US Patent Issued to MOTOR DEVELOPMENT INTERNATIONAL on July 8 for "Compressed-air engine with integrated active chamber and active distribution with balanced valve" (French Inventors)

ALEXANDRIA, Va., July 9 -- United States Patent no. 12,352,171, issued on July 8, was assigned to MOTOR DEVELOPMENT INTERNATIONAL SA (Luxembourg).

"Compressed-air engine with integrated active chamber and active distribution with balanced valve" was invented by Cyril Negre (Nice, France) and Christophe Hurth (Nice, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is an active chamber engine including a cylinder fed with compressed air, a piston, a cylinder head which includes an intake duct, an intake orifice, an intake valve, wherein the volume of the cylinder is divided into an included active chamber and an expansion chamber and the torque and the speed of the engine are controlled by the o...