公开(公告)号：US10317318B2

公开(公告)日：2019-06-11

申请号：US15543236

申请日：2015-12-11

Applicant: AVL EMISSION TEST SYSTEMS GMBH

Inventor： Sascha Willich ,  Norbert Kreft ,  Christopher Garthe

IPC: G01N1/22

Abstract: An exhaust-gas sampling system includes a main conveying line, a main throughput pump which conveys a sample gas in the main conveying line, a sample gas bag, a sample gas withdrawal line which fluidically connects the main conveying line to the sample gas bag, a throughflow control element arranged in the sample gas withdrawal line, an analyzer, a sample gas analysis line which connects the analyzer to the sample gas bag, an evacuation line which establishes a fluidic connection between the main throughput pump and the sample gas bag, and a first valve arranged in the evacuation line. The first valve opens and closes the evacuation line.

公开(公告)号：US09952124B2

公开(公告)日：2018-04-24

申请号：US14384690

申请日：2013-03-12

Applicant: AVL EMISSION TEST SYSTEMS GMBH

Inventor： Achim Dickow ,  Rainer Ballik ,  Sascha Willich

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

CPC classification number: G01N1/2252 ,  G01M15/102 ,  G01N33/0018 ,  G01N2001/2255

Abstract: A system for taking exhaust gas samples from internal combustion engines includes an exhaust gas duct comprising an outflow cross section and an exhaust gas inlet. The exhaust gas duct communicates with an exhaust gas source via the exhaust gas inlet. An air duct takes in ambient air via a filter. The outflow cross section is concentric in the air duct. A mixing zone is arranged downstream of the outflow cross section. A dilution tunnel has an exhaust gas/air mixture flow therethrough. An annular orifice is arranged downstream of the outflow cross section in the dilution tunnel. A flow deflection device is arranged upstream of the annular orifice and downstream of the outflow cross section. The flow deflection device deflects the exhaust gas/air mixture so that it departs from a center axis of the dilution tunnel immediately downstream of the flow deflection device in an axially symmetrical manner.

公开(公告)号：US11193863B2

公开(公告)日：2021-12-07

申请号：US16757770

申请日：2018-09-21

Applicant: AVL EMISSION TEST SYSTEMS GMBH

Inventor： Sascha Willich ,  Achim Dickow ,  Sonja Opitz ,  Murat Oeztuerk

IPC: G01N1/44 ,  G01N1/22

Abstract: A control cabinet arrangement for an exhaust gas measurement device. The control cabinet arrangement includes a first control cabinet which delimits a first interior space and a second control cabinet which delimits a second interior space. A first heat-generating component of the exhaust emission measurement device is arranged in the first interior space. A second component of the exhaust emission measurement device is arranged in the second interior space. At least one fluidic connection connects the first interior space and the second interior space. The second component is heatable by an air flow flowing between the first interior space and the second interior space.

公开(公告)号：US20150020582A1

公开(公告)日：2015-01-22

申请号：US14384690

申请日：2013-03-12

Applicant: AVL EMISSION TEST SYSTEMS GMBH

Inventor： Achim Dickow ,  Rainer Ballik ,  Sascha Willich

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

CPC classification number: G01N1/2252 ,  G01M15/102 ,  G01N33/0018 ,  G01N2001/2255

Abstract: A system for taking exhaust gas samples from internal combustion engines includes an exhaust gas duct comprising an outflow cross section and an exhaust gas inlet. The exhaust gas duct communicates with an exhaust gas source via the exhaust gas inlet. An air duct takes in ambient air via a filter. The outflow cross section is concentric in the air duct. A mixing zone is arranged downstream of the outflow cross section. A dilution tunnel has an exhaust gas/air mixture flow therethrough. An annular orifice is arranged downstream of the outflow cross section in the dilution tunnel. A flow deflection device is arranged upstream of the annular orifice and downstream of the outflow cross section. The flow deflection device deflects the exhaust gas/air mixture so that it departs from a center axis of the dilution tunnel immediately downstream of the flow deflection device in an axially symmetrical manner.

Abstract translation: 用于从内燃机排出废气样品的系统包括排气管道，其包括流出横截面和排气入口。 排气管经由排气入口与废气源连通。 风管通过过滤器吸收环境空气。 流出横截面在空气管中是同心的。 混合区设置在流出横截面的下游。 稀释通道具有通过其的排气/空气混合物流。 环形孔口布置在稀释管道中的流出横截面的下游。 流动偏转装置设置在环形孔的上游和流出横截面的下游。 流动偏转装置使废气/空气混合物偏转，使得其以轴向对称的方式从紧邻流动偏转装置的下游离开稀释通道的中心轴线。