There’s a new kid on the engine block whose zero emissions just might give hydrogen fuel cells and battery electric systems a run for their money.
The Dearman Engine Company (DEC) has started development on an innovative engine technology that uses liquid air as the primary fuel. Sure, liquid air sounds like an oxymoron, but DEC is operating on some bitterly cold, cryogenic levels. By cooling the air to minus 256 degrees Fahrenheit, the air liquefies. Instead of petroleum, cryogenic air is injected into ambient heat inside the engine. It creates high-pressure gas that drives the pistons and only emits cold air as exhaust.