ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,410,734, issued on Sept. 9, was assigned to SUZUKI MOTOR Corp. (Hamamatsu, Japan).
"Variable valve device" was invented by Hisashi Ozeki (Hamamatsu, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A variable valve device changes a valve lift amount in a cylinder head. The device includes: a camshaft having plural cams with different valve lift amounts; plural rocker arms in contact with the plural cams to move a valve; a switching mechanism that couples and separates the plurality of rocker arms by oil pressure; and an oil control valve that control the oil pressure. The switching mechanism includes a coupling piston and a separation piston that a...