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    • 3. 发明授权
    • Exhaust gas purifying apparatus
    • 废气净化装置
    • US5765369A
    • 1998-06-16
    • US508090
    • 1995-07-27
    • Masakazu TanakaHiroshi MoriMamoru MabuchiHiroyuki UsamiKinji Hodaira
    • Masakazu TanakaHiroshi MoriMamoru MabuchiHiroyuki UsamiKinji Hodaira
    • B01D53/94F01N3/08F01N11/00F01N3/28
    • F01N3/0835B01D53/9495F01N11/00F01N11/002F01N3/0814F01N3/0871F01N3/0878F01N2250/12F01N2370/24F01N2410/00F01N2410/12F01N2510/063F01N2550/00F01N2550/03F01N2900/0422Y02T10/47
    • An exhaust gas purifying apparatus with a failure diagnosis function is provided. A failure diagnosis device determines that the apparats is failed when the temperature rising speed of an adsorbing device is equal to a set value or less during a gas adsorption process and if the temperature rising speed is equal to an upper limit or more or to a lower limit or less during a gas desorption process. Further, a failure diagnosis device similarly monitors the flow passing through the adsorbing device. A failure diagnosis device determines that the apparatus is failed if the concentration of discharge gas is equal to a set value or more in a discharge passage. And further, a failure diagnosis device measures the concentration of discharge gas flowing through a return passage to accumulate the amount of discharge gas in order to determine that the apparatus is failed if the accumulated value is equal to a set value or less. Exhaust gas sensors are installed in the return passage and the upstream side of the adsorbing device, respectively, and the period of time te from the activation of the return passage until the outputs from the exhaust gas sensors match or a correlation coefficient for these outputs is measured to diagnose failures in the apparatus.
    • 提供具有故障诊断功能的废气净化装置。 在气体吸附过程中,当吸附装置的升温速度等于设定值以下时,故障诊断装置判定为不合格,如果升温速度等于或等于上限或更低 在气体解吸过程中极限或更小。 此外,故障诊断装置同样监视通过吸附装置的流量。 如果放电气体的浓度等于排出通道中的设定值以上,则故障诊断装置判定装置发生故障。 此外,故障诊断装置测量流过返回通道的排出气体的浓度以累积排出气体的量,以便如果累积值等于设定值或更小,则确定设备失效。 废气传感器分别安装在吸附装置的返回通道和上游侧,并且从返回通道的激活直到排气传感器的输出匹配的时间段或这些输出的相关系数是 测量以诊断设备中的故障。
    • 4. 发明授权
    • Exhaust pipe opening and closing apparatus
    • 排气管开闭装置
    • US5634333A
    • 1997-06-03
    • US524941
    • 1995-09-08
    • Masakazu TanakaHiroyuki UsamiMamoru MabuchiTatsuo SakaiKinji Hodaira
    • Masakazu TanakaHiroyuki UsamiMamoru MabuchiTatsuo SakaiKinji Hodaira
    • F02D9/04F01N3/20F01N3/24F01N13/02F16K1/20F16K31/165F01N3/00F01N3/10
    • F01N3/2053F01N13/009F01N3/2013F16K1/2007F16K1/2028F16K31/1655F01N2410/00Y02T10/26
    • In an automotive engine exhaust pipe having a main flow passage and a bypass flow passage, the exhaust gas flows through the bypass flow passage having an heater-provided catalyst when an engine starts. After a main catalyst reaches a catalytic activation temperature, a switching valve switches the exhaust gas to flow through the main flow passage. The main shaft is divided into a driven shaft inserted into a bearing hole and a driving shaft inserted into another bearing hole, and therefore, a total length thereof in an axial direction is shorter than a length of the main shaft without having segments. Therefore, even though the driven shaft and the driving shaft are deformed into the arch shape, a deformation amount thereof is reduced so that inner peripheries of the bearing holes are not rubbed against the shafts. Since the driving shaft is smaller in diameter than the driven shaft, even though a cross section of the driving shaft is elliptically strained, the inner periphery of the bearing hole is not rubbed against the driving shaft. As a result, since a clearance between the driving shaft and the bearing hole can be narrowed, the exhaust gas from the clearance can be prevented from leaking.
    • 在具有主流路和旁通流路的汽车发动机排气管中,当发动机起动时,排气通过具有加热器的催化剂的旁通流路流动。 在主催化剂达到催化活化温度之后,切换阀切换排气流过主流道。 主轴分为插入轴承孔的从动轴和插入另一个轴承孔的驱动轴,因此其轴向的总长度短于不具有段的主轴的长度。 因此,即使从动轴和驱动轴变形为拱形,其变形量也减小,使得轴承孔的内周不会摩擦轴。 由于驱动轴的直径小于从动轴的直径,即使驱动轴的横截面是椭圆形的,轴承孔的内周也不会摩擦驱动轴。 结果,由于驱动轴和轴承孔之间的间隙可以变窄,所以能够防止来自间隙的废气泄漏。