公开(公告)号：US3999425A

公开(公告)日：1976-12-28

申请号：US650883

申请日：1976-01-21

Applicant: Lars T. Collin

Inventor： Lars T. Collin

IPC: G01M15/10 ,  G01N1/22 ,  G01M15/00

CPC classification number: G01M15/102 ,  G01N1/2252 ,  G01N1/2247

Abstract: For determining the emission contents of the exhaust gases of a vehicle internal combustion engine the idling engine is disengaged from the vehicle's driving transmission and is, during a fixed period of time, subjected to a series of load variations by momentarily increased charges of fuel to the engine. A certain fraction of the exhaust gas quantity generated during the mentioned period of time is drained or directed to a gas sampling unit, and this gas fraction is analyzed.

Abstract translation: 为了确定车辆内燃机的废气的排放含量，怠速发动机与车辆的驱动变速器脱离，并且在固定的时间段内经受一系列负载变化，通过瞬间增加燃料的燃料到 发动机。 在上述时间段内产生的排气量的一部分被排放或引导到气体采样单元，并分析该气体馏分。

公开(公告)号：US3998102A

公开(公告)日：1976-12-21

申请号：US658572

申请日：1976-02-17

Applicant: George M. Santorilla

Inventor： George M. Santorilla

IPC: G01N1/22

CPC classification number: G01N1/2258 ,  G01N1/2247

Abstract: A support system for a gas sampler for collecting samples of gas from a plurality of laterally arranged ports and including a support rail extending outwardly from the ports to support the gas sampler for movement toward and away from said ports, an auxiliary support for the outer end of the supporting rail, a pair of laterally extending tracks and slidable couplings connecting the ends of the rail and auxiliary support to the tracks to facilitate moving the gas sampler from port to port.

Abstract translation: 一种用于从多个横向布置的端口收集气体样本的气体采样器的支撑系统，并且包括从所述端口向外延伸的支撑轨道，以支撑气体采样器以朝向和远离所述端口移动;外端的辅助支撑件 支撑轨道，一对横向延伸的轨道和可滑动的联接件，其将轨道和辅助支撑件的端部连接到轨道，以便于气体采样器从端口移动到端口。

公开(公告)号：US3986386A

公开(公告)日：1976-10-19

申请号：US460291

申请日：1974-04-12

Applicant: Morton Beltzer ,  William L. Petersen ,  Oliver G. Lewis ,  George S. Musser

Inventor： Morton Beltzer ,  William L. Petersen ,  Oliver G. Lewis ,  George S. Musser

IPC: G01N1/22 ,  G01N1/28 ,  G01N1/38

CPC classification number: G01N1/2247 ,  G01N1/2205 ,  G01N1/2252 ,  G01N1/38 ,  G01N2001/225

Abstract: A method and apparatus for measuring particulates contained in the exhaust gases from internal combustion engines which dilutes the exhaust gases with prefiltered and precooled air to produce a constant volume mixture which may be sampled for exhaust gas emissions as well as for particulates. After mixing of the exhaust gases and the pretreated air, sampling of the mixture by isokinetic probes produces a uniform sample of particulate matter which is collected on temperature controlled filters for analysis.

Abstract translation: 一种测量来自内燃机的废气中所含的微粒的方法和装置，其用预过滤和预冷空气稀释废气，以产生恒定体积的混合物，该体积混合物可以用于废气排放以及颗粒物。 在排气和预处理的空气混合后，通过等动力学探针对混合物进行取样产生均匀的颗粒物质样品，其在温度控制过滤器上收集用于分析。

公开(公告)号：US3842677A

公开(公告)日：1974-10-22

申请号：US19874071

申请日：1971-11-15

Applicant: PIONEER NATURAL GAS CO

Inventor： BUFKIN G ,  MOORE T

IPC: G01N1/10 ,  G01N1/22 ,  G01N1/14

CPC classification number: G01N1/10 ,  G01N1/2247

Abstract: Processes and apparatuses for automatically sampling gases and/or liquids by the steps of (1) opening a valve passage from (a) a chamber containing an incompressible metering liquid in a first chamber in contact with a first sample of a fluid source at a predetermined initial pressure through a first conduit or fixed internal diameter and length to (b) a second flexible conduit and a second upstanding chamber initially filled with a gas and (2) locating additional volume of said fluid source into said first chamber and passing a fixed portion of a volume of said incompressible metering liquid from said first chamber and said first conduit into said valve and second conduit and into said second chamber and selectively discharging from said second chamber and second conduit all of the said gas theretofore therein and thus filling said second conduit and said second chamber with said incompressible liquid, then emptying all of said added liquid from the second chamber preparatory to another cycle. The gas or liquid to be sampled passes from the source thereof through a conduit purge line for a sufficient time to purge said line from the source of any fluid theretofore therein prior to passing said additional volume of sample of said fluid into said first chamber. A unique differential valve structure automatically meters the volume of displacement measuring liquid flowing under a 125 p.s.i.g. pressure drop to within + OR - onehalf gram accuracy. The apparatuses also include a unit for selective passage of air while precisely checking flow of displacement liquid, to provide a consistent precise measure of gas or liquid sample volume and a sample receiver connection system that is readily connected and disconnected for sample handling without damage to the precision of operation of the system.

公开(公告)号：US3803920A

公开(公告)日：1974-04-16

申请号：US30697772

申请日：1972-11-15

Applicant: ENVIRONMENTAL PROTECTION AGENC

Inventor： HOMOLYA J ,  GRIFFIN R

IPC: G01N1/22 ,  G01N1/38

CPC classification number: G01N1/38 ,  G01N1/2247 ,  G01N2001/2264

Abstract: A device for obtaining a representative sample of a gaseous emission stream and diluting sample with clean air so that the resulting stream can be subsequently analyzed.

Abstract translation: 一种用于获得气体排放流的代表性样品并用清洁空气稀释样品的装置，以便随后分析所得流。

公开(公告)号：US3740148A

公开(公告)日：1973-06-19

申请号：US3740148D

申请日：1970-12-08

Applicant: RESEARCH CORP

Inventor： MOROZ W ,  ANDERSON G ,  WITHSTANDLEY V

IPC: G01N15/14 ,  G06M1/10 ,  G01N15/02 ,  G01N21/06

CPC classification number: G01N1/2247 ,  G01N15/14 ,  G01N2001/2223 ,  G01N2015/1486 ,  G01N2015/1493 ,  G06M1/101

Abstract: A portable battery powered dust analyzer operating on the principle of light-scattering from individual airborne particles moving past a high intensity light, which is capable of counting and size discriminating air-borne particulate matter over several size ranges while providing immediate readout in which the flow passage system minimizes turbulence and recirculation allowing for small physical dimensions of the device and portability.

Abstract translation: 一种便携式电池供电的灰尘分析仪，其工作原理是从各种空气中的颗粒移动通过高强度光的散射原理，其能够计数和大小区分几个尺寸范围内的空气传播颗粒物质，同时提供立即读数，其中流动 通道系统最大限度地减少了湍流和再循环，从而允许设备的小物理尺寸和便携性。

公开(公告)号：US3710557A

公开(公告)日：1973-01-16

申请号：US3710557D

申请日：1972-03-17

Applicant: ATOMIC ENERGY COMMISSION

Inventor： COUCHMAN J ,  APPLEBAY G

IPC: G01N1/22 ,  B01D35/26

CPC classification number: G01N1/2247 ,  G01N1/2202 ,  G01N2001/2223 ,  G01N2001/225

Abstract: An air sampling device including a sampling duct containing a particulate filter and a venturi shroud surrounding the duct. Flow tubes are provided for delivering high velocity air from the venturi into the region behind the filter. Control jets in the region of the venturi constriction enable the effect of the venturi to be varied by the injection of pressurized air from an auxiliary source such as an aircraft cabin or the utilization of the siphon pumping action of the venturi.

Abstract translation: 一个空气采样装置，包括一个包含微粒过滤器的采样管和围绕管道的文丘里管。 提供流量管，用于将来自文丘里管的高速空气输送到过滤器后面的区域。 在文氏管收缩区域内的控制喷嘴可以通过从辅助源（如飞机机舱）注入加压空气或利用文丘里管的虹吸泵送作用来改变文丘里管的效果。

公开(公告)号：US3675489A

公开(公告)日：1972-07-11

申请号：US3675489D

申请日：1970-09-18

Applicant: MONTEDISON SPA

Inventor： GARILLI FRANCESCO ,  MARINO MICHELANGELO

IPC: G01N1/22

CPC classification number: G01N1/2247 ,  G01N2001/227

Abstract: An apparatus for drawing samples of gaseous mixtures to be analyzed, such as the gaseous mixtures present at the outflow of a cracking furnace, includes a plurality of baffles arranged longitudinally inside a hollow columnar passageway so as to provide a serpentine pathway for the gaseous mixture flowing therethrough. A thermoregulator, which comprises a sleeve or jacket through which a temperature controlling fluid such as air or steam flows, surrounds the columnar passageway substantially along its length to regulate the temperature therewithin. A thermometer located at the head of the passageway, near a sampling duct through which the desired gaseous mixture is passed to an analyzer, controls the flow of fluid within the thermoregulator by sensing the temperature of the passing mixture so as to maintain this temperature at a desired value. This value is dependent on the fraction desired for analysis. Solid particles contained in a mixture are deposited on the baffles as the mixture flows through the serpentine pathway. Self-washing of these baffles is accomplished by condensation of the higher boiling fractions.

Abstract translation: 用于抽取要分析的气体混合物样品的装置，例如存在于裂解炉出口处的气体混合物，包括沿中空柱状通道纵向布置的多个挡板，以便提供用于气体混合物流动的蛇形通道 通过。 一种温度调节器，其包括套管或套管，诸如空气或蒸汽之类的温度控制流体通过该套筒或套管沿着其长度大致围绕柱状通道，以调节其中的温度。 位于通道头部的温度计，靠近采样管道，期望的气体混合物通过该通道通过分析器，通过感测通过的混合物的温度来控制温度调节器内的流体流动，以将该温度保持在 所需值。 此值取决于分析所需的分数。 当混合物流过蛇形通路时，混合物中包含的固体颗粒沉积在挡板上。 这些挡板的自清洗是通过较高沸点馏分的冷凝来完成的。

公开(公告)号：US3603155A

公开(公告)日：1971-09-07

申请号：US3603155D

申请日：1970-02-02

Applicant: CHROMALLOY AMERICAN CORP

Inventor： MORRIS CHARLES WILLIAM ,  ULYATE JOHN RAYMOND

IPC: G01M15/10 ,  G01N1/22 ,  G01N33/00

CPC classification number: G01N33/0011 ,  G01M15/102 ,  G01N1/2247 ,  Y10S55/30

Abstract: An air blower draws a mixture of exhaust gases emitted from an internal combustion engine and ambient air through a through-flow duct having a valve means therein at a minimum volumetric flow rate for the mixture in excess of the maximum volumetric flow rate the engine is capable of emitting while a proportional sample of said total mixture is withdrawn into a sample container at a uniform volumetric rate during a test period, the sample thereafter being analyzed to determine the concentration of pollutants of gas constituents therein and compared with the concentration of such pollutants or gas constituents in the ambient air which is sampled concurrently at the same flow rate from an area adjacent that where the ambient air is drawn into the through-flow conduit, total mass or weight of such pollutants or constituents being calculable from the concentration thereof in said sample and the known total mass or weight of air and gas mixture drawn through the duct. Temperature sensing and transducer means produce a first or error signal which is a function of the temperature of gases flowing through said duct, volumetric flow rate sensing means and associated transducer means produce a second signal which is a function of volumetric gas flow through the duct and electrical circuit means are provided in association therewith to cause said second signal to modify said first signal to produce a control signal which causes operation of a servomotor to adjust the valve means until an actual required volumetric flow rate through the duct is attained for any given temperature thereof to maintain a constant mass or weight flow, said actual volumetric flow rate for said gases increasing with increasing gas temperatures above a standard initial flow rate for a standard temperature condition. Circuitry is provided for a system for maintaining constant the rate of mass flow of a gas through a conduit despite temperature changes. The system generates an error signal linear with the absolute temperature of the gas, generates a second signal which is linear with differential pressure across a fixed orifice in the conduit, and thus with velocity of flow therein, modifies the error signal by the second signal to produce a command signal of appropriate polarity to adjust the velocity of gas flow in an inverse feedback manner by controlling a throttling valve in the conduit.

公开(公告)号：US2926527A

公开(公告)日：1960-03-01

申请号：US71993558

申请日：1958-03-07

Applicant: CONS EDISON CO NEW YORK INC

Inventor： CRANDALL WILLARD A

IPC: G01N1/22

CPC classification number: G01N1/2247 ,  F16L2101/30 ,  G01N2001/225