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:
Aug. 07, 2012
Filed:
Jan. 27, 2010
Athanasios G. Konstandopoulos, Thessaloniki, GR;
Fumishige Miyata, Gifu, JP;
Takafumi Kasuga, Gifu, JP;
Kazuhiro Ito, Gifu, JP;
Athanasios G. Konstandopoulos, Thessaloniki, GR;
Fumishige Miyata, Gifu, JP;
Takafumi Kasuga, Gifu, JP;
Kazuhiro Ito, Gifu, JP;
Ibiden Co., Ltd., Ogaki-Shi, JP;
Other;
Abstract
A particulate matter concentration measuring apparatus configured to measure a particulate matter concentration in exhaust gas includes an exhaust gas extraction line that is branched from an exhaust line and has a flow passage cross-sectional area smaller than that of the exhaust line, a particulate matter detection filter provided in the exhaust gas extraction line and configured to catch particulate matter, a heating unit configured to heat the caught particulate matter, and a differential pressure detection unit configured to detect a differential pressure generated between an inlet and an outlet of the particulate matter detection filter. The heating unit is configured to apply about 50% or more of a calorific value for heating the particulate matter to an area making up about 30% of the particulate matter detection filter on an upstream side of an exhaust gas flow.