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. 14, 2020
Filed:
Apr. 23, 2019
Kubota Corporation, Osaka-shi, Osaka, JP;
Katsushi Inoue, Sakai, JP;
Koichi Funaki, Sakai, JP;
Masanori Fujiwara, Sakai, JP;
Tamotsu Kuno, Sakai, JP;
Kentaro Kita, Sakai, JP;
Yuki Yoshita, Sakai, JP;
KUBOTA Corporation, Osaka-Shi, Osaka, JP;
Abstract
There is provided an exhaust treatment device for a diesel engine that can prevent unnecessary alarm for ash deposition from being issued. In the exhaust treatment device, a timer measures integrated time of a state of non-regenerative operation which ranges from an end of DPF regeneration to a next time point where the differential pressure reaches a regeneration request value. A counter acquires the short interval count if the integrated time is a short interval shorter than a predetermined decision time. An alarm device issues an alarm if the consecutive short interval count reaches a predetermined plural necessary count for alarm. A short interval count having been already acquired is preferably reset to 0 if the integrated time of the state of non-regenerative operation is a long interval, not shorter than a predetermined decision time, before the short interval count reaches the predetermined necessary count for alarm.