US Patent Issued to Shinwa Controls on Aug. 26 for "Flow rate control device, flow rate control method, and chiller" (Japanese Inventor)

ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,399,515, issued on Aug. 26, was assigned to Shinwa Controls Co. Ltd. (Kawasaki, Japan).

"Flow rate control device, flow rate control method, and chiller" was invented by Toru Ikegami (Kawasaki, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A flow rate control device includes a flowmeter that detects a flow rate of a fluid discharged from a fluid machine driven by a motor, and a controller that changes a frequency of a drive input voltage for driving the motor. The controller stores a tuning frequency table recording relationships between a plurality of difference ranges each of which defines a range to which an absolute value of a difference betw...