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:
May. 13, 1997
Filed:
Jan. 24, 1994
Makoto Horiuchi, Himeji, JP;
Noboru Miyake, Hyogo, JP;
Toshimasa Kushihara, Himeji, JP;
Koichi Saito, Himeji, JP;
Nippon Shokubai Kagaku Kogyo Co., Ltd., Osaka, JP;
Abstract
A method for purifying exhaust gases from a diesel engine is provided. The method utilizes a flow through type honeycomb catalyst having parallel through-cells and (1) a cross-sectional area at the inlet part of an exhaust gas cut by a face vertical to the direction of the through-cells of 10 to 100 cm.sup.2, preferably 20 to 80 cm.sup.2, per liter of the displacement of the engine, (2) an hydraulic diameter of the through-cells of 1.00 to 2.00 mm, preferably 1.10 to 1.40 mm, and (3) the percentage of open frontal area at the inlet part of the exhaust gas of 40 to 95%, preferably 50 to 85%.