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    • 21. 发明授权
    • Fuel injection system for an internal combustion engine
    • 内燃机燃油喷射系统
    • US5255655A
    • 1993-10-26
    • US640369
    • 1991-01-29
    • Helmut DenzAndreas RothErnst Wild
    • Helmut DenzAndreas RothErnst Wild
    • F02B1/04F02D41/04F02D41/10F02D41/12F02D41/22
    • F02D41/105F02D41/045F02D41/107F02D41/12F02B1/04
    • In a fuel injection system for an internal combustion engine, the system calculates the pulse width of the angle-synchronous fuel injection pulses from a main load sensor, such as an inlet manifold pressure sensor (22) or a hot film or hot wire air mass meter (24). Under rapidly-changing load conditions of the engine, the signal from the main load sensor is not sufficiently accurate to maintain a closely stoichiometric mixture. The present invention provides a throttle valve angle sensor for monitoring the degree of opening of an engine throttle (18), and changes the calculation of the basic angle-synchronous fuel injection signal when the measured rate of change of the throttle valve angle reaches a predetermined valve. The change of calculation may comprise altering filtering characteristics of a filter function normally applied to the basic angle-synchronous fuel injection signal, altering the sampling of the signal from the engine load sensor, or deriving the basic angle-synchronous fuel injection signal from the throttle valve angle signal instead of from the main load sensor signal. Furthermore, the load change compensation may be changed to a calculation from the throttle valve load signal instead of the main load signal. The system may also be arranged to inject one or more intermediate asynchronous fuel injection pulses in between the normal angle-synchronous injections, to enable the fuel/air mixture to follow a rapid change in engine load more closely.
    • PCT No.PCT / EP89 / 00673 Sec。 371 1991年1月29日第 102(e)日期1991年1月29日PCT Filed 1989年6月15日PCT公布。 第WO90 / 15921号公报 日期为1990年12月27日。在内燃机的燃料喷射系统中,系统计算来自主负荷传感器(例如入口歧管压力传感器(22))或角度同步燃料喷射脉冲 热膜或热丝空气质量计(24)。 在发动机的快速变化的负载条件下,来自主负载传感器的信号不足以保持紧密化学计量的混合物。 本发明提供了一种用于监测发动机节气门(18)的开度的节气门角度传感器,并且当所测量的节气门角度变化率达到预定值时,改变基本角同步燃料喷射信号的计算 阀。 计算的改变可以包括改变通常应用于基本角度 - 同步燃料喷射信号的滤波器功能的滤波特性,改变来自发动机负载传感器的信号的采样,或从节气门导出基本的角度同步燃料喷射信号 阀角信号代替主负载传感器信号。 此外,负载变化补偿可以改变为来自节气门负载信号而不是主负载信号的计算。 系统还可以被布置成在正常角度同步喷射之间注入一个或多个中间异步燃料喷射脉冲,以使得燃料/空气混合物更紧密地跟随发动机负载的快速变化。
    • 22. 发明授权
    • Tank-venting apparatus as well as a method and an arrangement for
checking the same
    • 作为检查方法和装置的油罐装置
    • US5205263A
    • 1993-04-27
    • US865923
    • 1992-04-09
    • Andreas BlumenstockHelmut DenzWerner MezgerErnst Wild
    • Andreas BlumenstockHelmut DenzWerner MezgerErnst Wild
    • G01M3/26B60K15/035F02M25/08G01M15/04
    • F02M25/0809B60K15/03504
    • The invention is directed to a method of checking a tank-venting apparatus for a motor vehicle equipped with a fuel tank and an internal combustion engine having an intake pipe. The apparatus includes an adsorption filter having a venting end and an intake end, a supply line connecting the intake end to the tank and a connecting line interconnecting the intake pipe of the engine and the intake end of the adsorption filter. A tank-venting valve is mounted in the connecting line between the intake pipe and the intake end of the adsorption filter and a drive unit for actuating the tank-venting valve. The method includes the steps of: changing the open state of the tank-venting valve when a pregiven operating state range of the engine is present; detecting the difference pressure between the pressure at the intake end of the adsorption filter and the ambient pressure; checking if the difference pressure or the end value of the difference pressure change lies in a predetermined range after the open state of the tank-venting valve is changed; and, issuing a fault announcement if neither the difference pressure, the time constant of the difference pressure change nor the end value of the difference pressure change lies in said predetermined range. The invention utilizes the realization that the difference pressure is based on the gas flow into and out of the adsorption filter. The difference pressure drops when the outflow is clogged or when there is a leak. On the other hand, the difference pressure increases when the inflow is clogged. In this way, the operability of the tank-venting apparatus can be checked in a simple manner.
    • 本发明涉及一种检查装备有燃料箱的机动车辆的排气装置和具有进气管的内燃机的方法。 该装置包括具有通气端和进气端的吸附过滤器,将进气端连接到油箱的供给管线和将发动机的进气管与吸附过滤器的进气端相连的连接管线。 排气阀安装在进气管和吸附过滤器的进气端之间的连接管路中,以及用于致动排气阀的驱动单元。 该方法包括以下步骤:当存在发动机的预定运行状态范围时改变通气阀的打开状态; 检测吸附过滤器吸入端的压力与环境压力之间的差压; 检查在压力变化的打开状态发生变化之后,差压变化的差压或者结束值是否在规定的范围内, 以及如果差压,差压变化的时间常数和差压变化的结束值都不在所述预定范围内,则发出故障通知。 本发明利用差压是基于进入和离开吸附过滤器的气体流量的认识。 当流出物堵塞或泄漏时,差压力下降。 另一方面,当流入物堵塞时,差压增加。 以这种方式,可以以简单的方式检查罐排放装置的可操作性。
    • 23. 发明授权
    • Gas sensor with sheath tube wherein the sheath tube or the sensor element is thermally decoupled from the sensor housing
    • 具有护套管的气体传感器,其中护套管或传感器元件与传感器外壳热分离
    • US08001827B2
    • 2011-08-23
    • US10569388
    • 2004-06-23
    • Helmut WeylHelmut DenzMatthias Entenmann
    • Helmut WeylHelmut DenzMatthias Entenmann
    • G01N7/00
    • G01N27/4077
    • A sensor is provided, in particular a gas sensor for determining the concentration of a gas component in a measuring gas, which has a sensor element that projects from a housing by a measuring-gas-side end section exposed to the measuring gas, and a sheath tube having gas passageways, which is placed over the measuring-gas-side end section and affixed on the housing. To prevent condensation of water vapor contained in the measuring gas in the measuring space enclosed by the housing and the sheath tube, and thus the production of water droplets that reach the hot sensor element, sheath tube and/or sensor element are/is thermally decoupled from the housing. The thermal decoupling is produced using, for instance, a flange sleeve made of a material having poor thermal conductivity, which separates the sheath tube from the housing by a flange and, via a sleeve section, is inserted in the space between the housing and the measuring-gas-side end section of the sensor element.
    • 提供了一种传感器,特别是用于确定测量气体中的气体成分的浓度的气体传感器,其具有通过暴露于测量气体的测量气体侧端部从壳体突出的传感器元件,以及 护套管具有气体通道,其放置在测量气体侧端部上并且固定在壳体上。 为了防止包含在由壳体和护套管包围的测量空间中的测量气体中的水蒸汽冷凝,并且因此到达热传感器元件,护套管和/或传感器元件的水滴的产生被热解耦 从房屋。 使用例如由具有差的热导率的材料制成的凸缘套筒来产生热去耦,其通过凸缘将护套管与壳体分离,并且通过套筒部分插入壳体和壳体之间的空间中 传感器元件的测量气体侧端部。
    • 24. 发明申请
    • Sensor
    • 传感器
    • US20080223110A1
    • 2008-09-18
    • US10569388
    • 2004-06-23
    • Helmut WeylHelmut DenzMatthias Entenmann
    • Helmut WeylHelmut DenzMatthias Entenmann
    • G01N33/00
    • G01N27/4077
    • A sensor is provided, in particular a gas sensor for determining the concentration of a gas component in a measuring gas, which has a sensor element that projects from a housing by a measuring-gas-side end section exposed to the measuring gas, and a sheath tube having gas passageways, which is placed over the measuring-gas-side end section and affixed on the housing. To prevent condensation of water vapor contained in the measuring gas in the measuring space enclosed by the housing and the sheath tube, and thus the production of water droplets that reach the hot sensor element, sheath tube and/or sensor element are/is thermally decoupled from the housing. The thermal decoupling is produced using, for instance, a flange sleeve made of a material having poor thermal conductivity, which separates the sheath tube from the housing by a flange and, via a sleeve section, is inserted in the space between the housing and the measuring-gas-side end section of the sensor element.
    • 提供了一种传感器,特别是用于确定测量气体中的气体成分的浓度的气体传感器,其具有通过暴露于测量气体的测量气体侧端部从壳体突出的传感器元件,以及 护套管具有气体通道,其放置在测量气体侧端部上并且固定在壳体上。 为了防止包含在由壳体和护套管包围的测量空间中的测量气体中的水蒸汽冷凝,并且因此到达热传感器元件,护套管和/或传感器元件的水滴的产生被热解耦 从房屋。 使用例如由具有差的热导率的材料制成的凸缘套筒来产生热去耦,其通过凸缘将护套管与壳体分开,并且通过套筒部分插入在壳体和壳体之间的空间中 传感器元件的测量气体侧端部。
    • 30. 发明授权
    • Method and arrangement for checking the operability of a tank-venting
system
    • 检查排气系统的可操作性的方法和装置
    • US5463998A
    • 1995-11-07
    • US129039
    • 1993-10-04
    • Helmut DenzAndreas Blumenstock
    • Helmut DenzAndreas Blumenstock
    • F02M25/08F02M33/02
    • F02M25/0809
    • A method for checking the operability of a tank-venting system in a vehicle having an internal combustion engine, which tank-venting system has a tank with a tank-pressure sensor, an adsorption filter connected to the tank via a tank-connecting line, and a tank-venting valve which is connected to the adsorption filter via a valve line, in which system the adsorption filter has a venting line which can be closed with the aid of a shut-off valve, has the following steps:closing the shut-off valve;opening the tank-venting valve;determining the build-up gradient (p+) of the underpressure building up in the tank;closing the tank-venting valve;determining the decay gradient (p-) of the decaying underpressure in the tank;mathematically combining the build-up and decay gradients in a manner such that the influence of the fill level has as little effect as possible on the evaluation variable (Q) formed by means of the combination; and,comparing the value of the evaluation variable with a threshold value (Q.sub.-- SW) and evaluating the system as non-operative if the value of the evaluation variable and the threshold value fulfill a pregiven relationship.
    • PCT No.PCT / DE93 / 00019 Sec。 371日期:1993年10月4日 102(e)日期1993年10月4日PCT提交1993年1月14日PCT公布。 出版物WO93 / 153133 日期:1995年8月5日。一种用于检查具有内燃机的车辆中的排气系统的可操作性的方法,该排气系统具有带有罐压传感器的罐,连接到罐的吸附过滤器 通过罐连接管路和通过阀线连接到吸附过滤器的排气阀,其中吸附过滤器具有可以通过截止阀关闭的通气管道的系统具有 以下步骤:关闭截止阀; 打开通气阀; 确定坦克中负压建筑物的积聚梯度(p +); 关闭排气阀; 确定罐中腐蚀负压的衰减梯度(p-); 以积累和衰减梯度的数学方式组合,使得填充水平的影响对通过组合形成的评估变量(Q)具有尽可能小的影响; 以及将所述评估变量的值与阈值(Q-SW)进行比较,并且如果所述评估变量的值和所述阈值达到预先确定的关系,则将所述系统评估为非操作的。