Fuel vapor adsorption device of internal combustion engine and method of desorbing fuel vapor from fuel vapor adsorbent
    3.
    发明申请
    Fuel vapor adsorption device of internal combustion engine and method of desorbing fuel vapor from fuel vapor adsorbent 失效
    内燃机燃油蒸气吸附装置及燃料蒸气吸附剂解吸燃料蒸气的方法

    公开(公告)号:US20030056770A1

    公开(公告)日:2003-03-27

    申请号:US10241444

    申请日:2002-09-12

    IPC分类号: F02M001/00

    摘要: An absorbent, such as, for example, an active carbon, is provided in an intake air passage, for example, in an air cleaner, to efficiently adsorb fuel vapor. To ensure that fuel vapor adsorbed into the intake air passage can be efficiently desorbed even when there is only a small amount of the intake air, an intake throttle valve is provided upstream of the adsorbent and an opening of the intake throttle valve is throttled so as to decompress an area near the adsorbent. Desorption of fuel vapor also can be efficiently promoted by using a heater to directly heat the adsorbent in the intake air passage or by heating the intake air to indirectly heat the adsorbent.

    摘要翻译: 例如在空气滤清器中的进气通道中设置吸收剂,例如活性炭,以有效吸附燃料蒸气。 为了确保吸入进气通道中的燃料蒸气即使在仅有少量进气的情况下能够被有效地解吸,也可以在吸附剂的上游设置进气节流阀,并且进气节流阀的开度被节流,以便 以减压吸附剂附近的区域。 通过使用加热器直接加热进气通道中的吸附剂或通过加热进气来间接加热吸附剂,可以有效地促进燃料蒸气的解吸。