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Honda patents engine with different cylinder displacements

A basic rule of engine design states that the displacement of a cylinder is equal to the engine's total displacement divided by its cylinder count. Honda, according to a recently surfaced Japanese patent, is looking to break that rule with an engine containing cylinders of different sizes. We've done our best to translate it from patent-ese. The idea is that different-sized combustion chambers give more flexibility when any combination of cylinders are deactivated, or rested. Because the different numbers can be combined in various ways, it provides more and smaller increments than would an engine with equal-displacement cylinders. Take a 2.0-liter four-cylinder, for example. Following the golden displacement rule, each of the four cylinders has a volume of 500 cc, giving displacement increments of 500 cc when any cylinder is deactivated. But suppose instead that the four cylinders displace 300, 425, 600, and 675 cc, respectively. This would give the engine 15 available displacements instead of just four, and the spacing between each option would be far less than 500cc. As a result, those different virtual displacements would provide more adjustment between power and efficiency than a cylinder-deactivation system can on a conventional engine. Honda's patent describes cylinders with equal bore size, with the displacement from cylinder to cylinder varying based on the crank throw radius – the longer the throw, the longer the stroke and the larger the displacement of that particular combustion chamber. The patent describes how the cylinder sizes would need to be arranged to spread the load on the crankshaft and presumably limit vibration that would be introduced by the different pulse magnitudes. If we're interpreting things correctly, the largest cylinder (the one with the longest crank throw radius) sits in the middle of the bank with the smaller ones alternating on either side as they decrease in displacement. This concept is described for multi-cylinder inline and V-type engines of various sizes. The patent was filed in March of 2014 and published in January of this year. Whether or not this arrangement will reach production is of course unknown, but the advantages in terms of both efficiency and power seem promising. Related Video: News Source: Japan Patent Office via Auto Guide Green Honda Fuel Efficiency Technology patent

Honda Civic Coupe to join 2016 Red Bull Global Rallycross season

Red Bull Global Rallycross is about to get another competitor. Honda has announced that it will campaign the 2016 GRC season with its new Civic Coupe, and rather than just put out a press release, it's gone ahead and given us a look at the two-door's racing livery. Ford, Chevrolet, Volkswagen, and Subaru – be prepared. Based loosely on the production Civic Coupe, Olsbergs MSE and Honda Performance Division put in the wrench time to turn the ho-hum standard road car into a 600-horsepower, all-wheel-drive monster that can hit 60 in a hypercar-humiliating 1.9 seconds. And like all GRC cars, it will have no trouble managing some serious jumps. Piloting this hilariously potent coupe will be Sebastian Eriksson and 2014 series champion Joni Wiman. Wiman is Finnish, so his GRX championship should come as no shock. We have to say, compared to the GRX cars found in Europe, this Civic looks remarkably tame. We'd have no issue visualizing the body tweaks on this racer on a production Civic Type R. Then again, we're comparing it with the last big-time GRX entry we heard about – Ken Block's Ford Focus RS, which is running in FIA rallycross. According to Honda, OMSE and HPD will have the Civic Coupe GRX car ready for the season opener on May 21 and 22 at Phoenix's Wild Horse Pace Motorsports Park. View 4 Photos Related Video: Honda Debuts 2016 Civic Coupe Racing Livery to Compete in 2016 Red Bull Global Rallycross Series Will campaign the all-new Civic Coupe in partnership with Red Bull and Olsbergs MSE Mar 22, 2016 - NEW YORK Today Honda unveiled the new racing livery for its Civic Red Bull Global Rallycross racecar, announcing plans to campaign the all-new turbocharged 2016 Civic Coupe in the 2016 series in partnership with Red Bull and championship-winning race team Olsbergs MSE. The Honda Civic Red Bull GRC team will begin racing on May 21 in Phoenix at the first event of the season. Developed from a production-model 2016 Civic Coupe chassis by renowned builders and racers Olsbergs MSE (OMSE) with technical assistance from Honda Performance Development (HPD), the all-new Civic Red Bull GRC car is built to withstand the rigorous demands of racing in a series that emphasizes repeated aggressive acceleration and varied terrain. The car will boast more than 600 horsepower, turn in a 0-60 mph time of 1.9 seconds and is designed to handle the 70 foot table-top jumps featured on each racetrack.

Japan wants to boost fuel-cell numbers 100x by 2020

How many hydrogen refueling stations will Japan need? Can each station handle 250 fuel-cell vehicles? They can in the Japanese government's new plans for hydrogen fuel-cell vehicle growth and station deployment throughout the country. With Prime Minister Shinzo Abe continuing to trumpet fuel cells as the advanced powertrain of the future, the government says the number of fuel-cell vehicle on its roads will multiply by 100 within the next four years, according to the Japan Times. Specifically, Japan, which is home to about 400 fuel-cell vehicles today, hopes to have 40,000 by 2020 and a whopping 800,000 by 2030. More importantly, Japan has 80 stations either in operation or slated to be deployed soon, and hopes to double that number by the end of the decade. For perspective's sake, the US has about two-dozen publicly accessible hydrogen fuel cell stations today, according to US Department of Energy. The newer ones are can dispense 100 kilogram a day, which can fuel 20-25 cars a day. Japanese automakers Honda and Toyota appear to be trying to do their parts in the H2 plan. Earlier this month, Honda started leasing its Clarity fuel-cell vehicle in Japan and is planning to bring them to California later in the year. The vehicle, which is priced at about $68,000 in Japan, is said to be able to travel about 466 miles on a full hydrogen tank, per the more lenient Japanese driving cycle (roughly 300 miles on the US scale). Honda will start production at a rate of 200 vehicles a year. With skin in the game, though, Honda indicated late last year that it was frustrated with what it said was the slow pace of fuel-cell station deployment in Japan, according to Bloomberg News. Honda was collaborating with hydrogen supply company Iwatani Corp. on what they called a "Smart Hydrogen Station," though that concept was in its testing phase as of last December. The Mirai also started sales in Japan and debuted in limited numbers in California last year. Last fall, Toyota set a rather lofty goal of selling 30,000 fuel-cell vehicles a year by 2020 as part of its Toyota Environmental Challenge 2050. Related Video: News Source: Japan TimesImage Credit: YOSHIKAZU TSUNO via Getty Images Green Honda Toyota Hydrogen Cars