ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,449,048, issued on Oct. 21, was assigned to AISIN Corp. (Aichi, Japan).
"Rotary valve" was invented by Koichi Maruyama (Kariya, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A valve includes a housing, plural rotors in the housing, a linkage mechanism that links the rotors, and an electric actuator. The rotors include a drive rotor driven and rotated by the electric actuator and a driven rotor to which a driving rotational force is transmitted from the drive rotor via the linkage mechanism. The linkage mechanism includes a contact portion and a contacted portion. The linkage mechanism can select between a transmission mode and a non-transmission ...