How It Works

  • 2006 BMW Hydrogen 7

    Although hydrogen—and hydrogen fuel cells—could still play an important role in future transportation, even many hydrogen advocates will admit that hydrogen internal combustion probably won't. It certainly wasn’t always this way. About 15 years ago there was great hope in the idea of hydrogen internal combustion—essentially running engines not much different than gasoline ones on stores of the periodic table’s first element. BMW offered a version of the 2005-2007 BMW 7-Series, called the Hydrogen 7, with a 6.0-liter V-12 that could run on gasoline or hydrogen. It...

  • How a Reactivity Controlled Compression Ignition engine works
    Engineers find new ways to improve efficiency of gas engines: Engineering Explained

    As fast as electric cars are improving and expanding, there are some things that gas engines do better—many experts agree that gasoline engines will be around for several decades. Developing electric cars and refining gas engines aren't mutually exclusive. Vehicle electrification will...