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:
Oct. 04, 2016
Filed:
Oct. 02, 2014
Hitachi Construction Machinery Co., Ltd., Bunkyo-ku, Tokyo, JP;
Kabushiki Kaisha Kcm, Kako-gun, Hyogo, JP;
Koji Hyodo, Kasumigaura, JP;
Takashi Takeyama, Ryugasaki, JP;
Tetsuji Tanaka, Abiko, JP;
Isamu Aoki, Tsukuba, JP;
Katsutaka Hara, Toride, JP;
Tatsuo Oouchi, Ryugasaki, JP;
Hitachi Construction Machinery Co., Ltd., Tokyo, JP;
KABUSHIKI KAISHA KCM, Hyogo, JP;
Abstract
A work vehicle including a front work device, contains: a variable displacement hydraulic pump that is driven by an engine and supplies pressure oil to an actuator that drives the front work device; an exhaust gas purification device that purifies nitrogen oxide in exhaust gas discharged from the engine using a reducing agent solution stored in a reducing agent tank; a remaining amount detection device that detects a remaining amount of the reducing agent solution in the reducing agent tank; and a control unit that decreases output torque of the engine and also decreases a rotational speed of the engine in a rated point according to decrease of the remaining amount of the reducing agent solution detected by the remaining amount detection device.