公开(公告)号：US20070162239A1

公开(公告)日：2007-07-12

申请号：US10587685

申请日：2005-01-19

申请人： Tobias Lang

发明人： Tobias Lang

IPC分类号： G01F1/66

CPC分类号： G01F1/667 ,  G01P5/247

摘要： The invention relates to an ultrasonic flow sensor, particularly for measuring a volume flow or mass flow of a fluid (1), which includes two ultrasonic converters (A,B) that are offset in the direction of flow (2) and each transmit a periodic ultrasonic signal (S1,S2) to the other ultrasonic converter (B,A), and a control and evaluation unit (4) that detects several reception times (ti′,ti″) per ultrasonic signal (S1,S2) when an ultrasonic signal (S1,S2) is received by an ultrasonic converter (B,A), a measured quantity (S) being determined from one of the reception times (ti′,ti″). The accuracy of the measurement can be improved substantially when the control and evaluation unit (4) includes at least two counters (5a,5b), the first counter counting a period (Δt′) from a first switchover/reception time (t1′) of a signal (S2,P) at least until the first reception time (t1″) of the ultrasonic signal (S1), and the second counter determining the time interval (Δt″) between a first instant and a second instant out of several paired instants (ti′,ti″) of the signals (S1,S2,P).

摘要翻译： 本发明涉及一种超声波流量传感器，特别是用于测量流体（1）的体积流量或质量流量，该流体包括在流动方向（2）上偏移的两个超声波转换器（A，B） 周期性超声波信号（S 1，S 2）到另一个超声波变换器（B，A），以及控制和评估单元（4），其检测几个接收时间（t 1， 当超声波转换器（B，A）接收到超声波信号（S 1，S 2）时，超声波信号（S 1，S 2） 从其中一个接收时间（t i i i，i i，t i i i i）。 当控制和评估单元（4）包括至少两个计数器（5a，5b）时，可以基本上改进测量的精度，第一计数器从第一切换/接收时间（t）计数周期（Deltat'） 至少直到超声波信号（S1）的第一接收时间（t 1“）为止的信号（S 2，P）的信号（S 1，S 1） 第二计数器确定在几个配对时刻（t i，i，t i，i i“）中的第一时刻和第二时刻之间的时间间隔（Deltat”） 信号（S 1，S 2，P）。

公开(公告)号：US20050217357A1

公开(公告)日：2005-10-06

申请号：US10511839

申请日：2003-04-09

申请人： Thomas Lenzing ,  Hans Beyrich ,  Roland Mueller ,  Uwe Konzelmann ,  Tobias Lang ,  Henning Marberg

发明人： Thomas Lenzing ,  Hans Beyrich ,  Roland Mueller ,  Uwe Konzelmann ,  Tobias Lang ,  Henning Marberg

IPC分类号： G01F1/684 ,  G01P5/00

CPC分类号： G01F1/6842

摘要： A device for determining at least one parameter of a medium flowing in a line, particularly the intake air mass of an internal combustion engine, having one part which has at least one measuring channel for conducting at least one partial flow of the medium flowing in the line in a main flow direction and which can be inserted into the line with a predetermined alignment with respect to the main flow direction, and having at least one measuring element situated in the measuring channel for determining the at least one parameter. In the part, a channel structure is formed, having an input region for the entry of a partial flow of the medium and having a measuring channel branching off from the input region. The input region has a separation zone with a separation opening, and at least two projections which protrude from mutually opposite interior walls of the input region into the input region.

摘要翻译： 一种用于确定在一条管线中流动的介质，特别是内燃机的进气质量的至少一个参数的装置，该装置具有一部分，该部分具有至少一个测量通道，用于使至少一个在 在主流动方向上行，并且可以相对于主流动方向以预定的对准方式插入到管线中，并且具有位于测量通道中的至少一个测量元件，用于确定至少一个参数。 在该部分中，形成通道结构，其具有用于输入介质的部分流的输入区域，并具有从输入区域分支的测量通道。 输入区域具有带有分隔开口的分隔区和从输入区域的相互相对的内壁突出到输入区域中的至少两个突起。

公开(公告)号：US20050000281A1

公开(公告)日：2005-01-06

申请号：US10840034

申请日：2004-05-04

申请人： Uwe Konzelmann ,  Tobias Lang

发明人： Uwe Konzelmann ,  Tobias Lang

IPC分类号： F02D35/00 ,  F02D45/00 ,  G01F1/684 ,  G01F1/699 ,  G01F1/68

CPC分类号： G01F1/699 ,  G01F1/6845

摘要： A flow sensor in which all bridge resistor elements of a bridge circuit are arranged on a chip together with a heating resistor element, so that the drift of the bridge resistor elements will then have only a very slight effect on the output signal of the bridge circuit, which may be picked off at the electrical connections.

摘要翻译： 一个流量传感器，其中桥式电路的所有桥式电阻元件与加热电阻元件一起布置在芯片上，使得桥式电阻元件的漂移对桥式电路的输出信号将产生非常轻微的影响 ，其可以在电连接处被拾取。

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）。

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。

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。

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。

公开(公告)号：US07900607B2

公开(公告)日：2011-03-08

申请号：US12341673

申请日：2008-12-22

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与所述净化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，并且其中所述第一和第二蒸气储存室在流动方向上彼此分开， 气隙扩散屏障。

公开(公告)号：US07500403B2

公开(公告)日：2009-03-10

申请号：US10583903

申请日：2004-11-19

申请人： Uwe Konzelmann ,  Tobias Lang

发明人： Uwe Konzelmann ,  Tobias Lang

IPC分类号： G01F1/84

CPC分类号： G01F1/665

摘要： An ultrasonic flow sensor for measuring the volumetric flow rate of a flowing medium through a flow channel having a transducer array which is situated within the flow cross section of the flow channel and which generates ultrasonic waves which propagate in the flow cross section of the flow channel transversally to a flow direction of the flowing medium, the ultrasonic transducer array having an interlaid arrangement of transducer elements which act alternately as transmitting and receiving antennas, so that all emitted individual sound waves interfere to form common wave fronts.

摘要翻译： 一种超声波流量传感器，用于通过具有位于流动通道的流动横截面内的换能器阵列的流动通道来测量流动介质的体积流量，并且产生在流动通道的流动横截面中传播的超声波 横向于流动介质的流动方向，超声波换能器阵列具有交替地作为发射和接收天线作用的换能器元件的插入布置，使得所有发射的独立声波干扰形成共同波阵面。

公开(公告)号：US07252015B2

公开(公告)日：2007-08-07

申请号：US11304181

申请日：2005-12-14

申请人： Uwe Konzelmann ,  Tobias Lang ,  Christoph Gmelin ,  Sami Radwan

发明人： Uwe Konzelmann ,  Tobias Lang ,  Christoph Gmelin ,  Sami Radwan

IPC分类号： G01F1/66

CPC分类号： G01F5/00 ,  G01F1/662 ,  G01F1/667

摘要： The measurement of volume flows or mass flows in the intake system of motor vehicle internal combustion engines plays a significant role in reducing pollutant emissions. Therefore, an ultrasonic flow meter for measuring a flow rate of a fluid flowing in a primary flow direction is described. The ultrasonic flow meter has at least two ultrasonic transducers, the ultrasonic transducers being capable of emitting and/or receiving ultrasonic waves at an angle α to the primary flow direction which is different from 90°. Furthermore, the ultrasonic flow meter has at least one guide element which is entirely or partially situated in the fluid. This guide element diverts at least one part of the flowing fluid in such a way that in the diversion, a velocity component is transferred to at least one part of the flowing fluid perpendicular to the primary flow direction. Guide vanes or displacers in particular are described as guide elements. In addition, turbulators may be provided on the guide elements, the turbulators generating a longitudinal fluid bed along the guide elements and thus causing the flow of the fluid to have a better contact with the guide elements when flowing around them. This reduces turbulences within the ultrasonic flow meter. Compared to the devices known from the related art, the ultrasonic flow meters described are distinguished by an improved signal-to-noise ratio and accordingly by a higher measuring precision.

摘要翻译： 机动车内燃机进气系统的体积流量或质量流量的测量在减少污染物排放方面起着重要的作用。 因此，描述了用于测量在主流动方向上流动的流体的流量的超声波流量计。 超声波流量计具有至少两个超声波换能器，超声换能器能够以与90°不同的一次流动方向的角度α发射和/或接收超声波。 此外，超声波流量计具有至少一个完全或部分位于流体中的引导元件。 该引导元件以这样一种方式使流动流体的至少一部分转向，即在转向中，速度分量被传递到垂直于主流动方向的流动流体的至少一部分。 导向叶片或置换器特别被描述为导向元件。 此外，可以在引导元件上设置紊流器，所述湍流器沿着引导元件产生纵向流体床，并且因此当流体流动时，使流体流动与引导元件更好地接触。 这可以减少超声波流量计内的湍流。 与现有技术中已知的装置相比，所描述的超声波流量计通过提高的信噪比并因此通过更高的测量精度来区分。