利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

84 条记录 (耗时 0.022 秒)

    Ultrasonic flow sensor for detecting a flow of a fluid medium
    3.
    发明授权
    Ultrasonic flow sensor for detecting a flow of a fluid medium 有权
    用于检测流体介质流动的超声波流量传感器

    公开(公告)号：US08794080B2

    公开(公告)日：2014-08-05

    申请号：US13501393

    申请日：2010-08-18

    申请人： Roland Mueller ,  Gerhard Hueftle ,  Michael Horstbrink ,  Tobias Lang ,  Sami Radwan ,  Bernd Kuenzl ,  Roland Wanja

    发明人： Roland Mueller ,  Gerhard Hueftle ,  Michael Horstbrink ,  Tobias Lang ,  Sami Radwan ,  Bernd Kuenzl ,  Roland Wanja

    IPC分类号： G01F1/66

    CPC分类号： G01F1/662 ,  G01F1/667

    摘要： An ultrasonic flow sensor for detecting a flow of a fluid medium in a flow tube includes at least one first ultrasonic transducer, at least one second ultrasonic transducer, and at least one waveguide configured to conduct ultrasonic waves between the at least one first ultrasonic transducer and the at least one second ultrasonic transducer by reflection on walls of the waveguide, and to enable the fluid medium to flow through. The ultrasonic waves are able to propagate between the first ultrasonic transducer and the second ultrasonic transducer on at least two ultrasonic paths. Sound energies of the ultrasonic waves transmitted on the at least two different ultrasonic paths differ from one another by no more than a factor of 100.

    摘要翻译： 用于检测流管中的流体介质的流动的超声波流量传感器包括至少一个第一超声波换能器，至少一个第二超声波换能器和至少一个波导，所述至少一个波导被配置为在所述至少一个第一超声波换能器和 所述至少一个第二超声波换能器通过在所述波导的壁上的反射，并且使得所述流体介质能够流过。 超声波能够在至少两个超声波路径上在第一超声换能器和第二超声换能器之间传播。 在至少两个不同的超声波路径上传输的超声波的声能彼此不同，不超过100。

    Determination of a reception time of an ultrasonic signal by means of pulse shape detection
    4.
    发明授权
    Determination of a reception time of an ultrasonic signal by means of pulse shape detection 失效
    通过脉冲形状检测确定超声波信号的接收时间

    公开(公告)号：US08744785B2

    公开(公告)日：2014-06-03

    申请号：US10591897

    申请日：2005-04-21

    申请人： Tobias Lang

    发明人： Tobias Lang

    IPC分类号： G01F1/00

    CPC分类号： G01F1/66

    摘要： The present invention relates to an ultrasonic flow sensor equipped with at least one ultrasonic transducer (A, B) for transmitting and receiving ultrasonic signals (A0, B0) and one receiver unit (4) that is connected to the ultrasonic transducer (A, B) and detects a zero crossing (N) of the ultrasonic signal (A0, B0) as a reception time after the ultrasonic signal (A0, B0) has exceeded a predetermined threshold (SW). The measurement precision of the sensor can be significantly improved if the receiver unit (4) determines the time of a value characteristic of the ultrasonic signal (A0, B0) and determines the relative time shift (deltat) of the characteristic value (Ampmax, Ts) in relation to the zero crossing (N0, N1) that is detected as the reception time (t0).

    摘要翻译： 超声波流量传感器技术领域本发明涉及一种超声波流量传感器，其配备有至少一个用于发送和接收超声波信号（A0，B0）的超声波换能器（A，B）和连接到超声波换能器（A，B）的一个接收器单元 ），并且检测超声波信号（A0，B0）的过零点（N）作为超声波信号（A0，B0）超过预定阈值（SW）之后的接收时间。 如果接收器单元（4）确定超声信号（A0，B0）的值特性的时间并且确定特征值的相对时间偏移（Δtpm），则可以显着提高传感器的测量精度（Ampmax，Ts ）相对于被检测为接收时间（t0）的过零点（N0，N1）。

    Method for testing the operation of a heating element used for an activated carbon filter
    5.
    发明授权
    Method for testing the operation of a heating element used for an activated carbon filter 有权
    用于活性炭过滤器的加热元件的操作的测试方法

    公开(公告)号：US08598496B2

    公开(公告)日：2013-12-03

    申请号：US12573368

    申请日：2009-10-05

    申请人： Heiko Freter ,  Tobias Lang

    发明人： Heiko Freter ,  Tobias Lang

    IPC分类号： H05B3/02 ,  G01R31/08 ,  G01R27/08 ,  G01R31/00 ,  G01R25/00 ,  H03D13/00

    CPC分类号： G01N27/041 ,  G01N27/045

    摘要： The invention relates to a method for testing the operation of an electric heating element which is used for heating activated carbon of an activated carbon filter and/or air which is guided through the activated carbon for the regeneration thereof. The heating element has a PTC-characteristic (positive temperature coefficient characteristic). The strength of a current flow through the heating element in a heating phase selected for the operational testing is measured at a point in time or over a time period and is used for the operational testing, in that at least one measured current flow value is compared with a corresponding current flow value to be anticipated during defect-free operation of the heating element, and the heating element is considered to be defective in the event of a deviation which exceeds a predetermined measurement.

    摘要翻译： 本发明涉及一种电加热元件的操作方法，该电加热元件用于加热通过活性炭引导的活性炭过滤器和/或空气的活性炭再生。 加热元件具有PTC特性（正温度系数特性）。 在选择用于操作测试的加热阶段中通过加热元件的电流的强度在一个时间点或一段时间内被测量，并且用于操作测试，因为至少一个测量的电流流量值被比较 具有在加热元件的无缺陷操作期间预期的相应的电流流量值，并且在超过预定测量的偏差的情况下认为加热元件是有缺陷的。

    Ultrasonic transducer for use in a fluid medium
    6.
    发明授权
    Ultrasonic transducer for use in a fluid medium 失效
    用于流体介质的超声换能器

    公开(公告)号：US08596139B2

    公开(公告)日：2013-12-03

    申请号：US13141963

    申请日：2009-11-17

    申请人： Roland Mueller ,  Gerhard Hueftle ,  Michael Horstbrink ,  Tobias Lang ,  Sami Radwan ,  Bernd Kuenzl ,  Roland Wanja

    发明人： Roland Mueller ,  Gerhard Hueftle ,  Michael Horstbrink ,  Tobias Lang ,  Sami Radwan ,  Bernd Kuenzl ,  Roland Wanja

    IPC分类号： G01F1/20

    CPC分类号： G01P5/24 ,  B06B1/0655 ,  G01F1/662 ,  G10K9/22 ,  G10K11/004

    摘要： An ultrasonic transducer is described for use in a fluid medium. The ultrasonic transducer includes at least one piezoelectric transducer element and at least one matching element for promoting an oscillation injection between the piezoelectric transducer element and the fluid medium. The ultrasonic transducer also includes a housing (112), the piezoelectric transducer element being inserted in the housing. The housing has at least one opening facing the fluid medium, the matching element being inserted at least partially into the opening. The ultrasonic transducer also has at least one sealing element, which seals at least one intervening space between the matching element and the housing in such a way that an inner space of the housing is at least largely sealed from the fluid medium.

    摘要翻译： 描述了用于流体介质中的超声换能器。 超声波换能器包括至少一个压电换能器元件和至少一个匹配元件，用于促进压电换能器元件和流体介质之间的振荡注入。 超声换能器还包括壳体（112），压电换能器元件插入壳体中。 壳体具有面向流体介质的至少一个开口，匹配元件至少部分地插入到开口中。 超声换能器还具有至少一个密封元件，其密封匹配元件和壳体之间的至少一个中间空间，使得壳体的内部空间至少与流体介质密封很大。

    Fuel vapor storage and recovery apparatus
    8.
    发明授权
    Fuel vapor storage and recovery apparatus 有权
    燃油蒸汽储存和回收装置

    公开(公告)号：US08297262B2

    公开(公告)日：2012-10-30

    申请号：US12964107

    申请日：2010-12-09

    申请人： Tobias Lang ,  Piers Catton ,  Ulrich Karsch ,  Tho Truong Huynh

    发明人： Tobias Lang ,  Piers Catton ,  Ulrich Karsch ,  Tho Truong Huynh

    IPC分类号： F02M33/02

    CPC分类号： F02M25/0854 ,  B01D53/0407 ,  B01D2259/4516 ,  B60K15/03504 ,  B60K2015/03514 ,  H03C3/0925 ,  H03C3/0958 ,  H04B1/0483 ,  H04L27/361

    摘要： A fuel vapor storage and recovery apparatus includes a fuel vapor storage canister, said fuel vapor storage canister comprising at least first and second vapor storage compartments filled with an absorbent material, for instance filled with activated carbon, at least a vapor inlet port, an atmospheric vent port and a purge port. Said fuel vapor storage canister defines an air flow path between said vapor inlet port and said atmospheric vent port during shut-off of the internal combustion engine of the vehicle. During purging cycles there is defined an air flow path between said atmospheric vent port and said purge port wherein said first and second vapor storage compartments are arranged in concentric relationship and wherein said first and second vapor storage compartments in flow direction are separated from each other by an air gap diffusion barrier.

    摘要翻译： 燃料蒸气存储和回收装置包括燃料蒸气存储罐，所述燃料蒸气存储罐包括至少第一和第二蒸气存储室，其填充有吸收材料，例如填充有活性炭，至少蒸气入口，大气 排气口和净化口。 所述燃料蒸汽储存罐在车辆的内燃机关闭期间限定了在所述蒸汽入口和所述大气排放口之间的空气流动路径。 在净化循环期间，限定了所述大气排放口和所述吹扫口之间的空气流动路径，其中所述第一和第二蒸气存储室以同心的关系布置，并且其中流动方向上的所述第一和第二蒸气存储隔间彼此分开， 气隙扩散屏障。

    Method for Testing the Operation of a Heating Element Used for an Activated Carbon Filter
    10.
    发明申请
    Method for Testing the Operation of a Heating Element Used for an Activated Carbon Filter 有权
    用于活性炭过滤器的加热元件的操作测试方法

    公开(公告)号：US20110080159A1

    公开(公告)日：2011-04-07

    申请号：US12573368

    申请日：2009-10-05

    申请人： Heiko Freter ,  Tobias Lang

    发明人： Heiko Freter ,  Tobias Lang

    IPC分类号： G01R25/00

    CPC分类号： G01N27/041 ,  G01N27/045

    摘要： The invention relates to a method for testing the operation of an electric heating element which is used for heating activated carbon of an activated carbon filter and/or air which is guided through the activated carbon for the regeneration thereof. The heating element has a PTC-characteristic (positive temperature coefficient characteristic). The strength of a current flow through the heating element in a heating phase selected for the operational testing is measured at a point in time or over a time period and is used for the operational testing, in that at least one measured current flow value is compared with a corresponding current flow value to be anticipated during defect-free operation of the heating element, and the heating element is considered to be defective in the event of a deviation which exceeds a predetermined measurement.A further method in accordance with the invention corresponds to the first-named method, but with the difference that an electric resistor which is not the heating element has a PTC-characteristic. The PTC-resistor is electrically connected to the heating element such that the current flowing through the heating element also flows through the PTC-resistor. The PTC-resistor is disposed in spatial terms adjacent to the heating element in such a manner that the heating element also heats the PTC-resistor.A further method in accordance with the invention corresponds to the second-named method, but with the difference that in any event the heating element serves to heat an air flow provided for the regeneration of the activated carbon and the PTC-resistor is disposed in a spatial relationship with respect to the heating element such that the PTC-resistor is heated by virtue of the fact that the regeneration air flow heats the PTC-resistor.

    摘要翻译： 本发明涉及一种电加热元件的操作方法，该电加热元件用于加热通过活性炭引导的活性炭过滤器和/或空气的活性炭再生。 加热元件具有PTC特性（正温度系数特性）。 在选择用于操作测试的加热阶段中通过加热元件的电流的强度在一个时间点或一段时间内被测量，并且用于操作测试，因为至少一个测量的电流流量值被比较 具有在加热元件的无缺陷操作期间预期的相应的电流流量值，并且在超过预定测量的偏差的情况下认为加热元件是有缺陷的。 根据本发明的另一种方法对应于第一种方法，但不同之处在于不是加热元件的电阻器具有PTC特性。 PTC电阻器电连接到加热元件，使得流过加热元件的电流也流过PTC电阻器。 PTC电阻器以与加热元件相邻的空间方式设置，使得加热元件也加热PTC电阻器。 根据本发明的另一种方法对应于第二种方法，但是不同之处在于，无论如何，加热元件用于加热为活性炭的再生提供的空气流，并且PTC电阻器设置在 相对于加热元件的空间关系，使得PTC电阻器由于再生空气流加热PTC电阻器而被加热。