ALEXANDRIA, Va., June 19 -- United States Patent no. 12,331,830, issued on June 17, was assigned to Schaeffler Technologies AG & Co. KG (Herzogenaurach, Germany).
"Method for actuating a hydraulic device" was invented by Yunfan Wei (Buhl, Germany), Oliver Rink (Karlsruhe, Germany) and Carsten Mayer (Lohr a. Main, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "Actuation of a hydraulic device that provides a hydraulic supply to a torque-transmitting device is provided. An electrically operated pump is operated in a first operating state. The first operating state has a primary pump rotational speed that provides a first fluid pressure to the torque-transmitting device via a fluid tract. A switchover pr...