Title:
GAS ANALYSIS APPARATUS
Document Type and Number:
WIPO Patent Application WO/2013/054609
Kind Code:
A1
Abstract:
In order to degrade residual urea, without leakage thereof, included in exhaust gas discharged from an internal combustion engine and accurately measure the amount of residual urea, and to prevent pulverulent urea from sticking to a sensor or the like and thereby adversely effecting measurement precision and reliability, a gas analysis apparatus (100) is provided with a filter unit (4) which is disposed between a collection port (111) and generated matter measurement mechanisms (21, 22) inside a mixed gas collection tube (1) and which gathers urea either in a solid state within a mixed gas or in a state in which the urea is dissolved into water.
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Inventors:
NAKATANI SHIGERU (JP)
Application Number:
PCT/JP2012/072382
Publication Date:
April 18, 2013
Filing Date:
September 03, 2012
Export Citation:
Assignee:
HORIBA LTD (JP)
NAKATANI SHIGERU (JP)
NAKATANI SHIGERU (JP)
International Classes:
G01N1/22; G01N1/00; G01N31/00; F01N3/08
Foreign References:
| JP2010223650A | 2010-10-07 | |||
| JP2002155733A | 2002-05-31 | |||
| JP2010514545A | 2010-05-06 |
Other References:
See also references of EP 2767819A4
None
None
Attorney, Agent or Firm:
NISHIMURA, RYUHEI (JP)
Ryuhei Nishimura (JP)
Ryuhei Nishimura (JP)
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Claims: