Title:
PM MEASUREMENT DEVICE IN EXHAUST GAS
Document Type and Number:
Japanese Patent JP3195725
Kind Code:
B2
Abstract:
PURPOSE: To enable high precision measurement for PM(particulate material) in exhaust gas by measuring soot contained in the gas exhausted from an internal combustion engine with a flame ionization detector(FID).
CONSTITUTION: Sample gas S taken in a sampling channel 6 of exhaust gas G from a diesel engine 2 is so branched into the first branch gas channel 7 and the second branch gas channel 8 to flow, and then the sample gas S flowing in the first branch gas channel 7 is, through a dummy 12, supplied directly to the first FID 9. Meanwhile, the sample gas S flowing in the second branch gas channel 8 is, through a filter device 10, supplied to the second FID 11 with no PM contained. Analysis is done in the first FID 9 and the second FID 11, and the results are inputted to a calculation part 13. Then concentration of the PM contained in the sample gas S is obtained.
Inventors:
Minoru Inouchi
Shigeo Nakamura
Shigeo Nakamura
Application Number:
JP17422695A
Publication Date:
August 06, 2001
Filing Date:
June 17, 1995
Export Citation:
Assignee:
HORIBA, Ltd.
International Classes:
G01N27/62; (IPC1-7): G01N27/62
Domestic Patent References:
| JP6289004A | ||||
| JP58134767U |
Attorney, Agent or Firm:
Hideo Fujimoto
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