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    Fuel vapor treatment system
    1.
    发明授权
    Fuel vapor treatment system 失效
    燃油蒸气处理系统

    公开(公告)号：US06526950B2

    公开(公告)日：2003-03-04

    申请号：US09778758

    申请日：2001-02-08

    申请人： Masashi Ito ,  Mikio Kawai ,  Kazuhiko Shinohara ,  Hiroshi Akama ,  Junji Ito

    发明人： Masashi Ito ,  Mikio Kawai ,  Kazuhiko Shinohara ,  Hiroshi Akama ,  Junji Ito

    IPC分类号： F02M3302

    CPC分类号： F02M25/12 ,  F02M25/0227 ,  F02M25/032 ,  F02M25/089 ,  Y02T10/121

    摘要： A fuel vapor treatment or recovery system for an automotive internal combustion engine. The system comprises a canister containing a fuel vapor adsorbing material. A membrane separation module is provided to be connected to the canister and including a separation membrane for separating a mixture gas into an air-rich component and a fuel vapor-rich component. The separation membrane has an air-selective permeability so that the air-rich component is be able to pass through the separation membrane, the mixture gas containing air and fuel vapor. Additionally, a gas transporting device is provided to be connected to the canister, for causing purge gas to be introduced into the canister to purge fuel vapor from the fuel vapor adsorbing material and causing fuel vapor purged from the canister to be fed to the membrane separation module. Here, the fuel vapor-rich component is fed to an intake air passageway of an engine so that vacuum generated by the engine acts on the separation membrane so as to serve as a driving force for membrane separation. Further, the air-rich component from the membrane separation module is returned to the fuel tank so that fuel vapor component contained in the fuel vapor-rich component is recovered to the fuel tank upon being subjected to at least one of liquefaction and absorption to liquid fuel in the fuel tank.

    摘要翻译： 一种用于汽车内燃机的燃料蒸汽处理或回收系统。 该系统包括容纳燃料蒸汽吸附材料的罐。 提供了一种膜分离模块，其连接到罐并且包括用于将混合气体分离成富含空气的组分和富含燃料蒸气的组分的分离膜。 分离膜具有空气选择性渗透性，使得富含空气的组分能够通过分离膜，包含空气和燃料蒸气的混合气体。 另外，气体输送装置设置成连接到罐，用于使净化气体被引入到罐中以从燃料蒸汽吸附材料中吹扫燃料蒸气并使得从罐排出的燃料蒸汽被供给到膜分离 模块。 这里，将富燃料成分供给到发动机的进气通路，使得由发动机产生的真空作用在分离膜上，作为膜分离的驱动力。 此外，来自膜分离模块的富含空气的组分返回到燃料箱，使得包含在燃料蒸气丰富组分中的燃料蒸汽成分在经受液化和吸收液体中的至少一种后被回收到燃料箱 燃油箱内的燃油。

    Exhaust gas purifying system
    4.
    发明授权
    Exhaust gas purifying system 失效
    废气净化系统

    公开(公告)号：US06729125B2

    公开(公告)日：2004-05-04

    申请号：US10244473

    申请日：2002-09-17

    申请人： Katsuo Suga ,  Yasunari Hanaki ,  Maki Shimada ,  Hiroshi Akama ,  Motohisa Kamijo ,  Hironori Wakamatsu

    发明人： Katsuo Suga ,  Yasunari Hanaki ,  Maki Shimada ,  Hiroshi Akama ,  Motohisa Kamijo ,  Hironori Wakamatsu

    IPC分类号： F01N300

    CPC分类号： B01D53/9454 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0871 ,  F01N13/009 ,  F01N13/0093 ,  F01N2240/16 ,  F02D41/10 ,  Y02A50/2324 ,  Y02T10/22

    摘要： An exhaust gas purifying system for an internal combustion engine mounted on an automotive vehicle. The exhaust gas purifying system includes an exhaust gas component concentration regulating device disposed in an exhaust gas passageway of the engine, for regulating concentrations of gas components in exhaust gas discharged from the engine such that the concentrations of carbon monoxide and hydrogen are respectively not more than 2.0% by volume and not less than 0.5% by volume and such that a volume concentration ratio of [hydrogen/carbon monoxide] is not smaller than 0.5, in rich and stoichiometric conditions of exhaust gas. Additionally, a NOx adsorbing and reducing catalyst is disposed in the exhaust gas passageway downstream of the exhaust gas component concentration regulating device, for adsorbing nitrogen oxides in a lean condition of the exhaust gas and reducing the nitrogen oxides into nitrogen in the rich and stoichiometric conditions.

    摘要翻译： 一种用于安装在机动车辆上的内燃机的排气净化系统。 废气净化系统包括排气组分浓度调节装置，其设置在发动机的废气通道中，用于调节从发动机排出的废气中的气体成分的浓度，使得一氧化碳和氢气的浓度分别不大于 2.0体积％且不小于0.5体积％，并且在废气的富集和化学计量条件下，[氢/一氧化碳]的体积浓度比不小于0.5。 另外，在废气成分浓度调节装置的下游侧的排气通路中设置有NOx吸附还原催化剂，用于吸附废气中的氮氧化物，并且在浓的化学计量条件下将氮氧化物还原为氮 。

    Exhaust gas purifying device
    6.
    发明授权
    Exhaust gas purifying device 有权
    废气净化装置

    公开(公告)号：US06370870B1

    公开(公告)日：2002-04-16

    申请号：US09417012

    申请日：1999-10-12

    申请人： Motohisa Kamijo ,  Maki Kamikubo ,  Hiroshi Akama ,  Jyunji Itou ,  Motohiro Shinzawa ,  Yasuhisa Kitahara

    发明人： Motohisa Kamijo ,  Maki Kamikubo ,  Hiroshi Akama ,  Jyunji Itou ,  Motohiro Shinzawa ,  Yasuhisa Kitahara

    IPC分类号： F01N300

    CPC分类号： B01D53/9481 ,  B01D2255/91 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/206 ,  F01N9/00 ,  F01N2430/06 ,  F01N2900/0422 ,  F02D41/0275 ,  F02D41/405 ,  Y02T10/44 ,  Y02T10/47

    摘要： A nitrogen oxide absorbing material (38) which absorbs nitrogen oxide when the reduction component concentration of exhaust gas in the exhaust passage (31) of an engine (1) is lower than a predetermined concentration, and discharges nitrogen oxide when the reduction component concentration of exhaust gas in the exhaust passage (31) of the engine (1) is higher than the predetermined concentration, and a catalyst (38) which promotes reduction of the discharged nitrogen oxides by a reduction component are provided. A controller (40) first reduces the reduction component concentration of the exhaust gas over a first predetermined time period by, for example, advancing the fuel injection timing. The controller (40) then increases the reduction component concentration of the exhaust gas over a second predetermined time period by, for example, retarding the fuel injection timing.

    摘要翻译： 当发动机（1）的排气通道（31）中的排气的还原成分浓度低于预定浓度时，吸收氮氧化物的氮氧化物吸收材料（38），当还原成分浓度为 发动机（1）的排气通路（31）中的废气高于预定浓度，并且提供通过还原成分促进排出的氮氧化物还原的催化剂（38）。 控制器（40）首先通过例如提前燃料喷射正时来在第一预定时间段内减少废气的还原成分浓度。 然后，控制器（40）通过例如延迟燃料喷射正时在第二预定时间段内增加排气的还原组分浓度。