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:
Jul. 21, 2026
Filed:
Mar. 10, 2023
Kawasaki Jukogyo Kabushiki Kaisha, Kobe, JP;
Masahiro Ohira, Kobe, JP;
Yoshiyuki Tode, Kobe, JP;
KAWASAKI JUKOGYO KABUSHIKI KAISHA, Kobe, JP;
Abstract
A hydraulic drive includes a hydraulic pump that discharges a working fluid; a travel system hydraulic circuit that is connected to a first passage branching from a pump passage connected to the hydraulic pump and controls a flow of the working fluid to a travel motor; a loading system hydraulic circuit that is connected to a second passage branching from the pump passage and controls a flow of the working fluid to a loading actuator; a flow rate control valve that is interposed in the second passage and changes an opening degree of the second passage according to a signal; a travel-end pressure sensor that detects a pressure being supplied to the travel motor; and a control device that controls, by outputting the signal to the flow rate control valve, the opening degree of the second passage according to the pressure detected by the travel-end pressure sensor.