公开(公告)号：US20120304738A1

公开(公告)日：2012-12-06

申请号：US13578887

申请日：2011-02-24

申请人： Jan Landkammer

发明人： Jan Landkammer

IPC分类号： G01M15/10

CPC分类号： G01N15/0656 ,  F01N13/008 ,  G01N1/2252 ,  G01N27/4077 ,  G01N2001/244 ,  G01N2015/0046

摘要： A new apparatus for monitoring fine particle concentration in an exhaust system of a combustion engine has a part that extends into the exhaust system, and a housing that includes structure that attaches and seals the apparatus to the exhaust system through a single opening in a wall of the exhaust system. A gas inlet in the housing provides a measurement flow into a particle measurement sensor inside the housing. At least a fraction of the particles entering the particle measurement sensor are charged, and at least a fraction of the current carried by the charged particles are detected. A gas outlet in the housing carries the measurement flow away from the particle measurement sensor. The structure that attaches the apparatus to the exhaust system has one electrical connector that provides power to the sensor, and another electrical connector that transmits the electrical signal created by the sensor.

摘要翻译： 用于监测内燃机排气系统中的细粒子浓度的新装置具有延伸到排气系统中的部分，以及壳体，其包括通过单独的开口将装置附接并密封到排气系统的结构， 排气系统。 壳体中的气体入口提供了到壳体内的颗粒测量传感器的测量流量。 进入颗粒测量传感器的至少一部分颗粒被充电，并且检测由带电粒子携带的电流的至少一部分。 壳体中的气体出口将测量流离开粒子测量传感器。 将装置附接到排气系统的结构具有向传感器提供电力的一个电连接器和传递由传感器产生的电信号的另一个电连接器。

公开(公告)号：US20010045136A1

公开(公告)日：2001-11-29

申请号：US09923409

申请日：2001-08-08

申请人： Honda Giken Kogyo Kabushiki Kaisha

发明人： Noriyuki Hanashiro ,  Atsushi Shibata ,  Kyoshuke Sasaki ,  Mamoru Matsuyama ,  Keisuki Obara ,  Shigeru Yanagihara ,  Shuta Yamawaki

IPC分类号： G01N001/00

CPC分类号： G01N1/2258 ,  G01N1/2252 ,  G01N2001/2261 ,  G01N2001/2282 ,  G01N2001/244

摘要： A storage box 100, on the bottom surface of which are attached casters 101, has a heater 102 positioned on the bottom surface thereof and left-hand side and the right-hand side interior spaces being divided by a partition plate 103, wherein nine (9) sampling bags 104 . . . in total can be received within a wide space at the right-hand side thereof. On one side of the storage box 100 is provided a connector unit 110. This connector unit 110 is constructed with an elevating block 112 hooking on guide rails provided in a direction of up and down, and the elevating block 112 is biased upward with a gas spring 113. In guide holders 112b of the elevating block 112 are provided guides 115 . . . in the same number as the number of the sampling bags 104, and into each guide 115 is inserted a flexible conduit 116 made from stainless steel, in a such manner that it can be drawn out therefrom. Heaters and warm air passages are provided to prevent the condensation of moisture within a sampled gas under a range of operating conditions.

摘要翻译： 在其底面上安装有脚轮101的储物箱100具有位于其底面和左侧的加热器102，右侧内部空间被隔板103分隔，其中九 9）取样袋104。 。 。 总共可以在其右侧的宽广空间中接收。 在存储箱100的一侧设置有连接器单元110.该连接器单元110构造有在上下方向上设置的导轨上钩住的升降块112，并且升降块112被气体向上偏置 在升降块112的引导保持器112b中设置有引导件115。 。 。 与采样袋104的数量相同的数量，并且以每个引导件115的形式插入由不锈钢制成的柔性导管116。 提供加热器和暖空气通道以防止在一定范围的操作条件下采样气体内的水分冷凝。

公开(公告)号：US06263744B1

公开(公告)日：2001-07-24

申请号：US09353493

申请日：1999-07-13

申请人： Lynn M. Russell ,  Richard C. Flagan ,  Shouhua Zhang

发明人： Lynn M. Russell ,  Richard C. Flagan ,  Shouhua Zhang

IPC分类号： G01N1502

CPC分类号： G01N15/02 ,  G01N15/065 ,  G01N2001/2223 ,  G01N2001/244 ,  G01N2015/0046

摘要： An aerosol detection system for measuring particle number distribution with respect to particle dimension in an aerosol sample. The system includes an alternating dual-bag sampler, a radially classified differential mobility analyzer, and a condensation nucleus counter. Pressure variations in sampling are compensated by feedback control of volumetric flow rates using a plurality of flow control elements.

摘要翻译： 用于测量气溶胶样品中颗粒尺寸的粒子数分布的气溶胶检测系统。 该系统包括交替的双袋取样器，径向分类的差分迁移率分析器和冷凝核计数器。 使用多个流量控制元件对体积流量的反馈控制来补偿采样中的压力变化。

公开(公告)号：US5968452A

公开(公告)日：1999-10-19

申请号：US121427

申请日：1998-07-23

申请人： William M. Silvis

发明人： William M. Silvis

IPC分类号： G01N1/22 ,  G01N1/24 ,  G01N1/38 ,  G01N31/12

CPC分类号： G01N1/38 ,  G01N1/2252 ,  G01N1/24 ,  G01N2001/2264 ,  G01N2001/244 ,  Y10T436/117497 ,  Y10T436/12 ,  Y10T436/177692 ,  Y10T436/186 ,  Y10T436/205831 ,  Y10T436/25625 ,  Y10T436/25875

摘要： A system is provided in an exhaust emission sampling system for controlling a flow controller in order to compensate for the effects of changing water vapor content in a diluted sample having a predetermined dilution ratio. A water measuring device such as a relative humidity sensor generates a water vapor signal based on the amount of water vapor in the diluted sample. The water vapor signal is then processed within a control unit to obtain a value for the amount of water in the diluted sample. A control signal is generated by the control unit based on the amount of water vapor, flow rate of the exhaust emissions, and also, on the type of fuel used in the combustion process to control the flow controller which is, preferably, a mass flow controller. A second system is provided in an exhaust emission analyzing system for determining a final amount of pollutants also compensated for the effects of changing water vapor content in the exhaust emissions. The control unit not only processes the water vapor signal from the sensor to obtain a value for the amount of water vapor in the diluted sample as in the first embodiment, but also generates a correction factor based on the value. The correction factor is then utilized by a computer to calculate a final amount of the pollutants based on the correction factor and a preliminary amount of pollutants determined by analyzers of the exhaust emission analyzing system.

摘要翻译： 在用于控制流量控制器的废气排放采样系统中提供一种系统，以补偿具有预定稀释比的稀释样品中改变水蒸气含量的影响。 诸如相对湿度传感器的水测量装置基于稀释样品中的水蒸汽量产生水蒸汽信号。 然后在控制单元内处理水蒸汽信号，以获得稀释样品中的水量的值。 由控制单元基于水蒸汽的量，废气排放的流量以及燃烧过程中使用的用于控制流量控制器的燃料的类型来生成控制信号，流量控制器优选为质量流量 控制器。 在废气排放分析系统中提供第二系统，用于确定污染物的最终量，其也补偿了废气排放物中改变水汽含量的影响。 控制单元不仅处理来自传感器的水蒸汽信号，以获得稀释样品中的水蒸气量的值，如同第一实施例中那样，而且还基于该值产生校正因子。 然后由计算机利用校正因子根据校正因子和废气排放分析系统的分析仪确定的污染物的初步量来计算污染物的最终量。

公开(公告)号：US4060001A

公开(公告)日：1977-11-29

申请号：US718302

申请日：1976-08-27

申请人： Paul H. Archerd

发明人： Paul H. Archerd

IPC分类号： G01N1/22 ,  G01N1/24

CPC分类号： G01N1/2258 ,  G01N1/24 ,  G01N2001/225 ,  G01N2001/2261 ,  G01N2001/244

摘要： A sampling probe and method for its use in which a flow amplifier utilizing the Coanda wall attachment effect has attached to its inlet an isokinetic sampling nozzle and has attached to its outlet a straight tube so that upon passing a flow of compressed, motive gas through the throttling inlet of the flow amplifier, a flow of sample gas is induced from a gaseous external environment of the probe and the motive gas provides a barrier between the sample gas and the wall of the flow amplifier and attached tube. In an embodiment of the invention the motive gas is a dry gas at elevated temperature which reduces moisture content of samples of moist gas environments.

摘要翻译： 一种采样探针及其使用方法，其中利用柯安达墙附接效应的流量放大器已经在其入口附着了等动力采样喷嘴，并且在其出口附接了一个直管，使得当通过压缩的动力气体流过 流量放大器的节流入口，从探针的气体外部环境引起样气的流动，并且运动气体在样品气体与流量放大器和附接管的壁之间提供阻挡层。 在本发明的一个实施方案中，运动气体是在升高的温度下的干燥气体，其降低湿气环境样品的含水量。

公开(公告)号：US3817100A

公开(公告)日：1974-06-18

申请号：US30358472

申请日：1972-11-03

申请人： FORD MOTOR CO

发明人： ANDERSON R ,  AZELBORN N ,  WADE W

IPC分类号： G01F1/00 ,  G01N1/22 ,  G01N1/24

CPC分类号： G01F1/00 ,  G01N1/2252 ,  G01N1/24 ,  G01N2001/2264 ,  G01N2001/244

摘要： An apparatus for determining the total mass of exhaust gas constituents emitted from an internal or external combustion engine, the apparatus having a through-flow duct to receive the exhaust gases and into which is introduced dilution air for thorough mixing with the exhaust gases. The apparatus has means for measuring not only the total mixed flow but also the total flow of dilution air introduced to the duct. Unique means is utilized for extracting and measuring a proportional sample of said mixed flow. Collection and measuring apparatus is used to determine the concentration of dilution air constituents as well as the combined concentration of gaseous constituents in the mixed flow. Utilizing the above two flow measurements and the two constituent concentration measurements, the total mass of exhaust gas from the engine is simply determined on a theoretically correct basis.

摘要翻译： 一种用于确定从内燃机或外燃机排放的废气组分的总质量的装置，该装置具有用于接收废气的通流管道，并且向其中引入稀释空气以与废气充分混合。 该装置具有用于不仅测量总混合流量而且测量引入管道的稀释空气的总流量的装置。 用于提取和测量所述混合流的比例样品的独特手段。 收集和测量装置用于确定稀释空气组分的浓度以及混合流中气体成分的组合浓度。 利用上述两个流量测量和两个组分浓度测量，来自发动机的废气的总质量简单地在理论上正确的基础上确定。

公开(公告)号：US08800383B2

公开(公告)日：2014-08-12

申请号：US13392057

申请日：2010-08-24

申请人： Thomas Bates

发明人： Thomas Bates

IPC分类号： G01F1/42

CPC分类号： G01N1/24 ,  G01F1/363 ,  G01N1/2273 ,  G01N15/06 ,  G01N2001/2223 ,  G01N2001/244 ,  G01N2001/245

摘要： Provided are devices and methods for monitoring flow rate in aerosol particle counters. The particle sensor has a particle counter, a flow measurement orifice comprising a differential pressure sensor for measuring differential pressure (DP) across the flow measurement orifice during particle sensor operation and a critical flow orifice. A vacuum source pulls ambient gas through each of the particle counter, flow measurement orifice and critical flow orifice. An atmospheric pressure sensor measures atmospheric pressure (AP) and a bench pressure sensor measures pressure in the particle sensor (BP). The output from the sensors is used to identify a flow condition, such as by a monitor operably connected to each of the differential pressure sensor, atmospheric pressure sensor and bench pressure sensor. In this manner, deviation in flow rate from a target flow rate is readily monitored without the need for expensive sensors or other flow-controlling components.

摘要翻译： 提供了用于监测气溶胶粒子计数器中的流量的装置和方法。 颗粒传感器具有颗粒计数器，流量测量孔包括用于在颗粒传感器操作期间测量流量测量孔上的差压（DP）的差压传感器和临界流量孔。 真空源通过每个颗粒计数器，流量测量孔和临界流量孔吸引环境气体。 大气压力传感器测量大气压（AP），而台式压力传感器测量颗粒传感器（BP）中的压力。 来自传感器的输出用于识别流动状况，例如通过可操作地连接到差压传感器，大气压力传感器和台式压力传感器中的每一个的监视器。 以这种方式，流量与目标流量的偏差在不需要昂贵的传感器或其他流量控制部件的情况下容易地被监视。

公开(公告)号：US20120222495A1

公开(公告)日：2012-09-06

申请号：US13392057

申请日：2010-08-24

申请人： Thomas Bates

发明人： Thomas Bates

IPC分类号： G01F1/42

CPC分类号： G01N1/24 ,  G01F1/363 ,  G01N1/2273 ,  G01N15/06 ,  G01N2001/2223 ,  G01N2001/244 ,  G01N2001/245

摘要： Provided are devices and methods for monitoring flow rate in aerosol particle counters. The particle sensor has a particle counter, a flow measurement orifice comprising a differential pressure sensor for measuring differential pressure (DP) across the flow measurement orifice during particle sensor operation and a critical flow orifice. A vacuum source pulls ambient gas through each of the particle counter, flow measurement orifice and critical flow orifice. An atmospheric pressure sensor measures atmospheric pressure (AP) and a bench pressure sensor measures pressure in the particle sensor (BP). The output from the sensors is used to identify a flow condition, such as by a monitor operably connected to each of the differential pressure sensor, atmospheric pressure sensor and bench pressure sensor. In this manner, deviation in flow rate from a target flow rate is readily monitored without the need for expensive sensors or other flow-controlling components.

摘要翻译： 提供了用于监测气溶胶粒子计数器中的流量的装置和方法。 颗粒传感器具有颗粒计数器，流量测量孔包括用于在颗粒传感器操作期间测量流量测量孔上的差压（DP）的差压传感器和临界流量孔。 真空源通过每个颗粒计数器，流量测量孔和临界流量孔吸引环境气体。 大气压力传感器测量大气压（AP），而台式压力传感器测量颗粒传感器（BP）中的压力。 来自传感器的输出用于识别流动状况，例如通过可操作地连接到差压传感器，大气压力传感器和台式压力传感器中的每一个的监视器。 以这种方式，流量与目标流量的偏差在不需要昂贵的传感器或其他流量控制部件的情况下容易地被监视。

公开(公告)号：US20070023644A1

公开(公告)日：2007-02-01

申请号：US11471093

申请日：2006-06-19

申请人： Eric Gard ,  Vincent Riot ,  Keith Coffee ,  Bruce Woods ,  Herbert Tobias ,  Jim Birch ,  Todd Weisgraber

发明人： Eric Gard ,  Vincent Riot ,  Keith Coffee ,  Bruce Woods ,  Herbert Tobias ,  Jim Birch ,  Todd Weisgraber

IPC分类号： H01J49/00

CPC分类号： G01N1/24 ,  G01N1/22 ,  G01N2001/2223 ,  G01N2001/244 ,  G01N2015/0026 ,  G01N2015/0046

摘要： A pressure-flow reducer, and an aerosol focusing system incorporating such a pressure-flow reducer, for performing high-flow, atmosphere-pressure sampling while delivering a tightly focused particle beam in vacuum via an aerodynamic focusing lens stack. The pressure-flow reducer has an inlet nozzle for adjusting the sampling flow rate, a pressure-flow reduction region with a skimmer and pumping ports for reducing the pressure and flow to enable interfacing with low pressure, low flow aerosol focusing devices, and a relaxation chamber for slowing or stopping aerosol particles. In this manner, the pressure-flow reducer decouples pressure from flow, and enables aerosol sampling at atmospheric pressure and at rates greater than 1 liter per minute.

摘要翻译： 一种压力减流器和一种包含这种压力减流器的气溶胶聚焦系统，用于在通过空气动力学聚焦透镜叠层在真空中输送紧密聚焦的粒子束的同时执行高流量大气压力采样。 压力减流器具有用于调节采样流量的入口喷嘴，具有撇渣器的压力流动减少区域和用于减小压力和流量的泵送端口，使得能够与低压，低流量气溶胶聚焦装置进行接口以及松弛 用于减缓或停止气溶胶颗粒的室。 以这种方式，压力流减少器将压力与流动分离，并且能够在大气压力和大于每分钟1升的速率下进行气溶胶取样。

公开(公告)号：US07028563B2

公开(公告)日：2006-04-18

申请号：US10818771

申请日：2004-04-05

申请人： Yves Gamache ,  André Fortier

发明人： Yves Gamache ,  André Fortier

IPC分类号： G01N1/00

CPC分类号： G01N1/26 ,  F17D3/10 ,  G01N1/14 ,  G01N1/2247 ,  G01N35/1097 ,  G01N2001/244

摘要： A fluid sampling system and a method thereof are provided. The fluid sampling system is provided with a plurality of sampling channels, each of the sampling channels comprising a sampling line having an inlet, a regulated outlet, and first and second calibrated flow orifices connected in series between the inlet and outlet. Each of the sampling channels also comprises a controllable derivation line connected between the first and second orifices, for deviating fluid from the sampling line. The fluid sampling system is also provided with a connecting line for connecting together the outlets of the sampling lines. The connecting line has a main regulated outlet for providing a fluid sample. The fluid sampling system also comprises control means for controlling pressures between first and second orifices of all of the sampling lines by means of the controllable derivation lines, thereby increasing pressure between first and second orifices of one of the sampling lines which is then selected to provide the fluid sample to the outlet of the connecting line, and decreasing pressure between first and second orifices of remaining sampling lines to back purge the remaining sampling lines. Such a fluid sampling system does not contaminate the sample by the product that is out gassed or adsorbed by the control means used to control fluid flows.

摘要翻译： 提供了一种流体取样系统及其方法。 流体采样系统设置有多个采样通道，每个采样通道包括具有入口，调节出口以及在入口和出口之间串联连接的第一和第二校准流量孔的采样管线。 每个采样通道还包括连接在第一和第二孔之间的可控导数线，用于使流体离开采样管线。 流体采样系统还设有用于将采样管线的出口连接在一起的连接线。 连接线具有用于提供流体样品的主调节出口。 流体采样系统还包括控制装置，用于通过可控的导数线来控制所有采样管线的第一和第二孔之间的压力，从而增加一个采样管线的第一和第二孔之间的压力， 将流体样品连接到连接管线的出口，以及减少剩余采样管线的第一和第二孔之间的压力以反吹净化剩余的采样管线。 这种流体采样系统不会被用于控制流体流动的控制装置排出或吸附的产品污染样品。