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:
Feb. 16, 2021
Filed:
Feb. 29, 2016
Isuzu Motors Limited, Tokyo, JP;
ISUZU MOTORS LIMITED, Tokyo, JP;
Abstract
A maintenance pipe () used during maintenance of an exhaust purification device equipped with: a set of an oxidation catalyst () and a filter () for purifying exhaust gas from an engine (); an upstream connecting pipe (A) and a downstream connecting pipe (B) which are mounted in a demountable way and guide the exhaust gas from the engine () to the oxidation catalyst (); and an exhaust pipe injection device () and injectors () for increasing a concentration of unburned fuel contained in the exhaust gas. The maintenance pipe includes a flanged steel pipe () mounted to be replaceable with the downstream connecting pipe (B), and a maintenance catalyst () that is housed in the flanged steel pipe (), generates heat caused by oxidizing the unburned fuel contained in the exhaust gas from the engine (), and heats the exhaust to discharge the exhaust to an exhaust downstream side.