US Patent Issued to Southwest Research Institute on July 29 for "Hydrogen fuel pressure energy recovery for hydrogen engine vehicles" (Texas Inventor)

ALEXANDRIA, Va., July 30 -- United States Patent no. 12,372,037, issued on July 29, was assigned to Southwest Research Institute (San Antonio).

"Hydrogen fuel pressure energy recovery for hydrogen engine vehicles" was invented by Edward M. Smith (San Antonio).

According to the abstract* released by the U.S. Patent & Trademark Office: "A fuel system for a hydrogen-fueled internal combustion engine vehicle. A compressor/expander is installed in fluid connection between the fuel tank and the engine's fuel delivery system. The compressor/expander operates in compressor mode when the hydrogen fuel in the fuel tank is below a pressure desired for fuel delivery. It operates in expander mode when the hydrogen fuel in the fuel tank is above the de...