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    • 5. 发明授权
    • Tank venting device for motor vehicles
    • 汽车油箱排气装置
    • US5881700A
    • 1999-03-16
    • US937791
    • 1997-09-24
    • Juergen GrasAndreas BlumenstockGeorg Mallebrein
    • Juergen GrasAndreas BlumenstockGeorg Mallebrein
    • B60K15/035F02M25/08F02M37/04
    • F02M25/089B60K15/03504
    • A tank venting device for motor vehicles having an internal combustion engine supplied from a fuel tank. The device includes a filter housing, which is connectable to a venting stub of the fuel tank and includes an adsorption filter, whose air inlet is occupied by a shutoff valve and whose air outlet communicates with an intake tube of the engine, and an air feed pump and a diagnosis device. To improve the metering capability for the regeneration mixture aspirated from the filter to the intake tube of the engine, the air feed pump is disposed with a reversible feeding direction between the air outlet of the filter housing and the intake tube of the engine. The air feed pump is controlled in its feeding direction reversal via a multiposition control valve such that the filter housing is located on the intake side of the air feed pump for the duration of filter regeneration, and on the pressure side of the air feed pump for the duration of error diagnosis.
    • 一种用于机动车辆的罐式排气装置,具有从燃料箱供给的内燃机。 该装置包括可连接到燃料箱的排气柱的过滤器壳体,并且包括吸入过滤器,吸入过滤器的空气入口被截止阀占据,并且其空气出口与发动机的进气管连通, 泵和诊断装置。 为了提高从过滤器抽吸到发动机的进气管的再生混合物的计量能力,空气供给泵在过滤器壳体的空气出口和发动机的进气管之间以可逆的进给方向设置。 空气供给泵通过多位控制阀在其进给方向上被反向控制,使得过滤器壳体在过滤器再生期间位于供气泵的进气侧,并且在空气供给泵的压力侧 错误诊断的持续时间。
    • 6. 发明授权
    • Tank-venting apparatus as well as a method and an arrangement for
checking the operability of a tank-venting valve
    • 罐式排气装置以及用于检查排气阀的可操作性的方法和装置
    • US5476083A
    • 1995-12-19
    • US230683
    • 1994-04-20
    • Andreas Blumenstock
    • Andreas Blumenstock
    • B60K15/035F16K37/00F02M33/02F02B77/08
    • B60K15/03504F16K37/0091
    • The invention is directed to a method for checking the operability of a tank-venting valve which is connected in a venting line of a tank-venting apparatus between the intake pipe of the internal combustion engine and an adsorption filter equipped with a venting line. The tank-venting valve can be driven into two switching states, namely, an open state and a closed state. The method includes the steps of: driving the tank-venting valve to reach one of the two selectable switching states; checking the pressure on the end of the tank-venting valve facing away from the intake pipe and checking whether this pressure exhibits a time-dependent trace as it cannot occur in the desired switching state; and, concluding that a defect in the tank-venting valve is present when the condition checked in the previous step is satisfied. With this method, the operability of a simple tank-venting valve can be reliably checked. The method requires no special mechanical, capacitive or inductive checking arrangement.
    • 本发明涉及一种在内燃机的进气管与装有排气管的吸附过滤器之间连接在通气装置的排气管中的通气阀的可操作性的方法。 排气阀可以被驱动到两个开关状态,即打开状态和关闭状态。 该方法包括以下步骤:驱动排气阀达到两种可选开关状态之一; 检查排气阀末端的压力是否背离进气管,检查该压力是否显示出时间相关的痕迹,因为它不会在期望的开关状态下发生; 并且认为当满足前一步骤中检查的条件时,存在通气阀的缺陷。 通过这种方法,可以可靠地检查简单的排气阀的可操作性。 该方法不需要特殊的机械,电容或电感检查装置。
    • 8. 发明授权
    • Tank-venting arrangement and method for checking the tightness thereof
    • 油罐安装方法及其检验方法
    • US5220896A
    • 1993-06-22
    • US811526
    • 1991-12-20
    • Andreas BlumenstockHelmut DenzUlrich SteinbrennerErnst Wild
    • Andreas BlumenstockHelmut DenzUlrich SteinbrennerErnst Wild
    • F02B77/08B60K15/035F02M25/08F02M37/00
    • B60K15/03504
    • A tank-venting arrangement includes: a tank; an adsorption filter connected to the tank; a tank-venting valve interconnecting the adsorption filter and the intake pipe of the engine; a control unit for driving the tank-venting valve so that it closes or opens; a pressure difference sensor for measuring the pressure difference between the pressure in the tank and the ambient pressure; and, an integrating unit for determining the time integral of the pressure difference. With this tank-venting arrangement, a simple and reliable determination can be made as to when so much fuel vapor should have been adsorbed in the active charcoal filter so that when the tank-venting valve is opened thereafter, a lean correction by means of a lambda controller can be required. If this lean correction is not made, this is an indication that the fuel flowing from the tank has not reached the tank-venting valve so that the tank-venting arrangement leaks or is obstructed.
    • 排气装置包括:罐; 连接到罐的吸附过滤器; 将吸附过滤器与发动机的进气管相连接的排气阀; 控制单元,用于驱动所述排气阀使其关闭或打开; 压力差传感器,用于测量罐中的压力与环境压力之间的压力差; 以及用于确定压力差的时间积分的积分单元。 通过这种排气装置,可以简单可靠地确定当活性炭过滤器吸附多少燃料蒸汽时,当其后打开排气阀时,借助于 可以使用lambda控制器。 如果没有进行精益校正,这表明从罐中流出的燃料没有到达排放阀,以致于排气装置泄漏或被阻塞。
    • 9. 发明授权
    • Tank-venting arrangement and method of operating the same
    • 油罐布置及其运行方法
    • US5197442A
    • 1993-03-30
    • US811294
    • 1991-12-20
    • Andreas BlumenstockHelmut DenzUlrich SteinbrennerErnst Wild
    • Andreas BlumenstockHelmut DenzUlrich SteinbrennerErnst Wild
    • B60K15/077B60K15/035F02M25/08F02M37/00
    • B60K15/03504F02M25/0818
    • A tank-venting arrangement includes: a tank having a tank closure; an electrically drivable check valve; an adsorption filter; connecting lines for interconnecting the above components; a difference pressure sensor which measures the pressure difference between the pressure in the tank and the ambient pressure and supplies a pressure difference signal; a comparator which, at least for a running engine, compares the pressure difference signal to upper and lower threshold values and supplies an opening signal to the check valve to open the latter when the pressure difference signal is greater than the upper threshold value and a closure signal for closing the check valve when the pressure difference signal drops below the lower threshold value; and, a detector unit which supplies an opening signal to the check valve for opening the check valve when the sensor determines a possible opening of the tank and a closure signal for closing the check valve when the sensor determines a possible closure of the tank. With the aid of the check valve and the difference pressure sensor which measures the pressure difference between the pressure in the tank and the ambient pressure, the tank-venting arrangement can be so operated that at least for a running engine, a desired maximum overpressure in the tank can be obtained relative to the ambient pressure independently of the extent of the underpressure in that part of the arrangement forward of the check valve.
    • 排气装置包括:具有罐盖的罐; 电驱动止回阀; 吸附过滤器; 用于连接上述部件的连接线; 差压传感器,其测量罐中的压力与环境压力之间的压力差,并提供压力差信号; 比较器,其至少对于运行的发动机,将压力差信号与上限和下限阈值进行比较,并且当压力差信号大于上限阈值时,向止回阀提供打开信号以打开后者, 当压力差信号下降到低于阈值时关闭止回阀的信号; 以及检测器单元,当传感器确定罐的可能打开时,检测器单元向打开止回阀的打开信号提供打开信号,以及当传感器确定罐可能关闭时关闭止回阀的关闭信号。 借助于止回阀和差压传感器,该差压传感器测量罐中的压力与环境压力之间的压力差,罐排气装置可以如此操作,使得至少对于运行的发动机来说,期望的最大超压在 可以独立于止回阀向前的布置部分的负压程度,相对于环境压力获得罐。