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:
Sep. 13, 2011
Filed:
Nov. 24, 2005
Toshihiko Nishiyama, Oyama, JP;
Koji Iijima, Oyama, JP;
Toshihiko Nishiyama, Oyama, JP;
Koji Iijima, Oyama, JP;
Komatsu Ltd., Tokyo, JP;
Abstract
An inlet chamberand outlet chamberfor exhaust gas are integrated as an inflow/outflow section, and a first post treatment deviceequipped with a DPFat its central portion and second post-treatment deviceequipped with a urea DeNOx catalyston its outer periphery side are integrated as a catalyst installation section. The catalyst installation section, the inflow/outflow section, and a communication chamber forming sectionare provided separately and detachably from one another, and the catalyst installation sectionis made installable in a reversible manner. As a result, by reversing the catalyst installation section, it is possible to easily reverse the DPFwithout having to extract it from the central part. Further, since the urea DeNOx catalystis reversed simultaneously, it is possible to change the direction in which the exhaust gas flows therein, thereby enabling to prevent unbalanced deterioration of the urea DeNOx catalyst