A more efficient internal combustion engine that uses liquid Oxygen as an oxydizer in a 2-stroke design without compression. The design converts explosive energy into potential engergy of springs in a way that more closely matches the characteristics of fuel explosion instead of engine mechanics, Such a design loses much less energy to heat and is much lighter due to vastly reduced stress on the mechanical system. Each spring can lift approximately 100 pounds over about 6 inches. 100 pounds times 7 equals roughly 700 foot pounds of torque for output (my math could be way off on that… and I'm totally guessing at spring performace). This potential energy is converted to electricity via electrical generator. This allows the engine to run at optimal RPM continuously for maximum efficiency. The primary intended application is auxillary power for hybrid vehicles. I've still got to figure out a way to efficiently generate liquid Oxygen :). Any ideas are welcome!