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.
Patent No.:
Date of Patent:
Apr. 19, 2011
Filed:
Dec. 27, 2006
Masahiro Yamakage, Anjo, JP;
Katsutoshi Goto, Okazaki, JP;
Yoshihiro Deguchi, Yokohama, JP;
Kenji Muta, Yokohama, JP;
Akio Kondou, Yokohama, JP;
Masahiro Yamakage, Anjo, JP;
Katsutoshi Goto, Okazaki, JP;
Yoshihiro Deguchi, Yokohama, JP;
Kenji Muta, Yokohama, JP;
Akio Kondou, Yokohama, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Abstract
An exhaust gas analyzer and an exhaust gas analyzing method capable of analyzing the concentration of particulate matter contained in exhaust gas from an internal combustion in real time are provided. The exhaust gas analyzer includes: an exhaust gas passage holethrough which the exhaust gas from the internal combustion is introduced; an optical fiberthat applies the laser light in a direction perpendicular to a flow of the exhaust gas flowing through the exhaust gas passage hole; a detectorthat receives the laser light that has passed through the exhaust gas; a photodetectorthat receives Mie scattered light generated from particulate matter PM contained in the exhaust gas by irradiating the particulate matter with the laser light; and a personal computeras a calculation unit that calculates a concentration of a component in the exhaust gas based on photoreceiving data of a transmitted light intensity obtained from the detector, and calculates a concentration of the particulate matter contained in the exhaust gas based on actual measurement data of a scattered light intensity obtained by the photodetector