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    • 1. 发明授权
    • Apparatus for measuring air quantity
    • 空气量测量装置
    • US4688424A
    • 1987-08-25
    • US804153
    • 1985-12-03
    • Dieter HandtmannUlrich Kuhn
    • Dieter HandtmannUlrich Kuhn
    • G01F1/68G01F1/684G01F1/692G01F1/698G01F1/699
    • G01F1/699G01F1/684G01F1/692G01F1/698
    • An apparatus for measuring the rate of flow of a fluid such as for measuring the quantities of intake air of internal combustion engines. The apparatus includes a first conductive film and a second conductive film applied to a substrate and which are in thermal contact with one another and are introduced into the flowing medium. The apparatus includes a resistance-measuring arrangement connected to a control function to form a closed loop. The resistance value of the first film is sensed by the resistance-measuring arrangement and, by applying energy, the control function regulates the first film to a temperature dependent on at least the quantity of air flowing past. This apparatus further provides that the output quantity of the control function is applied to the second conductive film, that both conductive films have at least approximately the same sheet resistance, and that their geometry is adapted to each other so that the second film is controlled to at least approximately the temperature of the first film.
    • 一种用于测量流体的流量的装置,例如用于测量内燃机的进气量。 该装置包括第一导电膜和第二导电膜,该第一导电膜和第二导电膜被施加到基底并彼此热接触并被引入到流动介质中。 该装置包括连接到控制功能以形成闭环的电阻测量装置。 通过电阻测量装置感测第一膜的电阻值,并且通过施加能量,控制功能将第一膜调节至至少取决于流过的空气量的温度。 该装置还提供了将控制功能的输出量施加到第二导电膜,两个导电膜具有至少大致相同的薄层电阻,并且它们的几何形状彼此适配,使得第二薄膜被控制到 至少大约第一膜的温度。
    • 5. 发明授权
    • Method of making a vehicle windshield surface hydrophilic
    • 使车辆挡风玻璃表面亲水化的方法
    • US06239964B1
    • 2001-05-29
    • US09331523
    • 1999-06-22
    • Ulrich KuhnWerner Metzger-GoronzyWolfgang LeutschHans Braun
    • Ulrich KuhnWerner Metzger-GoronzyWolfgang LeutschHans Braun
    • H01T1900
    • H01T19/00B60S1/02B60S1/38B60S2001/3829
    • The method for making the surface of a window or windshield of a vehicle hydrophilic improves visibility for the operator of the vehicle during rain or fog. The method includes exposing the window or windshield surface to a corona discharge from at least one moving electrode that passes over the surface, especially at least one electrode associated with the rubber wiper blade (22) of a wiper apparatus for the window or windshield. The degree of hydrophilization of the surface is controlled by adjusting the level and/or the frequency or the duration of the high-frequency alternating current voltage applied to the moving electrode to produce the corona discharge. Alternatively the degree of hydrophilization of the surface is controlled by adjusting the spacing (a) of the at least one electrode from the surface.
    • 用于制造车辆的窗户或挡风玻璃的表面的方法亲水地改善了在雨或雾期间车辆的操作者的可视性。 该方法包括将窗户或挡风玻璃表面暴露于通过表面的至少一个移动电极的电晕放电,特别是与用于窗户或挡风玻璃的刮水器装置的橡胶刮水片(22)相关联的至少一个电极。 通过调整施加到移动电极的高频交流电压的电平和/或频率或持续时间来控制表面的亲水化程度,以产生电晕放电。 或者,通过从表面调节至少一个电极的间隔(a)来控制表面的亲水化程度。
    • 9. 发明授权
    • Apparatus for determining the flow rate of a flowing medium
    • 用于确定流动介质的流量的装置
    • US4803875A
    • 1989-02-14
    • US107149
    • 1987-10-13
    • Ulrich KuhnSybille Stumpf
    • Ulrich KuhnSybille Stumpf
    • G01P5/12G01F1/68G01F1/692
    • G01F1/692
    • An apparatus for determining the flow rate of a flowing medium having a substrate fastened at one end with a resistor arrangement disposed on the substrate which includes a layer-like measuring resistor (R.sub.S) and a layer-like heating resistor (R.sub.H). The heating output is regulated such that the measuring resistor (R.sub.S) has a constant electrical resistance, representing a flow rate of the flowing medium. By suitable provisions, such as a meandering pattern for the heating resistor (R.sub.H), the local resistance of the heating resistor (R.sub.H) crosswise to the flow direction is made to decrease toward the fastened end. Thus, the temperature generated by means of the heating resistor (R.sub.H) inside the substrate and the measuring resistor (R.sub.S) decreases toward the fastened end.
    • 一种用于确定流动介质的流量的装置,其具有在一端固定的基板,该基板设置在包括层状测量电阻器(RS)和层状加热电阻器(RH)的基板上。 加热输出被调节,使得测量电阻(RS)具有恒定的电阻,表示流动介质的流速。 通过适当的规定,例如加热电阻器(RH)的曲折图案,使得与流动方向交叉的加热电阻器(RH)的局部电阻朝向紧固端减小。 因此,通过衬底内部的加热电阻器(RH)产生的温度和测量电阻器(RS)朝向紧固端部减小。
    • 10. 发明授权
    • Method and apparatus for measuring the mass of a flowing medium
    • 用于测量流动介质质量的方法和装置
    • US4715224A
    • 1987-12-29
    • US822519
    • 1986-01-27
    • Ulrich Kuhn
    • Ulrich Kuhn
    • G01F1/68G01F1/684G01F1/692G01F1/698G01F1/699
    • G01F1/699G01F1/684G01F1/692G01F1/698
    • A device which serves to measure the mass of a flowing medium, in particular the mass of the air aspirated by an internal combustion engine. The device includes a substrate on the bottom and top of which there is disposed a respective temperature-dependent resistor electrically connected in parallel and preferably embodied as a film, on both sides of which at peripheral areas low-impedance electrical conductor tracks are provided. The peripheral areas of the substrate are partially encompassed by U-shaped deformations provided on metallic retainers. The retainers simultaneously serve as electrical connections via soldered areas provided between the U-shaped deformations and the conductor tracks. The retainers protrude into the flow of the medium and have good thermal conductivity, so that they are virtually at the temperature of the flowing medium, and hence the temperature of the peripheral areas is also kept at the temperature of the flowing medium. To reinforce this effect, additional thermal conduction surfaces on the retainers or further thermal conduction elements which have good thermal conductivity, can be provided. With the temperatures of the peripheral areas kept to the temperature of the flow of the medium, short startup and response times are provided by the device even when there are sudden major changes in the mass of the flowing medium.
    • 用于测量流动介质的质量的装置,特别是由内燃机吸入的空气的质量。 该装置包括底部和底部的衬底,其上设置有并联电连接并且优选地实施为膜的相应的温度依赖性电阻器,其两侧设置有低阻抗电导体轨道。 衬底的周边部分被设置在金属保持器上的U形变形部分地包围。 保持器同时用作通过设置在U形变形和导体轨道之间的焊接区域的电连接。 保持器突出到介质的流动中并且具有良好的导热性,使得它们实际上处于流动介质的温度,因此周边区域的温度也保持在流动介质的温度。 为了增强这种效果,可以提供保持器上的额外的热传导表面或具有良好导热性的其他导热元件。 由于周边区域的温度保持在介质的流动温度,所以即使当流动介质的质量发生突然的重大变化时,该装置也会提供短的启动和响应时间。