US Patent Issued to Shinwa Controls on July 29 for "Flow rate control device, flow rate control method, and chiller" (Japanese Inventor)

ALEXANDRIA, Va., July 30 -- United States Patent no. 12,372,984, issued on July 29, 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 according to one embodiment includes: a flowmeter that repeatedly generates a pulse signal based on flow of a fluid discharged from a fluid machine driven by a brushless motor or AC motor, such that a pulse width of the pulse signal is inversely proportional to a flow rate of the fluid; an FV converter that makes frequency-voltage conversion of the pulse signal and generates a voltage...