ALEXANDRIA, Va., March 24 -- United States Patent no. 12,584,504, issued on March 24, was assigned to DAIKIN INDUSTRIES LTD. (Osaka, Japan).
"Hydraulic unit" was invented by Hirotoshi Torii (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A hydraulic unit includes an oil tank, a hydraulic pump, a first return pipe, and a first heat exchanger. The oil tank stores a hydraulic oil. The hydraulic pump supplies the hydraulic oil in the oil tank to an actuator. The first return pipe returns the hydraulic oil from a flow path between a discharge port of the hydraulic pump and the actuator to the oil tank. The first heat exchanger causes a coolant to exchange heat with the hydraulic oil returning to the ...