environmentalprotectionagency
Latest
Chrysler announces battery-free hydraulic hybrid tech, compresses gas to make power
Think of a traditional hybrid and you probably think of a Toyota Prius. Then, after you've woken from your nap, you probably envision some complex system of batteries and electric motors and gears to capture power when braking and spit it back out when accelerating. Chrysler is now looking to deploy a different way, a seemingly much simpler way that's all based on hydraulics. The vehicle is outfitted with a low-pressure reservoir of hydraulic fluid and a high-pressure chamber filled with nitrogen gas. When braking, pumps move the fluid into the nitrogen chamber to compress it and then, when accelerating, that compressed gas is used to push the fluid and drive the wheels. It's a setup that was actually developed by the EPA and is currently in use by some commercial vehicles, most notably UPS trucks, but a hybrid Town & Country minivan could bring it to consumers -- though not until 2012 at the earliest. Now, there's a good chance the idea of a hybrid minivan is threatening to put you back to sleep, so we wish you pleasant dreams.
EnergyStar program certifies 'gasoline-powered alarm,' other imaginary abominations
It'd be pretty difficult for you to reach Engadget without having seen the EnergyStar logo on something along your way here. Whether it was as part of your motherboard's bootup sequence or on the box of your new TFT monitor, EnergyStar certification has become a de facto standard for most electronics being manufactured nowadays. What you might not have known -- but probably could have guessed -- is that the process for obtaining that sticker is far from bulletproof. The American Government Accountability Office has recently done a bit of spy work by putting forward imaginary products and false claims to the validating authority, and regrettably found its bogus items "mostly approved without a challenge." The auditors' conclusion was that the program is "highly vulnerable to fraud," and the stuff they've had certified would seem to corroborate that verdict. Hit up the Times article for the full story of governmental incompetence while the Department of Energy -- the body responsible for running the program -- tries to get its act straightened out. [Thanks, Adam]
