body of a multi-stage centrifugal compressor, a displacement sensor that measures the vibration amplitude of the rotating body, a current amplifier that supplies a current to the magnetic bearing, and an excitation controller which outputs an excitation control signal for applying vibration to the rotating body and which measures the response characteristics of the vibration of the rotating body to the excitation control signal. The excitation controller outputs a rotating body control signal obtained by adding a vibration eliminating signal for eliminating unbalance vibration of the rotating body to the excitation control signal when measuring the response characteristics, and the current amplifier supplies a current that generates magnetic force in accordance with the rotating body control signal to the magnetic bearing.

    摘要翻译: 振动特性测量装置包括:在多级离心式压缩机的旋转体上产生磁力的磁性轴承;测量旋转体的振动幅度的位移传感器;向磁性轴承供给电流的电流放大器; 以及激励控制器,其输出用于对旋转体施加振动的激励控制信号,并且测量旋转体的振动对激励控制信号的响应特性。 励磁控制器在测量响应特性时,输出通过增加用于消除旋转体的不平衡振动的振动消除信号而获得的旋转体控制信号,并且电流放大器根据所述激励控制信号提供产生磁力的电流 旋转体控制信号到磁轴承。

    End wall closure apparatus
    10.
    发明授权
    End wall closure apparatus 有权
    端壁封闭装置

    公开(公告)号:US08631961B2

    公开(公告)日:2014-01-21

    申请号:US12765111

    申请日:2010-04-22

    IPC分类号: F17C13/06 B65D45/10

    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 。