Device for measuring the mass of a flowing medium
    1.
    发明授权
    Device for measuring the mass of a flowing medium 失效
    用于测量流动介质质量的装置

    公开(公告)号:US5918279A

    公开(公告)日:1999-06-29

    申请号:US964627

    申请日:1997-11-05

    CPC分类号: G01F15/00 G01F1/6842 G01F5/00

    摘要: A device for measuring the mass of a flowing medium, or flow rate meters, having a measuring element accommodated in a measurement support; upstream of the measuring element, a grid with flow openings is provided. To attain a substantially rotational symmetrical velocity distribution even in the case of a severely impeded oncoming flow, the grid has flow openings, which at least regionally have a different flow cross section. The flow cross sections of the flow openings are adapted to the oncoming flow, in order to bring about a flow with substantially even velocity distribution downstream of the grid. The device is intended for measuring the mass of a flowing medium, in particular for measuring the mass of aspirated air in internal combustion engines.

    摘要翻译: 一种用于测量容纳在测量支架中的测量元件的流动介质或流量计的质量的装置; 在测量元件的上游设置有具有流动开口的格栅。 为了即使在严重阻碍的迎面流动的情况下也获得基本上旋转对称的速度分布,网格具有至少在区域上具有不同流动横截面的流动开口。 流动开口的流动横截面适于迎面而来的流动,以便在网格下游带来基本均匀的速度分布的流动。 该装置旨在测量流动介质的质量,特别是用于测量内燃机中吸入空气的质量。

    Device for measuring the mass of a flowing medium
    2.
    发明授权
    Device for measuring the mass of a flowing medium 失效
    用于测量流动介质质量的装置

    公开(公告)号:US5712425A

    公开(公告)日:1998-01-27

    申请号:US682599

    申请日:1996-08-26

    CPC分类号: G01F5/00 G01F1/684 G01F1/6842

    摘要: A device for measuring the mass of a flowing medium by use of a temperature-dependent measuring resistor bathed by the flowing medium and accommodated in a measuring channel. The device has a flow obstacle, embodied in the form of a trip edge, upstream of the measuring element in the region of an inlet opening of the measuring channel, so as to create a chronologically and spatially stable separation zone in the region of the trip edge, thereby preventing chronologically and spatially unstable separation zones and makes it possible to attain a reduction in measuring signal noise. The invention is contemplated for measuring the mass of a flowing medium, especially for measuring the aspirated air mass in internal combustion engines.

    摘要翻译: PCT No.PCT / DE95 / 01477 Sec。 371日期:1996年8月26日 102(e)日期1996年8月26日PCT提交1995年10月24日PCT公布。 公开号WO96 / 16317 日期:1996年5月30日一种用于通过流动介质沐浴并容纳在测量通道中的温度依赖测量电阻来测量流动介质的质量的装置。 该装置具有流动障碍物,其以测量通道的入口开口的区域中的跳脱边缘的形式体现在测量元件的上游,以便在跳闸区域中产生按时间顺序和空间上稳定的分离区域 从而防止了时间顺序和空间上不稳定的分离区,并且可以实现测量信号噪声的降低。 本发明考虑用于测量流动介质的质量,特别是用于测量内燃机中吸入的空气质量。

    Method for correcting the output signal of an air mass meter
    4.
    发明授权
    Method for correcting the output signal of an air mass meter 失效
    用于校正空气质量计的输出信号的方法

    公开(公告)号:US5668313A

    公开(公告)日:1997-09-16

    申请号:US553469

    申请日:1995-11-10

    摘要: In a method for correcting an output signal of an air mass meter, an air mass aspirated by an internal combustion engine is detected, so that first a characteristic of the air mass meter representing a relationship between an output voltage of the air mass meter and a flow air mass is determined, the characteristic in a region which the air mass can flow back is corrected by changing the characteristic in a return flow region relative to the measured characteristic, the change of the characteristic is performed so that the relationship between the output voltage of the air mass meter and the measured air mass is adjusted to minimize error measurements, and the computations of the aspirated air mass is therefore performed with the aid of the corrected characteristic.

    摘要翻译: PCT No.PCT / DE95 / 00411 Sec。 371日期:1995年11月10日 102(e)日期1995年11月10日PCT 1995年3月27日PCT PCT。 WO95 / 26493 PCT出版物 日期1995年10月5日在一种用于校正空气质量计的输出信号的方法中,检测到由内燃机吸入的空气质量,首先,表示空气质量计的特性,其表示 空气质量计和流量空气质量,通过改变返回流动区域中相对于测量特性的特性来校正空气质量可以流回的区域中的特性,执行特性的改变,使得 空气质量计的输出电压与被测量的空气质量之间的关系被调整以使误差测量最小化,因此借助校正特性来执行抽吸空气质量的计算。

    Device for measuring at least one parameter of a flowing medium
    5.
    发明授权
    Device for measuring at least one parameter of a flowing medium 有权
    用于测量流动介质的至少一个参数的装置

    公开(公告)号:US06647775B1

    公开(公告)日:2003-11-18

    申请号:US09831153

    申请日:2001-10-19

    IPC分类号: G01F168

    CPC分类号: G01F1/6842

    摘要: In devices for measuring the mass of aspirated air of an internal combustion engine, for instance, via a line, it is already known to provide a tubular body inside this line and to provide a temperature-dependent measuring element inside the tubular body. In order that dirt particles and liquid droplets entrained by the aspirated air will be kept away from the measuring element, in accordance with the invention, a protective screen is disposed inside the tubular body, upstream of the measuring element; the screen extends in inclined fashion in the flow direction, and dirt particles and liquid droplets are deposited on it and carried to a downstream end of the protective screen, so that via an outflow opening they can reach the inner conduit wall of the tubular body and be made to bypass the measuring element.

    摘要翻译: 在用于测量内燃机的吸入空气质量的装置中,例如通过管线,已知在该管线内部提供管状体并且在管状体内提供温度依赖的测量元件。 为了使被吸入的空气夹带的污物颗粒和液滴将远离测量元件,根据本发明,在测量元件上游的管状体内部设有防护屏, 屏幕在流动方向上倾斜地延伸,并且污垢颗粒和液滴沉积在其上并被运送到保护屏的下游端,使得经由流出开口,它们可以到达管状体的内导管壁,并且 绕过测量元件。

    Device for measuring the mass of a flowing medium
    6.
    发明授权
    Device for measuring the mass of a flowing medium 失效
    用于测量流动介质质量的装置

    公开(公告)号:US06176131B1

    公开(公告)日:2001-01-23

    申请号:US09169946

    申请日:1998-10-13

    IPC分类号: G01F168

    CPC分类号: G01F1/684 G01F1/6845

    摘要: Known sensor supports have a recess in which a sensor element is glued by means of an adhesive. The device according to the invention has a plate-shaped sensor element that is accommodated in a recess of a sensor support. A sensor region (3) has at least one measurement resistor, which region is exposed to the flowing medium wherein a gap remains between the sensor element and the recess. To protect an evaluation circuit connected to the sensor element against moisture, the provision is made, according to the invention, that at least partial regions of the evaluation circuit and partial regions of the sensor element are covered by a protective coating, wherein the gap has at least one enlargement by means of which the flow of the protective coating can be influenced. The device according to the invention is used for measuring the mass of a flowing medium in the intake air mass of internal combustion engines.

    摘要翻译: 已知的传感器支架具有凹部,传感器元件借助于粘合剂粘合在该凹部中。 根据本发明的装置具有容纳在传感器支撑件的凹部中的板状传感器元件。 传感器区域(3)具有至少一个测量电阻器,该区域暴露于流动介质中,其中间隙保留在传感器元件和凹部之间。 为了保护连接到传感器元件的评估电路免受潮湿的影响,根据本发明,提供评估电路的至少部分区域和传感器元件的部分区域被保护涂层覆盖,其中间隙具有 可以影响保护涂层的流动的至少一个放大图。 根据本发明的装置用于测量内燃机的进气体中的流动介质的质量。

    Sensor system for determining a parameter of a fluid medium
    7.
    发明授权
    Sensor system for determining a parameter of a fluid medium 有权
    用于确定流体介质参数的传感器系统

    公开(公告)号:US08607624B2

    公开(公告)日:2013-12-17

    申请号:US13119100

    申请日:2009-08-13

    IPC分类号: G01M15/04

    CPC分类号: G01F1/6842 G01F15/12

    摘要: A sensor system for determining at least one parameter of a fluid medium flowing through a channel, in particular of an intake air mass of an internal combustion engine. The sensor system has at least one sensor chip situated in the channel for determining the parameter of the fluid medium. The sensor chip is accommodated in a sensor carrier that extends into the channel. The sensor carrier has an inflow edge situated transversely to the flow of the fluid medium, which on its part has at least one turbolator, which is equipped to develop turbulences in the flowing fluid medium in the area of the sensor carrier.

    摘要翻译: 一种传感器系统,用于确定流过通道的流体介质的至少一个参数,特别是内燃机的进气体。 传感器系统具有位于通道中的至少一个传感器芯片,用于确定流体介质的参数。 传感器芯片容纳在延伸到通道中的传感器载体中。 传感器载体具有横向于流体介质的流动的流入边缘,该流体介质在其部分上具有至少一个涡轮机,该涡轮机装备成在传感器载体的区域中在流动的流体介质中形成湍流。

    SENSOR SYSTEM FOR DETERMINING A PARAMETER OF A FLUID MEDIUM
    8.
    发明申请
    SENSOR SYSTEM FOR DETERMINING A PARAMETER OF A FLUID MEDIUM 有权
    用于确定流体介质参数的传感器系统

    公开(公告)号:US20120048005A1

    公开(公告)日:2012-03-01

    申请号:US13119100

    申请日:2009-08-13

    IPC分类号: G01M15/04

    CPC分类号: G01F1/6842 G01F15/12

    摘要: A sensor system for determining at least one parameter of a fluid medium flowing through a channel, in particular of an intake air mass of an internal combustion engine. The sensor system has at least one sensor chip situated in the channel for determining the parameter of the fluid medium. The sensor chip is accommodated in a sensor carrier that extends into the channel. The sensor carrier has an inflow edge situated transversely to the flow of the fluid medium, which on its part has at least one turbolator, which is equipped to develop turbulences in the flowing fluid medium in the area of the sensor carrier.

    摘要翻译: 一种传感器系统,用于确定流过通道的流体介质的至少一个参数,特别是内燃机的进气体。 传感器系统具有位于通道中的至少一个传感器芯片,用于确定流体介质的参数。 传感器芯片容纳在延伸到通道中的传感器载体中。 传感器载体具有横向于流体介质的流动的流入边缘,该流体介质在其部分上具有至少一个涡轮机,该涡轮机装备成在传感器载体的区域中在流动的流体介质中形成湍流。

    Ultrasonic Flow Rate Meter Having a Pressure Sensor
    9.
    发明申请
    Ultrasonic Flow Rate Meter Having a Pressure Sensor 失效
    超声波流量计有压力传感器

    公开(公告)号:US20080271543A1

    公开(公告)日:2008-11-06

    申请号:US11793666

    申请日:2005-08-26

    IPC分类号: G01F1/66

    CPC分类号: G01F5/00 G01F1/662 G01F15/18

    摘要: An ultrasonic flow rate meter and a method for measuring the flow rate with the aid of ultrasound are described, having at least two ultrasonic transducers situated offset in a flow channel in the flow direction for transmitting and receiving ultrasound wave packets, so that ultrasound propagation times from one of the ultrasonic transducers to the other, and vice-versa, can be determined in an electronic part, and having a pressure sensor associated with the flow channel for determining the pressure in the flow channel. Measured values for an engine control that is as accurate as possible are determinable by accurately detecting the incoming air in the intake of a motor vehicle internal combustion engine.

    摘要翻译: 描述了一种超声波流量计和一种借助于超声波测量流量的方法,该超声波流量计具有至少两个在流动方向上偏移的超声波换能器,用于发送和接收超声波分组,从而超声传播时间 从一个超声波换能器到另一个,反之亦然,可以在电子部件中确定,并且具有与用于确定流动通道中的压力的​​流动通道相关联的压力传感器。 通过准确地检测机动车内燃机的进气中的进入空气,可以确定尽可能准确的发动机控制的测量值。

    Method for cleaning of a measuring element passed over by a gas flow
    10.
    发明授权
    Method for cleaning of a measuring element passed over by a gas flow 失效
    清洁由气流过去的测量元件的方法

    公开(公告)号:US06964710B2

    公开(公告)日:2005-11-15

    申请号:US10606329

    申请日:2003-06-25

    CPC分类号: G01F1/6986 G01F1/6845

    摘要: A method for cleaning of a measuring element (1) passed over by a gas flow is arranged on a thin-walled membranous material (5). The measuring element (1) includes at least one heatable element (6, 7, 8; 10, 11), which is arranged on the membranous material, the membranous material being capable of vibrating. By means of a control apparatus (20) or a switching (22) associated with the measuring element, a periodic delivery of current (41, 42) in intervals takes place in this manner to at least one heatable element (6, 7, 8; 10, 11) of the measuring element (1) and thereby produces vibrations. Alternatively, vibrations of the membranous material (5) can be produced by special vibration exciters or by means of ultrasonic coupling.

    摘要翻译: 用于清洁由气流流过的测量元件(1)的方法设置在薄壁膜材料(5)上。 测量元件(1)包括至少一个布置在膜材料上的可加热元件(6,7,8,10,11),所述膜材料能够振动。 通过与测量元件相关联的控制装置(20)或开关(22),电流(41,42)的间隔周期性地以这种方式发生到至少一个可加热元件(6,7,8 ; 10,11),从而产生振动。 或者,膜材料(5)的振动可以通过特殊的振动激励器或通过超声波耦合来产生。