US Patent Issued on July 29 for "Variable displacement engine" (California Inventor)

ALEXANDRIA, Va., July 30 -- United States Patent no. 12,372,035, issued on July 29.

"Variable displacement engine" was invented by Jay Tran (Fountain Valley, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A combustion engine comprises a main combustion cylinder configured to enable a piston to move therein; a main valve configured to move in the main combustion cylinder; an upper non-combustion chamber operatively adjacent to the main combustion cylinder; an upper intake valve configured to move in the upper non-combustion chamber and to communicate with an intake manifold; and an upper exhaust valve configured to move in the upper non-combustion chamber and to communicate with an exhaust manifold." ...