Brake or clutch lining comprising a wear and tear and temperature determination unit
    1.
    发明授权
    Brake or clutch lining comprising a wear and tear and temperature determination unit 有权
    包括磨损和温度测定单元的制动器或离合器衬片

    公开(公告)号:US08144003B2

    公开(公告)日:2012-03-27

    申请号:US12438153

    申请日:2007-08-18

    IPC分类号: B60Q1/00

    摘要: A brake or clutch lining (10; 12) has a friction lining (22) arranged on a carrier plate (20). For purposes of detecting a critical operating temperature, an electrically conductive material (24) that has a phase-transition temperature that falls within the range of the critical operating temperature of the friction lining to be detected is provided in at least one place in the friction lining (22).

    摘要翻译: 制动器或离合器衬套(10; 12)具有布置在承载板(20)上的摩擦衬里(22)。 为了检测临界操作温度,具有相转变温度落在待检测的摩擦衬片的临界工作温度范围内的导电材料(24)设置在摩擦中的至少一个位置 衬里(22)。

    Method and device for the production of two-channel or multi-channel pulse-width modulated rectangular pulses
    2.
    发明申请
    Method and device for the production of two-channel or multi-channel pulse-width modulated rectangular pulses 失效
    用于生产双通道或多通道脉宽调制矩形脉冲的方法和装置

    公开(公告)号:US20060055483A1

    公开(公告)日:2006-03-16

    申请号:US10531199

    申请日:2003-10-01

    IPC分类号: H03K7/08

    CPC分类号: H03K7/08

    摘要: The invention relates to a method and a device for the production of two-channel or multi-channel pulse-width-modulated rectangular pulses. According to the invention, exactly one pulse is discharged within a period in each channel. The inception of a pulse in relation to the moment of inception is delayed by an actual dead time. The dead time is respectively kept constant for at least one period and a new value for the dead time is produced for a modulation of the pulse width and/or a new value is produced for the duration of the period and the actual dead time and/or the actual duration of the period is set at the beginning of the desired period according to the new value of the dead time and/or duration of the period.

    摘要翻译: 本发明涉及用于生产双通道或多通道脉冲宽度调制矩形脉冲的方法和装置。 根据本发明,在每个通道中的一个周期内恰好只有一个脉冲被放电。 与成立时刻相关的脉搏的启动延迟了实际的死亡时间。 死区时间分别保持恒定至少一个周期,并且产生用于脉冲宽度调制的死时间的新值和/或在周期和实际死区时间内生成新值和/ 或者根据死区时间的新值和/或期间的持续时间,将期间的实际持续时间设定在期望期间的开始处。

    Method of utilizing flowable devices in wellbores
    3.
    发明授权
    Method of utilizing flowable devices in wellbores 有权
    在井筒中利用可流动装置的方法

    公开(公告)号:US06976535B2

    公开(公告)日:2005-12-20

    申请号:US10753117

    申请日:2004-01-07

    IPC分类号: E21B47/01 E21B47/12 E21B47/00

    CPC分类号: E21B47/12 E21B47/01

    摘要: Flowable devices provide communicate between surface and downhole instruments. The flowable devices having unique addresses are introduced into the flow of a fluid flowing in the wellbore. The flowable devices are used for providing information to a downhole controller and/or retrieving information from a downhole device.

    摘要翻译: 可流动装置提供表面和井下仪器之间的连通。 具有独特地址的可流动装置被引入到在井筒中流动的流体的流中。 可流动装置用于向井下控制器提供信息和/或从井下装置检索信息。

    Method and voltage converter for converting DC input voltage to AC voltage in a system frequency range
    4.
    发明授权
    Method and voltage converter for converting DC input voltage to AC voltage in a system frequency range 失效
    用于将直流输入电压转换为系统频率范围内的交流电压的方法和电压转换器

    公开(公告)号:US06944037B2

    公开(公告)日:2005-09-13

    申请号:US10682534

    申请日:2003-10-10

    IPC分类号: H02M7/48 H02M7/44

    CPC分类号: H02M7/4807

    摘要: A method and apparatus for generating an AC voltage in a system frequency range from a DC input voltage. Two opposite-pole, pulse-width modulated (PWM) rectangular pulses having a high switching rate are applied to the primary winding of a transformer. Every pulse is modulated to correspond to a half-wave of the AC voltage to be generated. On the secondary side of the transformer, the impulses of both PWM pulse trains are rectified to create a pulse train of a single polarity, the pulse width modulation of which corresponds to subsequent half-waves of the AC voltage to be generated. The pulse train so obtained is periodically commutated at double the frequency of the AC voltage to be generated so that a PWM signal representative of the AC output voltage is obtained with respect to amplitude, frequency, and polarity.

    摘要翻译: 一种在DC输入电压的系统频率范围内产生AC电压的方法和装置。 对变压器的初级绕组施加具有高开关速率的两个对极,脉冲宽度调制(PWM)矩形脉冲。 每个脉冲被调制以对应于要产生的AC电压的半波。 在变压器的次级侧,两个PWM脉冲串的脉冲被整流以产生单个极性的脉冲串,其脉冲宽度调制对应于将要产生的AC电压的后续半波。 如此获得的脉冲串以要产生的AC电压的频率的两倍周期性地换向,从而获得表示相对于幅度,频率和极性的AC输出电压的PWM信号。

    Method of utilizing flowable devices in wellbores
    5.
    发明申请
    Method of utilizing flowable devices in wellbores 有权
    在井筒中利用可流动装置的方法

    公开(公告)号:US20050011645A1

    公开(公告)日:2005-01-20

    申请号:US10753117

    申请日:2004-01-07

    CPC分类号: E21B47/12 E21B47/01

    摘要: This invention relates to flowable devices and methods of utilizing such flowable devices in wellbores to provide communicate between surface and downhole instruments, among downhole devices, establish a communication network in the wellbore, act as sensors, and act as power transfer devices. The flowable devices are adapted to move with a fluid flowing in the wellbore. The flowable device may be memory device or a device that can provide a measure of a parameter of interest or act as a power transfer device. The flowable devices are introduced into the flow of a fluid flowing in the wellbore. The fluid moves the device in the wellbore. If the device is a data exchange device, it may be channeled in a manner that enables a device in the wellbore to interact with the memory device, which may include retrieving information from the flowable device and/or recording information on the flowable device. The sensor in a flowable device can take a variety of measurement(s) in the wellbore. The flowable devices return to the surface with the returning fluid.

    摘要翻译: 本发明涉及可流动的装置和在井筒中利用这种可流动装置的方法,以在井下装置之间提供表面和井下装置之间的通信,在井筒中建立通信网络,作为传感器,并且用作动力传递装置。 可流动装置适于与在井筒中流动的流体一起移动。 可流动装置可以是可以提供感兴趣的参数的量度或用作功率传输装置的存储器装置或装置。 可流动装置被引入到在井筒中流动的流体的流中。 流体将设备移动到井筒中。 如果设备是数据交换设备,则可以以使得井眼中的设备能够与存储器设备交互的方式来引导它,其可以包括从可流动设备检索信息和/或在可流动设备上记录信息。 可流动装置中的传感器可以在井眼中进行各种测量。 可流动装置返回流体返回到表面。

    Formation testing apparatus and method
    6.
    发明授权
    Formation testing apparatus and method 失效
    地层试验装置及方法

    公开(公告)号:US6047239A

    公开(公告)日:2000-04-04

    申请号:US88208

    申请日:1998-06-01

    摘要: An apparatus and method are disclosed for obtaining samples of pristine formation or formation fluid, using a work string designed for performing other downhole work such as drilling, workover operations, or re-entry operations. An extendable element extends against the formation wall to obtain the pristine formation or fluid sample. While the test tool is in standby condition, the extendable element is withdrawn within the work string, protected by other structure from damage during operation of the work string. The apparatus is used to sense or sample downhole conditions while using a work string, and the measurements or samples taken can be used to adjust working fluid properties without withdrawing the work string from the bore hole. When the extendable element is a packer, the apparatus can be used to prevent a kick from reaching the surface, adjust the density of the drilling fluid, and thereafter continuing use of the work string.

    摘要翻译: 公开了一种用于获得原始形成或地层流体样品的装置和方法,所述设备和方法使用设计用于执行其他井下作业(例如钻井,修井操作或重新进入操作)的工作柱。 可延伸元件抵靠地层壁延伸以获得原始地层或流体样品。 当测试工具处于待机状态时,可伸缩元件在工作串中被抽出,受到其他结构的保护,以免在工作串的操作过程中损坏。 该装置用于在使用工作串时感测或采样井下状况,并且所采集的测量或样本可用于调节工作流体性质而不从钻孔中撤出工作线。 当可延伸元件是封隔器时,该装置可以用于防止踢脚到达表面,调整钻井液的密度,然后继续使用工作串。

    Method and device for the production of two-channel or multi-channel pulse-width modulated rectangular pulses
    7.
    发明授权
    Method and device for the production of two-channel or multi-channel pulse-width modulated rectangular pulses 失效
    用于生产双通道或多通道脉宽调制矩形脉冲的方法和装置

    公开(公告)号:US07375480B2

    公开(公告)日:2008-05-20

    申请号:US10531199

    申请日:2003-10-01

    IPC分类号: H02K21/00

    CPC分类号: H03K7/08

    摘要: The invention relates to a method and a device for the production of two-channel or multi-channel pulse-width-modulated rectangular pulses. According to the invention, exactly one pulse is discharged within a period in each channel. The inception of a pulse in relation to the moment of inception is delayed by an actual dead time. The dead time is respectively kept constant for at least one period and a new value for the dead time is produced for a modulation of the pulse width and/or a new value is produced for the duration of the period and the actual dead time and/or the actual duration of the period is set at the beginning of the desired period according to the new value of the dead time and/or duration of the period.

    摘要翻译: 本发明涉及用于生产双通道或多通道脉冲宽度调制矩形脉冲的方法和装置。 根据本发明,在每个通道中的一个周期内恰好只有一个脉冲被放电。 与成立时刻相关的脉搏的启动延迟了实际的死亡时间。 死区时间分别保持恒定至少一个周期,并且产生用于脉冲宽度调制的死时间的新值和/或在周期和实际死区时间内生成新值和/ 或者根据死区时间的新值和/或期间的持续时间,将期间的实际持续时间设定在期望期间的开始处。

    Modified formation testing apparatus and method
    9.
    发明授权
    Modified formation testing apparatus and method 有权
    改性地层试验装置及方法

    公开(公告)号:US6157893A

    公开(公告)日:2000-12-05

    申请号:US302888

    申请日:1999-04-30

    摘要: An apparatus and method for obtaining samples of pristine formation or formation fluid, using a work string designed for performing other downhole work such as drilling, workover operations, or re-entry operations. An extendable element extends against the formation wall to obtain the pristine formation or fluid sample. While the test tool is in a standby condition, the extendable element is withdrawn within the work string, protected by other structure from damage during operation of the work string. The test apparatus is mounted on a sliding, non-rotating, sleeve on the work string.

    摘要翻译: 一种用于获得原始形成或地层流体样本的设备和方法,使用设计用于执行其他井下作业的工作柱,例如钻井,修井操作或重新进入操作。 可延伸元件抵靠地层壁延伸以获得原始地层或流体样品。 当测试工具处于待机状态时,可伸缩元件在工作串中被撤回,由工作串操作期间的其他结构受到保护。 测试装置安装在工作串上的滑动,不旋转的套筒上。