Title:
EXHAUST GAS ANALYSIS DEVICE, EXHAUST GAS ANALYSIS METHOD, AND EXHAUST GAS ANALYSIS PROGRAM
Document Type and Number:
WIPO Patent Application WO/2023/120015
Kind Code:
A1
Abstract:
The present invention provides an exhaust gas analysis device 100 that reduces cold spots of a sampling probe without providing the sampling probe with a heater and heating the sampling probe and that analyzes an exhaust gas exhausted from a vehicle or part of the vehicle. The exhaust gas analysis device 100 is provided with: a sampling probe 3 that samples an exhaust gas from a main flow path 2 through which the exhaust gas flows; a gas analyzer 5 that measures a component concentration in the exhaust gas sampled by the sampling probe 3; a heated gas supply mechanism 9 that supplies a heated gas to the sampling probe 3; and a control unit COM that controls an operation related to analysis of the exhaust gas. The control unit COM supplies the gas heated by the heated gas supply mechanism 9 to the sampling probe 3 before the sampling of the exhaust gas by means of the sampling probe 3 is started and starts the sampling of the exhaust gas by means of the sampling probe 3 in a state in which the sampling probe 3 has been heated.
Inventors:
KONDO YOSUKE (JP)
KOMATSU YOJI (JP)
KOMATSU YOJI (JP)
Application Number:
PCT/JP2022/043386
Publication Date:
June 29, 2023
Filing Date:
November 24, 2022
Export Citation:
Assignee:
HORIBA LTD (JP)
International Classes:
G01N1/22
Foreign References:
| JP2007278897A | 2007-10-25 | |||
| JP2012002799A | 2012-01-05 | |||
| JP2003098055A | 2003-04-03 | |||
| JP2021028570A | 2021-02-25 | |||
| JP2015232559A | 2015-12-24 | |||
| JP2004144574A | 2004-05-20 | |||
| JP2015219104A | 2015-12-07 |
Attorney, Agent or Firm:
NISHIMURA, Ryuhei et al. (JP)
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