Lotus Engineering, in collaboration with Jaguar, is starting up a project they're calling "Omnivore," a task which, if successful, could see traditional internal combustion engines go the way of the dodo. Lotus is planning to meld the two-cycle engine with new technologies — direct injection and a variable compression ratio — to create an engine able to run on almost any fuel. If you've ever wondered what the future of the internal combustion looked like, you're getting a peek now. Put your propeller cap on and join us for a pocket protector talk after the jump.
Used to be that a gas engine was a gas engine and a diesel was a diesel. With the advent of reliable direct injection, variable displacement cylinder heads that don't turn into grenades, and incredibly sensitive monitoring and control systems, it's now possible to run an engine in ways would have never worked in the past. Consider the main barrier to high-compression gasoline engines in the past — preignition. High octane numbers were a band-aid for that problem, but that also caused fuel economy to plummet. Direct injection virtually eliminates the issue, allowing engineers to put the fuel right into the chamber exactly when it's needed, high pressure be damned. It's even conceivable to run a gasoline engine on the diesel cycle with direct injection. ......
Forget what you "know" about two strokes, if you direct inject them, they can have a sealed crankcase.