发明名称 |
CVS SYSTEM SAMPLE WATER VAPOR MANAGEMENT |
摘要 |
An exhaust sampling system includes a pre-fill gas source having a pre-fill gas. A sampling conduit is configured to collect exhaust gas and make-up gas. A sample bag is fluidly connected to the sampling conduit and the pre-fill gas source. A controller is programmed to run a test procedure in which a sample of exhaust gas and make-up gas is collected in the sample bag. The controller sends a command that fills the sample bag with pre-fill gas prior to the test procedure. The pre-fill gas remains in the sample bag during the test procedure. In one example, the amount of pre-fill gas is selected to prevent the sample from condensing in the sample bag during the test procedure. In another example, the amount of pre-fill gas is selected to provide a sufficient volume of gases for analysis during the test procedure.
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申请公布号 |
US2010000339(A1) |
申请公布日期 |
2010.01.07 |
申请号 |
US20090501767 |
申请日期 |
2009.07.13 |
申请人 |
SILVIS WILLIAM MARTIN;WILLIAMSON JAMES |
发明人 |
SILVIS WILLIAM MARTIN;WILLIAMSON JAMES |
分类号 |
G01N1/22 |
主分类号 |
G01N1/22 |
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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