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    • 1. 发明公开
    • EXHAUST GAS DILUTION DEVICE AND EXHAUST GAS MEASURING SYSTEM USING THE SAME
    • 排气减压装置和使用该装置的排气测量系统
    • EP3179227A1
    • 2017-06-14
    • EP16200779.3
    • 2016-11-25
    • HORIBA, LTD.
    • KUMAGAI, Tatsuki
    • G01N1/22
    • F01N11/007F01N13/008F01N13/082F01N2550/14G01M15/102G01N1/2252G01N2001/2255
    • In order to provide an exhaust gas dilution device 100 capable of making a flow rate range wider than before, the exhaust gas dilution device 100 is adapted to include: a dilution tunnel 2 through which diluent gas such as air flows; an orifice member 51 adapted to block the dilution tunnel 2 except for an orifice hole 5a provided in a central part; and an exhaust gas introduction pipe 1 of which a discharge port 1a is disposed so as to face to the orifice hole 5a and face to a downstream side and through which exhaust gas is discharged from the discharge port 1a into the dilution tunnel 2. In addition, in the exhaust gas dilution device 100, the orifice member 51 is formed with a concave part S that is gradually concaved from an outer circumferential edge part toward the orifice hole 5a as viewed from an upstream side.
    • 为了提供能够使流速范围比以前更宽的废气稀释装置100,废气稀释装置100适于包括:稀释通道2,诸如空气等稀释气体流过的稀释通道2; 除了设置在中央部分的节流孔5a以外,用于堵塞稀释通道2的节流孔部件51; 以及排气口导入管1,排气口1a设置成面对孔口5a并面向下游侧,并且排气从排气口1a排出到稀释通道2中。另外, 在排气稀释装置100中,从上游侧观察时,孔构件51形成有从外周端部朝向节流孔5a逐渐凹陷的凹部S.
    • 6. 发明公开
    • EXHAUST GAS DILUTION DEVICE
    • 排气稀释装置
    • EP2857823A4
    • 2016-02-24
    • EP13797667
    • 2013-04-17
    • HORIBA LTD
    • ASAMI TETSUJITAKAKURA YOSHITOMO
    • G01N1/22G01M15/10G01N33/00
    • G01N1/2252G01M15/102G01N33/0018G01N33/0022G01N2001/2255
    • The present invention is intended that diluted exhaust gas is supplied to a plurality of measurement instruments by a single exhaust gas dilution device to thereby reduce in size an exhaust gas measurement system incorporated with the exhaust gas dilution device and dilute exhaust gas with the same exhaust gas under the same dilution condition in the plurality of measurement instruments. And the present invention is provided with: a sampling port 2 which is connected with a sampling line L1; a dilution air supply port 3 which is connected with a dilution air supply line L2; a diluter 4 for diluting a sample gas with dilution air; a main flow path 5 through which the diluted exhaust gas flows; a plurality of measurement instrument ports 7a-7c which are connected with measurement instrument lines L3a-L3c having measurement instruments 9a-9c including a PM measurement instrument and an exhaust gas measurement instrument; a plurality of branching flow rate adjustment mechanisms 10a-10c for adjusting a flow rate of the diluted exhaust gas flowing through each of branching flow paths 71a-71c; and a control device 8 for controlling the plurality of branch flow rate adjusting mechanisms 10a-10c on the basis of the flow rate of the exhaust gas flowing through an exhaust pipe EH.
    • 8. 发明公开
    • INTELLIGENT BAG FILLING FOR EXHAUST SAMPLING SYSTEM
    • 用于排气采样系统的智能袋填充
    • EP2856103A1
    • 2015-04-08
    • EP13796678.4
    • 2013-05-28
    • AVL Test Systems, Inc.
    • SILVIS, William MartinWILLIAMSON, James Patrick
    • G01N1/22G01M15/10
    • G01N1/2252G01M15/10G01N33/0018G01N33/0027G01N2001/2255
    • An exhaust sampling system for an engine is provided. The exhaust sampling system may include a source of exhaust gas, an exhaust collection unit including at least one collection bag that selectively receives the exhaust gas, and a first sample probe in fluid communication with the source of exhaust gas that selectively supplies the at least one collection bag with the exhaust gas. The exhaust sampling system may also include a controller that permits flow of the exhaust gas from the first sample probe to the at least one collection bag in a first state and prevents flow of the exhaust gas from the first sample probe to the at least one collection bag in a second state. The controller may determine an extraction rate of the first sample probe based on an ON time of the engine during a sampling period.
    • 提供了一种用于发动机的排气采样系统。 所述排气采样系统可以包括排气源,排气收集单元,所述排气收集单元包括选择性地接收所述排气的至少一个收集袋以及与所述排气源流体连通的第一样品探针,所述第一样品探针选择性地供应所述至少一个 与废气收集袋。 排气采样系统还可以包括控制器,该控制器允许排气在第一状态下从第一样品探针流动到至少一个收集袋并且防止排气从第一样品探针流动到至少一个集合 袋子处于第二状态。 控制器可以基于采样周期期间发动机的接通时间来确定第一样本探针的提取速率。