Process and device for local and controlled regeneration of a particle filter
    1.
    发明授权
    Process and device for local and controlled regeneration of a particle filter 失效
    颗粒过滤器的局部和可控再生的工艺和装置

    公开(公告)号:US06176896B1

    公开(公告)日:2001-01-23

    申请号:US09301602

    申请日:1999-04-29

    IPC分类号: B01D3518

    摘要: A process and device for local permeability evaluation and local regeneration of a particle filter consisting of several juxtaposed zones through which a flow of gas to be scrubbed is passed include the steps of and apparatus for measuring the temperature of the flow upstream from the filter, measuring the temperature in at least one of the zones forming the filter, evaluating the thermal inertia of at least one of the zones by relative measurement of the temperature or of the local resistance to the temperature upstream from the filter, deducing from this the local permeability of the filter and locally regenerating the filter.

    摘要翻译: 一种用于局部渗透性评估和局部再生的颗粒过滤器的过程和装置,该颗粒过滤器由几个平行的区域组成,通过该区域通过待擦洗的气体流,包括用于测量过滤器上游流动温度的步骤和装置, 形成过滤器的至少一个区域中的温度,通过相对测量温度或对过滤器上游温度的局部阻力来评估至少一个区域的热惯性,从此推断出该区域的局部渗透率 过滤器和本地再生过滤器。

    Exhaust gas filtering process and unit with modulable heating
    4.
    发明授权
    Exhaust gas filtering process and unit with modulable heating 失效
    废气过滤过程和可加热的单元

    公开(公告)号:US6090172A

    公开(公告)日:2000-07-18

    申请号:US968126

    申请日:1997-11-12

    摘要: The present invention is a filtering unit providing after-treatment of the gases emited in the exhaust of Diesel engines, comprising a filtering set which includes at least one filtering element (11, 12, 13); at least one resistive element (3) which heats a zone (121, 122, 123) of one of the at least one filtering element; at least one detection device which determines fouling of the filtering set (1); a control (5), responsive to the at least one detection device, which controls independently each of the resistive elements, according to the fouling of the filtering set and electrical power available to the at least one resistive element. The resistive elements (3) can be each wound around a zone of a filtering element. The invention further relates to the associated process.

    摘要翻译: 本发明是提供柴油发动机排气中产生的气体的后处理的过滤单元,包括至少一个过滤元件(11,12,13)的过滤组件。 至少一个电阻元件(3),其加热所述至少一个过滤元件中的一个的区域(121,122,123); 至少一个检测装置,其确定过滤装置(1)的结垢; 控制器(5),响应于至少一个检测装置,其独立地控制每个电阻元件,根据滤波器组的结垢和对于至少一个电阻元件可用的电力。 电阻元件(3)可以各自缠绕在过滤元件的区域周围。 本发明还涉及相关联的方法。

    Process and assembly for eliminating nitrogen oxides present in exhaust
gas, using nitrogen oxides trapping means
    5.
    发明授权
    Process and assembly for eliminating nitrogen oxides present in exhaust gas, using nitrogen oxides trapping means 失效
    使用氮氧化物捕集装置消除废气中存在的氮氧化物的工艺和组装

    公开(公告)号:US6018943A

    公开(公告)日:2000-02-01

    申请号:US97809

    申请日:1998-06-16

    摘要: A process and an assembly for eliminating nitrogen oxides (NO.sub.x) present in the exhaust gas of a lean-burn diesel or spark-ignition engine, is part of the exhaust line coming from the engine. At least one nitrogen oxides conversion catalyst is placed in the main exhaust line the catalysts having non-coinciding temperature ranges for which the NO.sub.x conversion is below a certain conversion coefficient (C.sub.min). At least one NO.sub.x trap placed upstream is the conversion catalyst(s) and intended to trap, then to release the nitrogen oxides. At least one line bypassing the main exhaust line contains at least one of the NO.sub.x trap(s); and at least one valve intended to modulate the flow of gas between the bypass line and the main exhaust line is provided so that the NO.sub.x trap(s) can trap the nitrogen oxides, notably when conversion catalyst(s) have a conversion coefficient below a predetermined value (C.sub.min) and so that said the NO.sub.x trap(s) means (4) can release the nitrogen oxides simultaneously with a conversion.

    摘要翻译: 用于消除存在于稀燃柴油或火花点火发动机的废气中的氮氧化物(NOx)的方法和组件是来自发动机的排气管线的一部分。 在主排气管中放置至少一种氮氧化物转化催化剂,其中NOx转化率低于某一转化系数(Cmin)的非重合温度范围的催化剂。 放置在上游的至少一个NOx捕集剂是转化催化剂并且旨在捕获,然后释放氮氧化物。 绕过主排气管线的至少一条线路包含至少一个NOx收集器; 并且提供旨在调节旁路管线和主排气管线之间的气体流的至少一个阀,使得NOx捕集器可捕获氮氧化物,特别是当转化催化剂的转化系数低于 预定值(Cmin),使得所述NOx捕集装置(4)能够在转化的同时释放氮氧化物。

    Process and assembly for eliminating nitrogen oxides present in exhaust
gas, using a heat exchanger
    6.
    发明授权
    Process and assembly for eliminating nitrogen oxides present in exhaust gas, using a heat exchanger 失效
    使用热交换器消除废气中存在的氮氧化物的工艺和组装

    公开(公告)号:US6009703A

    公开(公告)日:2000-01-04

    申请号:US94633

    申请日:1998-06-15

    摘要: The present invention relates to a process and to an assembly for eliminating nitrogen oxides present in the exhaust gas of an internal-combustion engine (1), said assembly being part of the exhaust line (2) coming from the engine and comprising:a nitrogen oxides conversion means,a heat exchanger (4) placed in a bypass line (5) situated upstream from conversion means (3), intended to cool said exhaust gas.According to the invention, the conversion means comprises several catalysts (3) placed in main exhaust line (2), said catalyst(s) having non-coinciding temperature ranges for which conversion of the nitrogen oxides is below a certain threshold (C.sub.min). Furthermore, at least one valve (6) is placed at the inlet of bypass line (5) and intended to modulate the flow of gas between said bypass line (5) and main line (2) so that said exhaust gas reaches catalysts (3) at a temperature where at least one of said catalysts is active.

    摘要翻译: 本发明涉及用于消除内燃机(1)的排气中存在的氮氧化物的方法和组件,所述组件是来自发动机的排气管线(2)的一部分,包括:氮气 氧化物转化装置,设置在位于转换装置(3)上游的旁通管线(5)中的热交换器(4),用于冷却所述废气。 根据本发明,转化装置包括放置在主排气管线(2)中的若干催化剂(3),所述催化剂具有不相符的温度范围,氮氧化物的转化率低于某一阈值(Cmin)。 此外,至少一个阀(6)被放置在旁路管线(5)的入口处,并且用于调节所述旁路管线(5)和主管线(2)之间的气体流,使得所述排气到达催化剂(3) ),其中至少一种所述催化剂是活性的。

    Method and device for forming porous metal parts by sintering
    7.
    发明授权
    Method and device for forming porous metal parts by sintering 失效
    通过烧结形成多孔金属部件的方法和装置

    公开(公告)号:US06674042B1

    公开(公告)日:2004-01-06

    申请号:US09979063

    申请日:2002-03-01

    IPC分类号: B23K1100

    摘要: A process for forming metal components of controlled porosity by welding, in which a predetermined amount of metal elements (50) of oblong shape is introduced into a mold (10) in which it is distributed isotropically. The metal elements are then subjected to increasing pressure (P) until the component has its final shape. The walls of the mold are then held in position and an electric current (I) flows through the metal elements and welds them together by local melting at the points of contact due to the Joule effect.

    摘要翻译: 通过焊接形成控制孔隙度的金属成分的方法,其中将预定量的长方形的金属元素(50)引入到各向同性地分布的模具(10)中。 然后将金属元件施加增加的压力(P),直到该组件具有其最终形状。 然后将模具的壁保持就位,并且电流(I)流过金属元件,并且由于焦耳效应在接触点处通过局部熔化将它们焊接在一起。

    Process for controlled injection of hydrocarbons into an exhaust line of an internal-combustion engine
    8.
    发明授权
    Process for controlled injection of hydrocarbons into an exhaust line of an internal-combustion engine 失效
    用于将碳氢化合物控制注入内燃机的排气管线的方法

    公开(公告)号:US06327851B1

    公开(公告)日:2001-12-11

    申请号:US09301603

    申请日:1999-04-29

    IPC分类号: F01N300

    摘要: The present invention relates to a process for controlled injection of hydrocarbons into an exhaust line of a lean-burn internal-combustion engine, comprising catalytic elimination of the nitrogen oxides. The process according to the invention consists in injecting a certain amount of hydrocarbons upstream from the catalytic elimination, periodically and for a short time interval, by means of pulsed hydrocarbon injections. The frequency and the amplitude of the hydrocarbon pulses are preferably controlled according to the running conditions of the engine.

    摘要翻译: 本发明涉及一种用于将碳氢化合物控制注入稀燃内燃机的排气管线的方法,包括催化消除氮氧化物。根据本发明的方法是将一定量的烃向上游注入 通过脉冲烃注射定期和短时间间隔地进行催化消除。烃脉冲的频率和振幅优选根据发动机的运行条件来控制。

    Formation of deep hollow areas and use thereof in the production of an optical recording medium
    9.
    发明授权
    Formation of deep hollow areas and use thereof in the production of an optical recording medium 失效
    形成深中空区域及其在制造光记录介质中的用途

    公开(公告)号:US08263317B2

    公开(公告)日:2012-09-11

    申请号:US12312925

    申请日:2007-12-04

    IPC分类号: C23F1/00

    CPC分类号: G11B7/261

    摘要: At least one hollow zone is formed in a stack of at least one upper layer and one lower layer. The upper layer is patterned to form at least a first hollow region passing through said upper layer. The first hollow region is extended by a second hollow region formed in the lower layer by etching through an etching mask formed on the patterned upper layer. The etching mask is formed by a resin layer, positively photosensitive to an optic radiation of a predetermined wavelength, exposed to the said optic radiation through the stack and developed. The lower and upper layers of the stack are respectively transparent and opaque to said predetermined wavelength so that the patterned upper layer acts as exposure mask for the resin layer.

    摘要翻译: 至少一个中空区形成在至少一个上层和一个下层的堆叠中。 上层被图案化以形成穿过所述上层的至少第一中空区域。 通过在图案化的上层上形成的蚀刻掩模进行蚀刻,第一中空区域被形成在下层中的第二中空区域延伸。 蚀刻掩模由树脂层形成,对预定波长的光学辐射具有积极的光敏性,通过叠层暴露于所述光学辐射并显影。 堆叠的下层和上层分别对于所述预定波长是透明的和不透明的,使得图案化的上层用作树脂层的曝光掩模。

    Process and device intended for nitrogen oxides elimination in an exhaust line of an internal-combustion engine
    10.
    发明授权
    Process and device intended for nitrogen oxides elimination in an exhaust line of an internal-combustion engine 有权
    用于在内燃机的排气管线中消除氮氧化物的方法和装置

    公开(公告)号:US06508057B1

    公开(公告)日:2003-01-21

    申请号:US09457260

    申请日:1999-12-09

    IPC分类号: F01N300

    摘要: A device for eliminating nitrogen oxides in an exhaust line of a lean-burn internal-combustion engine (1) a NOx trap (3) for trapping the nitrogen oxides, a system for regenerating the nitrogen oxides when the NOx trap is saturated, a hydrocarbon treating catalyst (2) placed upstream from the NOx trap (3), a hydrocarbon injector (4) placed upstream from hydrocarbon treating catalyst (2), a probe (7) for measuring the gas mixture strength. The hydrocarbon treating catalyst (2) is a partial (or controlled) hydrocarbon oxidation catalyst that cooperates with the NOx trap (3) for trapping the nitrogen oxides and that allows to obtain, at the outlet thereof, gases with a low oxygen (O2) concentration and with high carbon monoxide (CO) and hydrogen (H2) concentrations. A control unit is furthermore provided for recording and processing data coming from various detectors and/or stored in order to carry out effective regeneration of the NOx trap (3) without disrupting the smooth running of the engine.

    摘要翻译: 一种用于消除稀燃内燃机(1)的排气管中的氮氧化物的装置,用于捕获氮氧化物的NOx捕集器(3),当NOx捕集器饱和时再生氮氧化物的系统, 处理催化剂(2),放置在NOx捕集器(3)的上游,位于烃处理催化剂(2)上游的烃喷射器(4),用于测量气体混合物强度的探针(7)。烃处理催化剂(2) 是与NOx捕集器(3)配合以捕获氮氧化物的部分(或受控)烃氧化催化剂,并且允许在出口处获得具有低氧(O 2)浓度和高一氧化碳的气体 CO)和氢(H 2)浓度。此外还提供用于记录和处理来自各种检测器和/或存储的数据的控制单元,以便在不中断e的平稳运行的情况下进行NOx捕集器(3)的有效再生 ngine。