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:
Apr. 30, 2013
Filed:
Jun. 18, 2010
Kazuhiro Shibamori, Joso, JP;
Kazunori Nakamura, Tsuchiura, JP;
Kouji Ishikawa, Kasumigaura, JP;
Yoichi Kowatari, Kasumigaura, JP;
Hidenobu Tsukada, Ushiku, JP;
Shohei Kamiya, Kasumigaura, JP;
Masanori Ezawa, Tsukuba, JP;
Kazuhiro Shibamori, Joso, JP;
Kazunori Nakamura, Tsuchiura, JP;
Kouji Ishikawa, Kasumigaura, JP;
Yoichi Kowatari, Kasumigaura, JP;
Hidenobu Tsukada, Ushiku, JP;
Shohei Kamiya, Kasumigaura, JP;
Masanori Ezawa, Tsukuba, JP;
Hitachi Construction Machinery Co., Ltd., Tokyo, JP;
Abstract
Disclosed is a working machine capable of preventing damage to a filter due to excessive accumulation of particulate matter (PM), even under a situation that requires, prior to compulsory regeneration of the filter, moving the machine to a place in which to perform the regeneration work. The working machine that includes an exhaust treatment devicehaving a filterto trap the PM, a regeneration control sectionfor compulsorily regenerating the filter, and a regeneration instruction devicefor instructing the regeneration control sectionto start the compulsory regeneration. Further, when a deposition quantity estimating element determines that an actual PM deposition quantity has reached a deposition alarm level, an alarm devicenotifies an operator that the time has come to start the movement of the working machine to the place of regeneration.