ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,429,070, issued on Sept. 30, was assigned to Robert Bosch GmbH (Stuttgart, Germany).
"Fan drive device with proportional valve" was invented by Paulo Teixeira (Pomerode-SC, Brazil).
According to the abstract* released by the U.S. Patent & Trademark Office: "A fan drive device for use with a hydraulic pump featuring a constant displacement volume is disclosed. The fan drive device includes a hydraulic motor configured to be directly coupled to a fan. The hydraulic motor includes a first working connection, a second working connection, and a constant displacement volume. The fan drive device further includes a hydraulic valve having a pump connection and a tank connection. The hydraul...