The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 08, 2018

Filed:

May. 22, 2013
Applicant:

Horiba, Ltd., Kyoto, JP;

Inventors:

Masaru Miyai, Kyoto, JP;

Manabu Ito, Kyoto, JP;

Masahiro Nishikawa, Kyoto, JP;

Assignee:

Horiba, Ltd., Kyoto, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 27/407 (2006.01); F04B 49/00 (2006.01); F04B 51/00 (2006.01);
U.S. Cl.
CPC ...
G01N 27/407 (2013.01); F04B 49/00 (2013.01); F04B 51/00 (2013.01); F04B 2205/09 (2013.01);
Abstract

An exhaust gas analyzing system makes it possible to determine appropriate maintenance timing of sampling pumps in the system, including sampling pumps and provided in a main flow path in order to sample exhaust gas sent from an introduction port, analysis parts provided on the upstream side or downstream side of the sampling pumps and in the main flow path, flow meters provided on the upstream side or downstream side of the analysis parts in the main flow path, and pump abnormality determination parts and for determining abnormality of the sampling pumps by comparing pump flow rates obtained by the flow meters to a predetermined abnormal flow rate.


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