ALEXANDRIA, Va., July 28 -- United States Patent no. 12,692,836, issued on July 28, was assigned to Purdue Research Foundation (West Lafayette, Ind.).
"Low-speed high-torque hydrostatic powertrain" was invented by Lizhi Shang (West Lafayette, Ind.) and Jun Chen (West Lafayette, Ind.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A hydraulic pump is disclosed, which includes an input crank shaft configured to be interfaced with a shaft of a power generating device, one or more connecting rings coupled to the input crank shaft with an eccentric interface such that when the input crank shaft is rotating causes the connecting ring to rotate with an eccentricity, a fixed annular frame, and a plurality of hydrauli...