发明名称 |
Real-time on-road vehicle exhaust gas modular flowmeter and emissions reporting system |
摘要 |
An on-board vehicle emissions testing system includes an instrument module adapted to be detachably connected to the exhaust pipe of a vehicle to provide for flow of exhaust gas therethrough. The instrument module includes a differential pressure probe which allows for determination of flow rate of the exhaust gas and a gas sampling tube for continuously feeding a sample of the exhaust gas to a gas analyzer. In addition to the module, the on-board emission testing system also includes an elastomeric boot for detachably connecting the module to the exhaust pipe of the vehicle, a gas analyzer for receiving and analyzing gases sampled within the module and a computer for calculating pollutant mass flow rates based on concentrations detected by the gas analyzer and the detected flow rate of the exhaust gas. The system may also include a particulate matter detector with a second gas sampling tube feeding same mounted within the instrument module.
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申请公布号 |
US6382014(B1) |
申请公布日期 |
2002.05.07 |
申请号 |
US20000685946 |
申请日期 |
2000.10.12 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINSTRATOR OF THE U.S. ENVIRONMENTAL PROTECTION AGENCY |
发明人 |
BRETON LEO ALPHONSE GERARD |
分类号 |
G01M15/04;F01N7/00;G01F1/46;G01F9/00;G01M15/10;(IPC1-7):G01M15/00;G01N1/22 |
主分类号 |
G01M15/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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