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    DEVICE FOR DETECTION OF SULFUR CONCENTRATION IN FUEL OR OIL
    76.
    发明申请
    DEVICE FOR DETECTION OF SULFUR CONCENTRATION IN FUEL OR OIL 有权
    用于检测燃油或油中的硫浓度的装置

    公开(公告)号：US20090241638A1

    公开(公告)日：2009-10-01

    申请号：US12377039

    申请日：2008-06-30

    申请人： Takamitsu Asanuma ,  Kohei Yoshida ,  Hiromasa Nishioka ,  Hiroshi Otsuki ,  Yuka Nakata

    发明人： Takamitsu Asanuma ,  Kohei Yoshida ,  Hiromasa Nishioka ,  Hiroshi Otsuki ,  Yuka Nakata

    IPC分类号： G01N1/22

    CPC分类号： G01N33/287 ,  F01N2560/027 ,  G01N33/0042 ,  Y02A50/248

    摘要： A metal compound (50) able to trap a sulfur component in exhaust gas is arranged in a flow path of the exhaust gas, a property of the metal compound (50) changing along with an increase of the amount of sulfur component trapped at the metal compound (50) is measured, and the cumulative value of the amount of SOX actually contained in the exhaust gas is calculated from the measured property. On the other hand, the assumed cumulative value of the amount of SOx, assumed to be contained in the exhaust gas when assuming that fuel or oil of a sulfur concentration assumed in advance is used, is calculated. It is judged if fuel or oil with a high sulfur concentration is being used from the actual cumulative value of the amount of SOX and the assumed cumulative value of the amount of SOx.

    摘要翻译： 排气中的硫成分的金属化合物（50）配置在废气的流路中，金属化合物（50）的特性随着金属中被捕获的硫成分的量的增加而变化 测量化合物（50），并根据测定的性质计算废气中实际含有的SOX量的累积值。 另一方面，假设假设使用预先假设的硫浓度的燃料或油的假定在废气中包含的SO x的量的假定累积值。 根据SOX量的实际累积值和SOx量的假定累计值判断是否使用了高硫浓度的燃料或油。

    Exhaust gas control apparatus for internal combustion engine
    77.
    发明申请
    Exhaust gas control apparatus for internal combustion engine 有权
    内燃机排气控制装置

    公开(公告)号：US20070089405A1

    公开(公告)日：2007-04-26

    申请号：US10560733

    申请日：2005-06-06

    申请人： Takamitsu Asanuma

    发明人： Takamitsu Asanuma

    IPC分类号： F01N3/00

    CPC分类号： F01N3/0885 ,  F01N3/0842 ,  F01N11/00 ,  F01N2550/03 ,  F01N2560/027 ,  F01N2570/04 ,  Y02T10/47

    摘要： There are provided a NOx storage reduction catalyst which is provided in an exhaust passage for an engine, and a sulfur concentration sensor which can detect a total concentration of SOx and H2S in exhaust gas that has passed through the NOx catalyst, and a concentration of SOx in the exhaust gas. An operating state of the engine is controlled such that SOx is released from the NOx catalyst (sulfur poisoning recovery process). When a concentration of the hydrogen sulfide obtained based on the total concentration and the concentration of SOx that are detected by the sulfur concentration sensor during the sulfur poisoning recovery process exceeds a permissible limit, an operating state of the engine is controlled such that the sulfur oxide is released from the NOx catalyst, an amount of the released sulfur oxide is in a predetermined range, and the concentration of the hydrogen sulfide is reduced.

    摘要翻译： 提供了一种设置在用于发动机的排气通道中的NOx储存还原催化剂，以及能够检测已经通过的废气中的SO x和H 2 S的总浓度的硫浓度传感器 NOx催化剂和废气中的SO x浓度。 控制发动机的运转状态使得SO x从NOx催化剂中释放出来（硫中毒恢复过程）。 当在硫中毒恢复过程中基于硫浓度传感器检测到的总浓度和SO x浓度获得的硫化氢浓度超过许可极限时，控制发动机的运行状态，使得硫氧化物 从NOx催化剂释放，释放的硫氧化物的量处于预定范围内，并且硫化氢的浓度降低。

    Exhaust gas purification device for an internal combustion engine
    79.
    发明授权
    Exhaust gas purification device for an internal combustion engine 失效
    内燃机用废气净化装置

    公开(公告)号：US5974794A

    公开(公告)日：1999-11-02

    申请号：US54172

    申请日：1998-04-02

    申请人： Masato Gotoh ,  Kenji Katoh ,  Takamitsu Asanuma

    发明人： Masato Gotoh ,  Kenji Katoh ,  Takamitsu Asanuma

    IPC分类号： F02D45/00 ,  B01D53/94 ,  F01N3/08 ,  F01N3/20 ,  F01N3/24 ,  F01N3/28 ,  F02D41/00 ,  F02D41/02 ,  F02D41/04 ,  F01N3/00

    CPC分类号： F02D41/042 ,  B01D53/9422 ,  B01D53/9481 ,  B01D53/9495 ,  F01N3/0238 ,  F01N3/0842 ,  F01N3/0885 ,  F02D41/0275 ,  B01D2255/1021 ,  B01D2255/2042 ,  F01N2610/02 ,  F01N2610/03 ,  F01N2610/04

    摘要： The exhaust gas purification device includes a NO.sub.x absorbent disposed in an exhaust gas passage of an internal combustion engine. The engine is mainly operated at a lean air-fuel ratio. The NO.sub.x absorbent absorbs NO.sub.x in the exhaust gas from the engine when the exhaust gas flowing into the NO.sub.x absorbent is at a lean air-fuel ratio, and releases the NO.sub.x absorbed therein and reduces it when the air-fuel ratio of the exhaust gas becomes a rich air-fuel ratio. A control circuit is provided for controlling the operating air-fuel ratio of the engine. When the ignition switch of the engine is turned off, the control circuit continues the engine operation for a predetermined period before terminating the engine operation. During this engine operation, the operating air-fuel ratio of the engine is controlled at a rich air-fuel ratio to supply exhaust gas with a rich air-fuel ratio to the NO.sub.x absorbent. Therefore, NO.sub.x absorbed and held therein when the ignition switch is turned off is released and reduced by the rich air-fuel ratio exhaust gas from the engine. Since the NO.sub.x absorbent is maintained at the condition where no NO.sub.x remains in the NO.sub.x absorbent after the engine has stopped, unreduced NO.sub.x is not released from the NO.sub.x absorbent even if the NO.sub.x absorbent is cooled after the engine has stopped.

    摘要翻译： 废气净化装置包括设置在内燃机的废气通道中的NOx吸收剂。 发动机主要运行在稀薄的空燃比。 当排入NOx吸收剂的排气处于稀薄的空燃比时，NOx吸收剂吸收来自发动机的废气中的NOx，并且当排气的空燃比变为 丰富的空燃比。 提供控制电路用于控制发动机的运转空燃比。 当发动机的点火开关关闭时，控制电路在终止发动机运转之前，继续发动机运转一段预定的时间。 在该发动机运转中，将发动机的运转空燃比控制在较大的空燃比，以向NOx吸收剂供给浓空燃比的排气。 因此，当点火开关关闭时吸收并保持的NOx被释放并由来自发动机的富空燃比废气减少。 由于NOx吸收剂在发动机停止之后保持在NOx吸收剂中不存在NOx的状态，所以即使在发动机停止后NOx吸收剂被冷却，未还原的NOx也不会从NOx吸收剂中释放。

    Apparatus and method for purifying exhaust gas in an internal combustion engine
    80.
    发明授权
    Apparatus and method for purifying exhaust gas in an internal combustion engine 失效
    一种用于净化内燃机废气的装置和方法

    公开(公告)号：US5848529A

    公开(公告)日：1998-12-15

    申请号：US933618

    申请日：1997-09-08

    申请人： Kenji Katoh ,  Masato Gotoh ,  Takamitsu Asanuma

    发明人： Kenji Katoh ,  Masato Gotoh ,  Takamitsu Asanuma

    IPC分类号： F01L1/34 ,  F01N3/08 ,  F01N3/10 ,  F01N3/24 ,  F01N3/28 ,  F02D13/02 ,  F02D41/00 ,  F02D41/02 ,  F02D41/04 ,  F01N3/00

    CPC分类号： F02D13/0215 ,  F01L1/34 ,  F01N3/0842 ,  F02D13/0261 ,  F02D41/0002 ,  F02D41/0275 ,  F01L2201/00 ,  F02D2013/0292 ,  F02D2041/001 ,  Y02T10/18 ,  Y02T10/42

    摘要： An apparatus for, and a method of, purifying exhaust gas emitted from an internal combustion engine reduces fuel consumption under a lean operating condition and generates high torque under a rich operating condition without deteriorating the cleanness of exhaust gas and the driveability of the engine. The apparatus and method improve the durability of a variable valve timing mechanism of the engine. The engine operation involves lean and rich operating conditions. The variable valve timing mechanism of the apparatus changes the open and close timing of at least one of intake and exhaust valves of the engine. The apparatus further has a catalytic converter in an exhaust system, to occlude NOx under the lean operating condition and discharge and reduce the occluded NOx under the rich operating condition. The apparatus also has a prohibition unit for prohibiting the variable valve timing mechanism from changing the valve open and close timing of the valves when the air-fuel ratio of the engine is changed from lean to rich to discharge and reduce the occluded NOx.

    摘要翻译： 用于净化从内燃机排出的废气的装置和方法，在稀薄运行状态下降低燃料消耗，并且在丰富的运行状态下产生高扭矩，而不会降低排气的清洁度和发动机的驱动性。 该装置和方法提高了发动机的可变气门正时机构的耐久性。 引擎操作涉及精益和丰富的操作条件。 该装置的可变气门正时机构改变发动机的进气门和排气门中的至少一个的打开和关闭正时。 该装置还具有排气系统中的催化转化器，以在稀薄运行状态下封闭NOx，并在富运行条件下排放并减少封闭的NOx。 该装置还具有禁止单元，用于当发动机的空燃比从稀燃变为浓度以排出并且减少封闭的NOx时，禁止可变气门正时机构改变阀的开阀和关闭正时。