Catalyst for purifying exhaust gases and process for purifying exhaust
gases
    2.
    发明授权
    Catalyst for purifying exhaust gases and process for purifying exhaust gases 失效
    净化废气的催化剂和净化废气的过程

    公开(公告)号:US5575983A

    公开(公告)日:1996-11-19

    申请号:US311360

    申请日:1994-09-23

    摘要: A process for purifying an exhaust gas comprising carbon monoxide, hydrocarbons, nitrogen oxides, and sulfur oxides by periodically adjusting exhaust gas conditions from lean-burn to fuel-rich and by using a catalyst comprising an alumina support with lithium dissolved therein to form a solid solution, at least one first ingredient selected from the group consisting of platinum and palladium loaded on the alumina support, and at least one second ingredient selected from the group consisting of alkali elements, alkaline-earth elements, and rare-earth elements loaded on the support. Sulfates formed from sulfur oxides in the exhaust gas are decomposed by the lithium under the fuel-rich conditions to inhibit the alumina support from being acidified.

    摘要翻译: 通过周期性地调节从贫燃到富燃料的废气条件和通过使用包含溶解有锂的氧化铝载体的催化剂以形成固体来净化包含一氧化碳,烃,氮氧化物和硫氧化物的废气的方法 溶液,选自负载在氧化铝载体上的铂和钯的至少一种第一成分和选自负载在氧化铝载体上的碱金属元素,碱土金属元素和稀土元素的至少一种第二成分 支持。 在废气中由硫氧化物形成的硫酸盐在富燃料条件下被锂分解,以抑制氧化铝载体的酸化。

    Method for purifying exhaust gases with two layer catalyst in
oxygen-rich atmosphere
    3.
    发明授权
    Method for purifying exhaust gases with two layer catalyst in oxygen-rich atmosphere 失效
    在富氧气氛中用双层催化剂净化废气的方法

    公开(公告)号:US5849254A

    公开(公告)日:1998-12-15

    申请号:US625922

    申请日:1996-04-01

    IPC分类号: B01D53/94 B01D53/60 C01K1/34

    摘要: A catalyst for purifying exhaust gases which aims to efficiently purify NO.sub.x in exhaust gases in oxygen-rich atmospheres whose oxygen concentrations are more than required for oxidizing CO and HC, and to attain improved NO.sub.x purifying performance after used for a long time. The catalyst comprises, being arranged in an order from the upstream to the downstream of exhaust gas flow, a first catalyst 1 in which a noble metal catalyst 12 is loaded on a porous acidic support, a second catalyst 2 in which at least one kind of metal 22 selected from the group consisting of alkali metals, alkaline-earth metals, and rare earth metals is loaded on a porous support, and a third catalyst 3 in which a noble metal catalyst 32 is loaded on a porous support. Since SO.sub.2 is not adsorbed or oxidized by the first catalyst 1, SO.sub.2 is discharged downstream from the second catalyst 2 without generating sulfate. Therefore, since the NO.sub.x absorber is free from degradation even after used for a long time, the second catalyst 2 maintains high NO.sub.x adsorbing performance on the fuel-lean side, and the third catalyst 3 reduces NO.sub.x which are emitted from the second catalyst 2 on the stoichiometric point or on the fuel-rich side.

    摘要翻译: 一种用于净化废气的催化剂,其目的是有效地净化氧浓度超过氧化CO和HC所需氧浓度的富氧气氛中的废气中的NOx,并且在长时间使用后获得改善的NOx净化性能。 该催化剂包括从排气流的上游到下游的顺序排列有第一催化剂1,其中贵金属催化剂12装载在多孔酸性载体上,第二催化剂2,其中至少一种 将由碱金属,碱土金属和稀土类金属组成的组中选择的金属22负载在多孔载体上,在其上添加贵金属催化剂32的第三催化剂3。 由于SO 2不被第一催化剂1吸附或氧化,所以在不产生硫酸盐的情况下将SO 2从第二催化剂2的下游排出。 因此,即使长时间使用NOx吸收剂也不会劣化,所以第二催化剂2在燃料贫乏侧保持高的NOx吸附性能,第三催化剂3还原从第二催化剂2排出的NOx, 化学计量点或富燃料侧。

    Catalyst for purifying exhaust gases
    4.
    发明授权
    Catalyst for purifying exhaust gases 失效
    废气净化催化剂

    公开(公告)号:US06217831B1

    公开(公告)日:2001-04-17

    申请号:US08909049

    申请日:1997-08-11

    IPC分类号: B01D5360

    摘要: A catalyst for purifying exhaust gases which aims to efficiently purify NOx in exhaust gases in oxygen-rich atmospheres whose oxygen concentrations are more than required for oxidizing CO and HC, and to attain improved NOx purifying performance after used for a long time. The catalyst includes, being arranged in an order from the upstream to the downstream of exhaust gas flow, a first catalyst 1 in which a noble metal catalyst 12 is loaded on a porous acidic support, a second catalyst 2 in which at least one kind of metal 22 selected from the group consisting of alkali metals, alkaline-earth metals, and rare earth metals is loaded on a porous support, and a third catalyst 3 in which a noble metal catalyst 32 is loaded on a porous support. Since SO2 is not adsorbed or oxidized by the first catalyst 1, SO2 is discharged downstream from the second catalyst 2 without generating sulfate. Therefore, since the NOx absorber is free from degradation even after used for a long time, the second catalyst 2 maintains high NOx adsorbing performance on the fuel-lean side, and the third catalyst 3 reduces NOx which are emitted from the second catalyst 2 on the stoichiometric point or on the fuel-rich side.

    摘要翻译: 一种用于净化废气的催化剂,其目的是有效地净化氧浓度超过氧化CO和HC所需氧浓度的富氧气氛中的废气中的NOx,并且在长时间使用后获得改善的NOx净化性能。 催化剂包括从排气流的上游到下游的顺序排列有第一催化剂1,其中贵金属催化剂12负载在多孔酸性载体上,第二催化剂2,其中至少一种 将由碱金属,碱土金属和稀土类金属组成的组中选择的金属22负载在多孔载体上,在其上添加贵金属催化剂32的第三催化剂3。 由于SO 2不被第一催化剂1吸附或氧化,所以在不产生硫酸盐的情况下将SO 2从第二催化剂2的下游排出。 因此,即使长时间使用NOx吸收剂也不会劣化,所以第二催化剂2在燃料贫乏侧保持高NOx吸附性能,第三催化剂3将从第二催化剂2排出的NOx还原 化学计量点或富燃料侧。

    Method for purifying exhaust gases
    5.
    发明授权
    Method for purifying exhaust gases 失效
    排气净化方法

    公开(公告)号:US5804152A

    公开(公告)日:1998-09-08

    申请号:US551918

    申请日:1995-10-23

    IPC分类号: B01D53/94 B01J23/58 B01J23/63

    摘要: An automotive exhaust catalyst includes a support, which is less likely to adsorb SO.sub.x contained in exhaust gases thereon, an NO.sub.x storage compound loaded on the support, and a noble metal element loaded on the support. The support is an alumina support with a Ti--Zr composite oxide loaded thereon, or is formed of a Ti--Zr or Ti--Zr--Y composite oxide. The composite oxide inhibits the NO.sub.x storage compound, which is selected from alkali metals, alkaline-earth metals and rare-earth elements, from being poisoned by sulfur, and enhances the thermal resistance of the support. Thus, the automotive exhaust catalyst can effectively purify NO.sub.x contained in lean-side exhaust gases, even after it is subjected to a thermal durability test.

    摘要翻译: 汽车尾气催化剂包括不太可能吸附其中排出的SO x的载体,负载在载体上的NOx储存化合物和负载在载体上的贵金属元素。 载体是负载有Ti-Zr复合氧化物的氧化铝载体,或由Ti-Zr或Ti-Zr-Y复合氧化物形成。 复合氧化物抑制从碱金属,碱土金属和稀土元素中选择的NOx储存化合物被硫中毒,提高了载体的耐热性。 因此,即使进行耐热试验,汽车尾气催化剂也能够有效地净化稀薄侧排气中所含的NOx。

    LIGHT SOURCE DEVICE, DISPLAY DEVICE, AND ELECTRONIC APPARATUS
    9.
    发明申请
    LIGHT SOURCE DEVICE, DISPLAY DEVICE, AND ELECTRONIC APPARATUS 审中-公开
    光源装置,显示装置和电子装置

    公开(公告)号:US20130120474A1

    公开(公告)日:2013-05-16

    申请号:US13667517

    申请日:2012-11-02

    IPC分类号: G02F1/01 G09G5/10 F21V8/00

    摘要: Disclosed is a display device including a display section configured to display an image and a light source device for emitting light for displaying the image to the display section. The light source device includes a first light source for applying first illumination light, and a light guide plate having a plurality of scattering areas, the light guide plate emitting the first illumination light applied from a direction of a side of the light guide plate to an outside by scattering the first illumination light in the plurality of scattering areas, and a light scattering characteristic is added to the scattering areas by forming a plurality of depression and projection shapes in surfaces of the scattering areas or dispersing a light scattering material in the scattering areas, and density of the depression and projection shapes or concentration of the light scattering material in the scattering areas changes according to position.

    摘要翻译: 公开了一种显示装置,包括被配置为显示图像的显示部分和用于将显示图像的光发射到显示部分的光源装置。 光源装置包括用于施加第一照明光的第一光源和具有多个散射区域的导光板,所述导光板将从导光板的一侧的方向施加的第一照明光发射到 通过散射多个散射区域中的第一照明光,通过在散射区域的表面中形成多个凹凸形状而将散射特性附加到散射区域,或者将散射光散射到散射区域 ,并且散射区域中的凹陷和突起形状或光散射材料的浓度的密度根据位置而变化。

    Fuel supply device for internal combustion engine and control device for the fuel supply device
    10.
    发明授权
    Fuel supply device for internal combustion engine and control device for the fuel supply device 有权
    用于内燃机的燃料供应装置和用于燃料供应装置的控制装置

    公开(公告)号:US08122871B2

    公开(公告)日:2012-02-28

    申请号:US12518281

    申请日:2007-12-18

    IPC分类号: F02M37/08 F02M37/00

    摘要: A fuel supply device has a main line, a fuel pump, a first return line, a second return line, a valve mechanism, a first pressure regulator, and a second pressure regulator. The fuel pump pressurizes the fuel in the fuel tank and supplies the fuel to a fuel distribution pipe via the main line. The first return line returns the fuel from the fuel distribution pipe to the fuel tank. The second return line is branched from the main line and returns the fuel from the main line to the fuel tank. The valve mechanism selectively connects and disconnects the second return line with respect to the main line. The first pressure regulator is arranged in the first return line. The second pressure regulator is provided in the second return line and adjusts fuel pressure to a lower level than the first pressure regulator does.

    摘要翻译: 燃料供给装置具有主线,燃料泵,第一回流管,第二回流管,阀机构,第一压力调节器和第二压力调节器。 燃料泵对燃料箱中的燃料加压,并通过主管将燃料供给燃料分配管。 第一返回线将燃料从燃料分配管返回到燃料箱。 第二返回线从主线分支并将燃料从主线返回到燃料箱。 阀机构相对于主线选择性地连接和断开第二返回线。 第一压力调节器布置在第一返回管线中。 第二压力调节器设置在第二返回管线中,并且将燃料压力调节到比第一压力调节器低的水平。