Icom North America, a provider of alternative fuel systems, tanks, and components, recently secured three new U.S. patents that reinforce its commitment to advancing technology in the field. The patents cover innovative systems designed to improve engine performance, reduce emissions, and enhance the use of alternative fuels. The first patent introduces a high-flow inline air/fuel vortex injection system for internal combustion engines, aiming to optimize air and fuel delivery for various fuels like natural gas, propane, DME, ammonia, and hydrogen. The second patent focuses on a high-pressure regulated fuel return apparatus for engines using direct injection systems, offering precise fuel flow regulation to prevent vapor accumulation. The third patent presents an LPG fuel supply system with vapor lock prevention, featuring an external fuel pump design for improved safety and maintenance. These developments are lauded for their potential to achieve higher diesel displacement, deliver fuel savings, convert direct injection engines effectively, and expand applications of liquid propane injection in different markets.