Catalyst with upstream cooling and downstream heating
    31.
    发明授权
    Catalyst with upstream cooling and downstream heating 失效
    具有上游冷却和下游加热的催化剂

    公开(公告)号:US6029443A

    公开(公告)日:2000-02-29

    申请号:US861292

    申请日:1997-05-21

    摘要: According to the present invention, there is provided an exhaust gas purification device for an engine having an exhaust passage, the device comprising a catalyst arranged in the exhaust passage and having an upstream end and a downstream end, a purification ratio of exhaust gas by the catalyst becoming more than a predetermined ratio when a temperature of the catalyst is within a predetermined temperature range, cooling means for cooling the upstream end of the catalyst, heating means for heating the downstream end of the catalyst, and control means for controlling the cooling means and the heating means to maintain the temperature of a portion of the catalyst, which portion is positioned between the upstream end and the downstream end, in the predetermined temperature range.

    摘要翻译: 根据本发明,提供一种用于具有排气通道的发动机的排气净化装置,该排气净化装置包括布置在排气通道中并具有上游端和下游端的催化剂,排气的净化比由 当催化剂的温度在预定的温度范围内时催化剂变得大于预定的比例,用于冷却催化剂的上游端的冷却装置,用于加热催化剂的下游端的加热装置,以及用于控制冷却装置的控制装置 以及加热装置,将该部分位于上游端和下游端之间的部分催化剂的温度保持在预定温度范围内。

    Exhaust gas purification device for an internal combustion engine
    32.
    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:US5974791A

    公开(公告)日:1999-11-02

    申请号:US28916

    申请日:1998-02-24

    摘要: In an exhaust gas purification device, an exhaust gas passage of a diesel engine diverges into two branch pipes and a particulate filter (DPF) is disposed in each of the branch pipes. The DPF uses a metallic substrate and NO.sub.x absorbent is attached to the wall of the paths in the DPF. Therefore, the DPF act as both a normal particulate filter and a NO.sub.x absorbent. During the operation of the engine, SO.sub.x, as well as NO.sub.x, in the exhaust gas is absorbed in the NO.sub.x absorbent in the DPF. An electronic control unit (ECU) monitors the amount of SO.sub.x absorbed in the DPF during the operation and, when the amount of SO.sub.x absorbed in one DPF increases, switches the exhaust gas flow to the other DPF. The ECU further performs the SO.sub.x recovery operation to release the absorbed SO.sub.x from the DPF. After completing the SO.sub.x recovery operation, the ECU performs the regenerating operation of the DPF in which the particulate matter trapped in the DPF is burned. Since SO.sub.x in DPF is already released by the previous SO.sub.x recovery operation when the regenerating operation of the DPF is performed, the growth of sulfate particle in the DPF does not occur even if the DPF is exposed to a high temperature lean air-fuel ratio atmosphere of the regenerating operation.

    摘要翻译: 在废气净化装置中,柴油发动机的排气通路分叉成两根分支管,在各支管中设置有微粒过滤器(DPF)。 DPF使用金属基材,并且NOx吸收剂附着到DPF中的路径的壁上。 因此,DPF充当正常的微粒过滤器和NOx吸收剂。 在发动机运转中,废气中的SOx以及NOx被DPF中的NOx吸收剂吸收。 电子控制单元(ECU)监视在操作期间在DPF中吸收的SOx的量,并且当在一个DPF中吸收的SOx量增加时,将废气流切换到另一个DPF。 ECU进一步执行SOx恢复操作以从DPF释放吸收的SOx。 在完成SOx恢复操作之后,ECU执行DPF中被捕获的颗粒物质燃烧的DPF的再生操作。 由于在执行DPF的再生操作时,通过先前的SOx回收操作已经释放了DPF中的SOx,所以即使DPF暴露于高温稀空燃比气氛下也不会发生DPF中硫酸盐颗粒的生长 的再生作业。

    Catalyst for purifying exhaust gases and process for producing the same
    33.
    发明授权
    Catalyst for purifying exhaust gases and process for producing the same 失效
    净化废气的催化剂及其制造方法

    公开(公告)号:US5702675A

    公开(公告)日:1997-12-30

    申请号:US571638

    申请日:1995-12-13

    摘要: A catalyst for purifying exhaust gases, which is composed of a catalyst substrate, a first porous support layer supporting barium as a NOx-occluding material and palladium, which is formed on the catalyst support, and a second porous support layer supporting platinum, which is formed on the first porous support layer. Platinum efficiently oxidizes nitrogen monoxide to be converted into nitrogen dioxide. Palladium is supported in a highly dispersed state even after endurance to act as inlet and outlet of barium for nitrogen dioxide or the like, whereby absorption and emission of nitrogen oxides can be performed smoothly, and accordingly, the purification performance for nitrogen oxides is improved.

    摘要翻译: 一种用于净化废气的催化剂,其由催化剂基质,形成在催化剂载体上的作为NOx吸留材料的钡的第一多孔载体层和钯构成,以及第二多孔载体, 形成在第一多孔支撑层上。 铂有效地氧化一氧化氮以转化为二氧化氮。 即使在耐久性之后钯也可以作为二氧化氮等的钡和钡的入口和出口而被支撑在高分散状态,从而可以顺利地进行氮氧化物的吸收和释放,从而提高氮氧化物的净化性能。

    Soundproof type water-cooled engine generator
    34.
    发明授权
    Soundproof type water-cooled engine generator 失效
    隔音式水冷发动机发电机

    公开(公告)号:US5575349A

    公开(公告)日:1996-11-19

    申请号:US323879

    申请日:1994-10-17

    摘要: A soundproof type water-cooled engine generator is constructed to guide an exhaust current of air from a cooling fan of a water-cooled engine to an independent hood-like shroud chamber, deaden the current sound through a muffler located under the shroud chamber, for improving the cooling performance. A water-cooled engine 2 and a generator 3 are accommodated in a soundproof bonnet 1. A panel wall 8 is provided close to a fan 7 equipped in the water-cooled engine. The panel wall serves to partition the soundproof bonnet 1 into an engine and generator chamber 11 and an exhaust processing chamber 12. The panel wall has a hole having the substantially same diameter as the fan 7. Around the outside of the hole, a shroud chamber 17 is independently provided in the exhaust processing chamber. The shroud chamber 17 is formed by a hood-like encircling wall 14. On the lateral side of the shroud chamber, a radiator 13 is located to stand upright. A muffler is located under an exhaust duct chamber 18 so that the exhaust is discharged from the upper portion of the exhaust duct chamber.

    摘要翻译: 隔音式水冷发动机发电机构造成将空气的排气流从水冷发动机的冷却风扇引导到独立的罩状罩室,通过位于护罩室下方的消声器使当前的声音消失, 提高冷却性能。 水冷发动机2和发电机3容纳在隔音发动机罩1中。面板壁8设置在靠近设置在水冷发动机中的风扇7上。 面板壁用于将隔音发动机罩1分隔成发动机和发电机室11和排气处理室12.面板壁具有与风扇7具有基本相同直径的孔。在孔的外部,围绕室 17独立地设置在排气处理室中。 护罩室17由罩状的环绕壁14形成。在护罩室的侧面,散热器13被定位成直立。 消音器位于排气管道室18的下方,从而排气从排气管道室的上部排出。

    Tape loading mechanism for use in magnetic recording/reproducing
apparatus having tape control features for preventing damage to tape
    36.
    发明授权
    Tape loading mechanism for use in magnetic recording/reproducing apparatus having tape control features for preventing damage to tape 失效
    用于磁记录/再现装置的磁带加载机构具有用于防止磁带损坏的磁带控制特征

    公开(公告)号:US5196971A

    公开(公告)日:1993-03-23

    申请号:US801592

    申请日:1991-12-05

    IPC分类号: G11B15/665

    CPC分类号: G11B15/6656

    摘要: First and second tape-pulling members comprise slanted posts and guide rollers adapted for engagement with the tape contained in a tape cassette. By the slanted posts and guide rollers, the first and second tape-pulling members pull the tape out of the tape cassette. Each of the guide rollers includes a tape-winding portion around which the tape is to be wound. First and second holding members are provided at positions where the tape loading by the first and second tape-pulling members is completed. Tape control portions, by which the tape disengaged from the guide rollers are controlled, are formed on the first and second holding members, respectively, such that they are located on the tape-outlet sides of the guide rollers of the first and second tape-pulling members, i.e., on the side closer to a cylinder. Each of the tape control portions is substantially at the same level as the corresponding tape-winding portions of the guide rollers.

    摘要翻译: 第一和第二带牵引构件包括适于与容纳在带盒中的带接合的倾斜柱和导辊。 通过倾斜柱和引导辊,第一和第二拉带构件将带从带盒中拉出。 每个导向辊包括带缠绕部分,磁带缠绕在该磁带卷绕部分上。 第一和第二保持构件设置在第一和第二带拉构件的带装载完成的位置处。 分别在第一和第二保持构件上分别形成有与导向辊分离的带子的带状控制部分,使得它们位于第一和第二带状部分的引导辊的带出口侧上, 拉动构件,即在更靠近气缸的一侧。 每个磁带控制部分基本上与引导辊的相应磁带卷绕部分相同。

    Apparatus for assessing gas odor intensity
    37.
    发明授权
    Apparatus for assessing gas odor intensity 失效
    用于评估气体气味强度的装置

    公开(公告)号:US5149504A

    公开(公告)日:1992-09-22

    申请号:US773439

    申请日:1991-10-09

    申请人: Toshiaki Tanaka

    发明人: Toshiaki Tanaka

    IPC分类号: F02B3/06 G01N27/416

    摘要: A method and apparatus for assessing the odor intensity of combustion gas produced from an internal combustion engine in which the odor intensity of combustion gas is obtained from the pH-value of an aqueous solution prepared from odor-producing substances, based on a predetermined relationship between pH-value and odor intensity. The odor intensity thus obtained strongly correlates with organoleptically evaluated odor intensity. Since the odor intensity of the gas is determined from the pH-value, the precision and the reliability of the odor intensity measurement are enhanced.

    摘要翻译: 一种用于评估由内燃机产生的燃烧气体的气味强度的方法和装置,其中根据由产生气味的物质制备的水溶液的pH值获得燃烧气体的气味强度,基于预定的关系 pH值和气味强度。 由此获得的气味强度与感官评价的气味强度密切相关。 由于根据pH值确定气体的气味强度,所以提高了气味强度测定的精度和可靠性。

    Apparatus for measuring light output from semiconductor light emitting
element
    38.
    发明授权
    Apparatus for measuring light output from semiconductor light emitting element 失效
    用于测量来自半导体发光元件的光输出的装置

    公开(公告)号:US5065007A

    公开(公告)日:1991-11-12

    申请号:US571158

    申请日:1990-08-23

    申请人: Toshiaki Tanaka

    发明人: Toshiaki Tanaka

    摘要: A first ohmic electrode of a light emitting diode is put into contact with an electrode plate, and a second ohmic electrode of the same is put into contact with a mesh electrode formed by a metal net. The mesh electrode is mounted on a light receiving surface of the light receiving element. When a predetermined amount of current is supplied from a power source to the mesh electrode and electrode plate, light is emitted from that portion of the light emitting diode located around the second ohmic electrode, and the light passes through the spaces of the mesh electrode, then being received by the light receiving element. The light receiving element supplies an electric signal indicative of the light to a measuring circuit, whereby the output of the light emitting diode is measured.