Turbine shutdown control system
    11.
    发明授权
    Turbine shutdown control system 失效
    涡轮关机控制系统

    公开(公告)号:US4695221A

    公开(公告)日:1987-09-22

    申请号:US804677

    申请日:1985-12-04

    CPC classification number: F01D17/18 F01D21/02

    Abstract: A turbine shutdown control system for controlling a turbine powering two load groups. Upon loss of one load group, a first control valve will close to interrupt the fluid flow to the turbine. A second modulating valve in parallel with the first valve remains open to provide sufficient fluid flow to the turbine to power the second load group.

    Abstract translation: 一种涡轮关闭控制系统,用于控制对两个负载组起动的涡轮。 当一个负载组丢失时,第一个控制阀将关闭以中断流向涡轮机的流体流。 与第一阀并联的第二调节阀保持打开,以向涡轮机提供足够的流体流动以为第二负载组提供动力。

    Shaft mounting device and method
    12.
    发明授权
    Shaft mounting device and method 失效
    轴安装装置及方法

    公开(公告)号:US4385768A

    公开(公告)日:1983-05-31

    申请号:US255242

    申请日:1981-04-17

    CPC classification number: F04D29/051 F16C17/26 F16C39/04 G01L5/12 Y10S277/928

    Abstract: A device for accommodating and measuring thrust loads on a rotatably mounted shaft wherein the thrust loading is in either axial direction. The rotatably mounted shaft has two shoulders facing in opposite axial directions which cooperate with a pair of thrust bearings to constrain the shaft to a limited range of axial movement. Thrust rings associated with the shoulders are positioned between the shoulders and the bearings and are biased toward the bearings by resilient members to resist the axial movement of the shaft between the bearings. Sensing systems are arranged to measure the axial displacement of the shaft and provide input to thrust monitoring and control systems. A method for preventing damage to labyrinth seals on the shaft during start up of the equipment is also provided.

    Abstract translation: 用于容纳和测量可旋转地安装的轴上的推力载荷的装置,其中推力载荷处于任一轴向。 可旋转安装的轴具有面向相反轴向的两个肩部,其与一对推力轴承配合,以将轴约束到有限的轴向运动范围。 与肩部相关联的推力环位于肩部和轴承之间,并且通过弹性构件朝向轴承偏置以抵抗轴在轴承之间的轴向运动。 传感系统被布置成测量轴的轴向位移并向推力监测和控制系统提供输入。 还提供了一种用于在设备启动期间防止损坏轴上的迷宫式密封件的方法。

    Shaft mounting device and method
    13.
    发明授权
    Shaft mounting device and method 失效
    轴安装装置及方法

    公开(公告)号:US4287758A

    公开(公告)日:1981-09-08

    申请号:US58859

    申请日:1979-07-19

    Abstract: A device for accommodating and measuring thrust loads on a rotatably mounted shaft wherein the thrust loading is in either axial direction. The rotatably mounted shaft has two shoulders facing in opposite axial directions which cooperate with a pair of thrust bearings to constrain the shaft to a limited range of axial movement. Thrust rings associated with the shoulders are positioned between the shoulders and the bearings and are biased toward the bearings by resilient members to resist the axial movement of the shaft between the bearings. Sensing systems are arranged to measure the axial displacement of the shaft and provide input to thrust monitoring and control systems. A method for preventing damage to labyrinth seals on the shaft during start up of the equipment is also provided.

    Abstract translation: 用于容纳和测量可旋转地安装的轴上的推力载荷的装置,其中推力载荷处于任一轴向。 可旋转安装的轴具有面向相反轴向的两个肩部,其与一对推力轴承配合,以将轴约束到有限的轴向运动范围。 与肩部相关联的推力环位于肩部和轴承之间,并且通过弹性构件朝向轴承偏置以抵抗轴在轴承之间的轴向运动。 传感系统被布置成测量轴的轴向位移并向推力监测和控制系统提供输入。 还提供了一种用于在设备启动期间防止损坏轴上的迷宫式密封件的方法。

    Multi-stage rotary fluid handling apparatus
    14.
    发明授权
    Multi-stage rotary fluid handling apparatus 失效
    多级旋转流体处理装置

    公开(公告)号:US5651661A

    公开(公告)日:1997-07-29

    申请号:US692200

    申请日:1996-08-05

    CPC classification number: F04D17/12 F01D1/14 F01D5/04 F01D5/045 F04D29/286

    Abstract: Rotary fluid handling apparatus employing a wheel to provide multi-stage compression or expansion. A wheel having a first set of vanes includes a shroud about those vanes with a second set of vanes outwardly of the shroud. One set of vanes provides for low specific speed flow while the other set of vanes provides for high specific speed flow. A transfer passage interconnects the outlet of the first stage with the inlet of the second stage. The difference in temperature between the inlet flow to the system and the outlet flow from the system may be exchanged to increase efficiency. The multi-stage wheel and associated passages may be configured for either compression or turboexpansion.

    Abstract translation: 采用轮子提供多级压缩或膨胀的旋转流体处理装置。 具有第一组叶片的轮包括围绕这些叶片的护罩,在护罩的外侧具有第二组叶片。 一组叶片提供低的特定速度流,而另一组叶片提供高的特定速度流。 传送通道将第一级的出口与第二级的入口相互连接。 可以更换系统的入口流量与来自系统的出口流量之间的温差,以提高效率。 多级轮和相关联的通道可以被配置用于压缩或涡轮膨胀。

    Multi-stage rotary fluid handling apparatus
    15.
    发明授权
    Multi-stage rotary fluid handling apparatus 失效
    多级旋转流体处理装置

    公开(公告)号:US5545006A

    公开(公告)日:1996-08-13

    申请号:US440045

    申请日:1995-05-12

    CPC classification number: F04D17/12 F01D1/14 F01D5/04 F01D5/045 F04D29/286

    Abstract: Rotary fluid handling apparatus employing a wheel to provide multi-stage compression or expansion. A wheel having a first set of vanes includes a shroud about those vanes with a second set of vanes outwardly of the shroud. One set of vanes provides for low specific speed flow while the other set of vanes provides for high specific speed flow. A transfer passage interconnects the outlet of the first stage with the inlet of the second stage. The difference in temperature between the inlet flow to the system and the outlet flow from the system may be exchanged to increase efficiency. The multistage wheel and associated passages may be configured for either compression or turboexpansion.

    Abstract translation: 采用轮子提供多级压缩或膨胀的旋转流体处理装置。 具有第一组叶片的轮包括围绕这些叶片的护罩,在护罩的外侧具有第二组叶片。 一组叶片提供低的特定速度流,而另一组叶片提供高的特定速度流。 传送通道将第一级的出口与第二级的入口相互连接。 可以更换进入系统的入口流量与来自系统的出口流量之间的温差,以提高效率。 多级轮和相关联的通道可以被配置用于压缩或涡轮膨胀。

    Variable flow turbine expanders
    16.
    发明授权
    Variable flow turbine expanders 失效
    可变流量涡轮膨胀机

    公开(公告)号:US4789300A

    公开(公告)日:1988-12-06

    申请号:US505065

    申请日:1983-06-16

    CPC classification number: F01D17/00 F01D17/148 F01D17/18 F01D5/048

    Abstract: A radial inflow turbine having an axial discharge divided into concentric passages. The inner concentric passage or passages may be selectively blocked by means of a valve to accommodate a first range of flow rate. At higher flow rates, the valve is open to increase the effective nozzle area of the secondary nozzles at the discharge of the turbine wheel.

    Abstract translation: 具有分成同心通道的轴向排放的径向流入涡轮机。 可以通过阀选择性地阻止内部同心通道或通道以适应第一范围的流量。 在更高的流速下,阀门打开以增加在涡轮机叶轮排放时辅助喷嘴的有效喷嘴面积。

    Shaft seal for turbomachinery
    17.
    发明授权
    Shaft seal for turbomachinery 失效
    涡轮机轴封

    公开(公告)号:US4606652A

    公开(公告)日:1986-08-19

    申请号:US622703

    申请日:1984-06-20

    CPC classification number: F16J15/006 F16J15/40 Y10S277/927

    Abstract: A cryogenic turboexpander employing a rotor and a shaft fixed thereto including bearings rotatably supporting the shaft having a pressurized lubricating system. A labyrinth seal is positioned between the bearings and the rotor. A control valve is employed to sense differential pressure across a portion of the seal and regulate the pressure within a cavity between the seal and a near bearing.

    Abstract translation: 一种采用转子和固定在其上的轴的低温涡轮膨胀机,包括可旋转地支撑轴的轴承,该轴具有加压润滑系统。 迷宫式密封件位于轴承和转子之间。 使用控制阀来感测密封件的一部分上的压差并且调节密封件和近轴承之间的空腔内的压力。

    Bearing system with thrust compensation means
    18.
    发明授权
    Bearing system with thrust compensation means 失效
    带推力补偿装置的轴承系统

    公开(公告)号:US4273390A

    公开(公告)日:1981-06-16

    申请号:US905649

    申请日:1978-05-15

    CPC classification number: F16C39/04 F16C17/24 F16C33/10

    Abstract: The present invention pertains to a thrust bearing system including a thrust bearing structure having at least one pair of opposed bearing faces defining a bearing space therebetween, and a sub-system for delivering lubricant to the bearing space. A load sensor is provided in association with the bearing structure for determining the loads on the bearing faces. A thrust compensation sub-system is operably associated with the load sensor. This thrust compensation sub-system is operative, upon sensing by the load sensor of a thrust load on the bearing faces in excess of a predetermined limit, to increase the pressure of lubricant being delivered to the bearing space.

    Abstract translation: 本发明涉及一种推力轴承系统,该推力轴承系统包括一个止推轴承结构,该推力轴承结构具有至少一对相对的轴承面,在其间限定一个轴承空间,以及用于将润滑剂输送到轴承空间的子系统。 与轴承结构相关联地设置负载传感器,用于确定轴承面上的载荷。 推力补偿子系统与负载传感器可操作地相关联。 该推力补偿子系统在负载传感器感测到轴承面上的超过预定极限的推力负载时可操作,以增加输送到轴承空间的润滑剂的压力。

Patent Agency Ranking