ALEXANDRIA, Va., June 17 -- United States Patent no. 12,313,102, issued on May 27, was assigned to Kawasaki Jukogyo K.K. (Kobe, Japan).
"Hydraulic pump performance deterioration detection system" was invented by Akihiro Kondo (Kobe, Japan) and Hiroaki Mitsui (Kobe, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A hydraulic pump performance deterioration detection system according to one embodiment includes: a variable displacement hydraulic pump; a switching valve that is connected to the hydraulic pump by a pump line and to a hydraulic actuator by a supply/discharge line; and a regulator that changes a displacement of the hydraulic pump in accordance with a command current and that limits the displace...