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:
Mar. 27, 2012
Filed:
Jan. 27, 2010
Athanasios G. Konstandopoulos, Thessaloniki, GR;
Fumishige Miyata, Gifu, JP;
Takafumi Kasuga, Gifu, JP;
Yasuhiro Ishii, Gifu, JP;
Athanasios G. Konstandopoulos, Thessaloniki, GR;
Fumishige Miyata, Gifu, JP;
Takafumi Kasuga, Gifu, JP;
Yasuhiro Ishii, Gifu, JP;
Ibiden Co., Ltd., Ogaki-Shi, JP;
Other;
Abstract
A particulate matter concentration measuring apparatus is configured to measure a concentration of particulate matter in exhaust gas flowing through an exhaust line of a diesel engine. The apparatus includes an exhaust gas extraction line diverging from the exhaust line and having a flow passage cross-sectional area smaller than a flow passage cross-sectional area of the exhaust line. A particulate matter detection filter has a cell wall and is provided in the exhaust gas extraction line. A flow velocity of the exhaust gas passing through the cell wall is more than or equal to approximately 0.02 m/s and less than or equal to approximately 2.0 m/s. A differential pressure sensing part is configured to sense a differential pressure generated between an inlet and an outlet of the particulate matter detection filter.