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. 13, 2026
Filed:
Mar. 05, 2024
Kawasaki Jukogyo Kabushiki Kaisha, Kobe, JP;
Akihiro Kondo, Kobe, JP;
Kazuya Iwabe, Kobe, JP;
KAWASAKI JUKOGYO KABUSHIKI KAISHA, Kobe, JP;
Abstract
A pump calibration system includes a hydraulic pump of a variable capacity type, a regulator that changes a discharge capacity according to a command signal, an unloader valve having a variable opening degree, a pressure sensor that measures a discharge pressure, and a control device that controls the discharge capacity and calibrates a pump characteristic. The control device stores a first reference pressure detected by the pressure sensor when a first reference signal is output under a measurement condition in which the opening degree of the unloader valve is fixed and the pump is driven to rotate a predetermined amount, and when a calibration condition is satisfied, changes the command signal so that the discharge pressure becomes the first reference pressure, and calibrates the pump characteristic on the basis of a first actual signal that is the command signal with which the discharge pressure is the first reference pressure.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile