Venting system, in particular for a fuel tank
    1.
    发明授权
    Venting system, in particular for a fuel tank 有权
    通风系统,特别是燃油箱

    公开(公告)号:US09297717B2

    公开(公告)日:2016-03-29

    申请号:US13992895

    申请日:2011-11-25

    摘要: In a venting system, in particular for a fuel tank of a motor vehicle, which has a sorption filter for temporarily storing fuel evaporating from the fuel tank and a fluid-conveying conveying device situated between the sorption filter and an air supply or an intake manifold of an internal combustion engine, according to the present system, the conveying device is a bidirectional conveying device which is switchable in a first conveying direction in the direction of the internal combustion engine for regenerating the sorption filter and in a second conveying direction in the direction of the sorption filter for carrying out a fuel tank leak diagnosis.

    摘要翻译: 在通气系统中,特别是用于机动车辆的燃料箱,其具有用于临时储存从燃料箱蒸发的燃料的吸附过滤器和位于吸附过滤器与空气供应或进气歧管之间的流体输送输送装置 根据本系统,输送装置是双向输送装置,其能够沿内燃机的方向在第一输送方向上切换,用于再生吸附过滤器,并且沿第二输送方向 用于进行燃油箱泄漏诊断的吸附过滤器。

    DEVICE FOR SELECTIVELY REGENERATING OR PERFORMING TANK LEAKAGE DIAGNOSIS OF A TANK VENTILATION SYSTEM
    3.
    发明申请
    DEVICE FOR SELECTIVELY REGENERATING OR PERFORMING TANK LEAKAGE DIAGNOSIS OF A TANK VENTILATION SYSTEM 有权
    用于选择性地再生或执行油罐通风系统的油箱泄漏诊断的装置

    公开(公告)号:US20140013944A1

    公开(公告)日:2014-01-16

    申请号:US13976174

    申请日:2011-11-25

    IPC分类号: F02M25/08

    摘要: A device for selectively regenerating and performing tank leakage diagnosis of a tank ventilation system has a sorption filter and a pump. The sorption filter is configured to temporarily store fuel evaporating from a fuel tank. The pump is arranged at a fresh-air side of the sorption filter and is connected in fluid-conducting fashion to the sorption filter. The pump is configured to generate a fluid flow to regenerate the sorption filter.

    摘要翻译: 用于选择性地再生和执行油箱通风系统的油箱泄漏诊断的装置具有吸附过滤器和泵。 吸附过滤器被配置为临时储存从燃料箱蒸发的燃料。 泵设置在吸附过滤器的新鲜空气侧,并且以流体传导方式连接到吸附过滤器。 泵配置成产生流体流以再生吸附过滤器。

    VENTING SYSTEM, IN PARTICULAR FOR A FUEL TANK
    4.
    发明申请
    VENTING SYSTEM, IN PARTICULAR FOR A FUEL TANK 有权
    燃油系统,特别是燃油箱

    公开(公告)号:US20130319378A1

    公开(公告)日:2013-12-05

    申请号:US13992895

    申请日:2011-11-25

    IPC分类号: G01M3/04 F02M25/08

    摘要: In a venting system, in particular for a fuel tank of a motor vehicle, which has a sorption filter for temporarily storing fuel evaporating from the fuel tank and a fluid-conveying conveying device situated between the sorption filter and an air supply or an intake manifold of an internal combustion engine, according to the present system, the conveying device is a bidirectional conveying device which is switchable in a first conveying direction in the direction of the internal combustion engine for regenerating the sorption filter and in a second conveying direction in the direction of the sorption filter for carrying out a fuel tank leak diagnosis.

    摘要翻译: 在通气系统中,特别是用于机动车辆的燃料箱,其具有用于临时储存从燃料箱蒸发的燃料的吸附过滤器和位于吸附过滤器与空气供应或进气歧管之间的流体输送输送装置 根据本系统,输送装置是双向输送装置,其能够沿内燃机的方向在第一输送方向上切换,用于再生吸附过滤器,并且沿第二输送方向 用于进行燃油箱泄漏诊断的吸附过滤器。

    METHOD FOR MONITORING THE LEAK TIGHTNESS OF A FUEL TANK SYSTEM
    6.
    发明申请
    METHOD FOR MONITORING THE LEAK TIGHTNESS OF A FUEL TANK SYSTEM 审中-公开
    用于监测燃油箱系统的泄漏密度的方法

    公开(公告)号:US20140109882A1

    公开(公告)日:2014-04-24

    申请号:US14057228

    申请日:2013-10-18

    IPC分类号: F02B37/12

    摘要: A method for monitoring the leak tightness of a fuel tank system is provided, the fuel tank system being provided for supplying fuel to a supercharged internal combustion engine. A pressure accumulator is filled from the supercharged intake manifold area of the internal combustion engine. The pressure from the pressure accumulator is transferred to the fuel tank system, which includes in particular the fuel tank and, if necessary, an activated carbon filter. The pressure curve in the closed fuel tank system is observed. A leak in the fuel tank system may be inferred on the basis of the pressure curve, if necessary.

    摘要翻译: 提供了一种用于监测燃料箱系统的泄漏密封性的方法,所述燃料箱系统用于向增压内燃机供应燃料。 蓄压器由内燃机的增压进气歧管区域填充。 来自蓄压器的压力被传递到燃料箱系统,其特别地包括燃料箱和必要时包括活性炭过滤器。 观察封闭燃油箱系统的压力曲线。 如果需要,可以基于压力曲线来推断燃料箱系统中的泄漏。

    Method to test for a leak in a fuel tank system
    10.
    发明授权
    Method to test for a leak in a fuel tank system 有权
    测试燃油箱系统泄漏的方法

    公开(公告)号:US07963150B2

    公开(公告)日:2011-06-21

    申请号:US11964940

    申请日:2007-12-27

    申请人: Silke Haag

    发明人: Silke Haag

    IPC分类号: G01M3/04

    CPC分类号: G01M3/32

    摘要: A method to test for a leak in a fuel tank system of a motor vehicle includes a fuel tank is cut off during the overrun by means of at least one cutoff device, and the pressure, which builds up in the fuel tank within a specifiable time interval is acquired; if a specifiable maximum pressure or a specifiable vacuum threshold is not achieved, said cutoff device is opened and closed again after a specifiable time period, and a vacuum is produced and acquired in a subsequent vacuum phase, and a parameter, which characterizes the leak tightness, is determined and evaluated from the vacuum achieved within a specifiable time period and the overpressure, which is achieved, and the test for a leak is concluded; if the specifiable maximum pressure is achieved, a parameter characterizing the leak tightness is determined from the acquired overpressure and the specifiable overpressure threshold and is compared with a specifiable reference value and for the case that the determined parameter is smaller than the reference value, a leak-proof fuel tank system is suggested and the test for a leak is concluded, and if the determined parameter is greater than the specifiable reference value, the cutoff device is opened and a vacuum is produced and acquired in the fuel tank in a subsequent vacuum phase, whereby a leak-proof fuel tank system is then suggested if a specifiable vacuum threshold is achieved, and hence the test for a leak is concluded, and whereby the test for a leak is then concluded if the vacuum threshold is not achieved within a specifiable time period, and hence the parameter characterizing the leak tightness is evaluated.

    摘要翻译: 一种用于测试机动车辆的燃料箱系统中的泄漏的方法,包括:通过至少一个切断装置在溢出期间切断燃料箱,以及在指定时间内积聚在燃料箱中的压力 间隔获得; 如果没有实现可指定的最大压力或可指定的真空阈值,则在指定的时间段之后再次打开和关闭所述截断装置,并且在随后的真空阶段中产生和获取真空,以及表征泄漏密度的参数 ,从在指定时间段内实现的真空和实现的超压确定和评估,并确定泄漏试验; 如果达到可指定的最大压力,则从获取的超压和可指定的超压阈值确定表征泄漏密度的参数,并将其与可指定的参考值进行比较,并且对于所确定的参数小于参考值的情况,泄漏 建议使用防燃油箱系统,并确定泄漏试验,如果确定的参数大于指定参考值,则切断装置打开,并在随后的真空阶段在燃料箱中产生并获取真空 因此,如果达到可指定的真空阈值,则建议使用防漏油箱系统,因此结束泄漏测试,从而如果在可指定的真空阈值内未达到真空阈值,则结束测试 时间段,因此评价表征泄漏密度的参数。