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Fuel efficiency


— Automotive

Honda's new 1.6 liter diesel engine is lightest in its class

By - November 20, 2012 10 Pictures
Honda apparently wants to show that good things come in small packages, so it's announced that it will be installing its 1.6-liter i-DTEC diesel engine in the 2013 Civic manufactured at the company’s facility in Swindon, U.K. Specifically designed for the European market, the 1.6-liter i-DTEC is the lightest in its class, yet puts out 120 PS (118 bhp) and 300 Nm (221 ft-lb) of torque. Read More
— Automotive

Hyundai and Kia overstated mileage on 13 models

By - November 6, 2012 1 Picture
Hyundai Motor America and Kia Motors America have overstated the fuel economies on the window stickers of some 900,000 automobiles from 13 models sold since late 2010, The Detroit News reports. An investigation by the U.S. Environmental Protection Agency (EPA) found that the results of its own tests did not always tie up with the companies' claimed mileages, and as a result Hyundai and Kia are lowering fuel economy estimates on what is reportedly a majority of current models. Read More
— Military

U.S. Navy investigates use of fuel-saving Rotating Detonation Engines

By - November 4, 2012 2 Pictures
With around 430 gas-turbine engines on 129 of its ships burning about US$2 billion worth of fuel every year, the U.S. Navy is examining the potential of using Rotating Detonation Engines (RDEs) to improve fuel consumption and cut costs. Researchers at the Naval Research Laboratory (NRL) estimate that retrofitting RDEs to its fleet could save the Navy approximately 300 to 400 million dollars a year. Read More
— Bicycles

Prototype wheels could take the flats out of mountain biking – and driving

By - October 30, 2012 5 Pictures
Puncture-proof tires that incorporate a flexible internal matrix instead of air are nothing new, in and of themselves. In the past several years, we’ve seen prototypes from the likes of Michelin, Amerityre, Goodyear and Bridgestone. Colorado-based Britek Tire and Rubber has also been developing something similar, known as the Energy Return Wheel. While the ERW is intended mainly for cars, the company recently released a video showing a prototype set of the wheels in use – on a mountain bike. Read More
— Automotive

LiquidPiston unveils 40-bhp X2 rotary engine with 75 percent thermal efficiency

By - October 21, 2012 10 Pictures
The internal combustion engine (ICE) has had a remarkably successful century and a half. Unfortunately, it’s notoriously inefficient, wasting anywhere from 30 to 99 percent of the energy it produces and spews unburned fuel into the air. Last week, Gizmag interviewed Dr. Alexander Shkolnik, President and CEO of LiquidPiston, Inc. about its LiquidPiston X2 - a 40-bhp rotary engine that burns a variety of fuels and requires no valves, cooling systems, radiators or mufflers, yet promises a thermodynamic efficiency of 75 percent. Read More
— Automotive

New engine-making tool should result in more fuel-efficient cars

By - October 8, 2012 1 Picture
You may think that the pistons in your car’s engine slide in and out of the cylinder bore holes smooth as silk, but according to researchers from Germany’s Fraunhofer Institute for Machine Tools and Forming Technology, the process could be smoother. If it was, your car would burn less gasoline, and require less oil for lubrication. Well, those researchers have developed an engine-building tool, designed to minimize engine cylinder friction. Read More
— Automotive

Lamborghini Aventador LP 700-4 gets start/stop system

By - October 2, 2012 12 Pictures
Lamborghini’s Aventador LP 700-4 is doing something that supercars aren't exactly famous for – it’s saving fuel. Not satisfied with a car that can do 0 to 100 km/h (0-62 mph) in 2.9 seconds and hit a top speed of 350 km/h (217 mph), Lamborghini has fitted the Aventador LP 700-4 with a fuel economy system that includes an automatic engine start/stop and a cylinder deactivation system. Read More

2013 Toyota Avalon sheds 110 pounds

With U.S. mileage standards set to rise to 54.5 miles per gallon by 2025, Carmakers are working flat out to make their vehicles burn as little fuel as possible. One approach is to develop new drivetrains based on hybrid or all-electric technology, but regardless of the platform, weight reduction remains very much a part of the equation. Toyota is pointing to its 2013 Avalon as an example of its progress on this front, having designed the mid-size sedan with 110 pounds (49.89 kg) less weight than the 2012 model. Read More
— Aircraft

Airbus unveils its "Smarter Skies" vision for the future of sustainable aviation

By - September 9, 2012 8 Pictures
A new report drafted by Airbus as part of its “Smarter Skies” initiative sees the aircraft manufacturing company looking toward 2050 and beyond, in order to consider what can be done to meet the expected growth in future air travel sustainably. The ambitious plans put forward include assisted take-off, free-glide landings, and aircraft flying in formation. Read More
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