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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

Euro Honda Civic Type R engines are American-made

With 306 horsepower and 295 pound-feet of torque, the latest Honda Civic Type R stands among the top of the current front-wheel drive, hot hatch heap. Sadly for the time being, it's exclusive to European buyers, and folks on this side of the pond might be waiting until 2017 to experience one. American Type R fans can be proud in the meantime, though. That's because the 2.0-liter turbocharged heart in each car doesn't come from Japan or Europe, but instead from Honda's Anna Engine Plant in Ohio. In a new video, the company is showing just a little of what goes into that production. Honda has been building engines at the Anna plant since 1985 and added the capability to produce the new, turbocharged units last year. The automaker currently employs 2,600 people there. In addition to the Type R mill, the factory makes the four- and six-cylinder powerplants for models like the Accord, Civic, CR-V, Acura ILX, TLX, and RDX. Honda intends to offer the next-gen Civic in coupe, sedan, and five-door hatch body styles in the US, and based on the company's concept, the Type R engine might come here in a two-door body. Regardless of the shape it's wrapped in, we look forward to experiencing the turbo 2.0-liter on America's roads.

Toyota, Ford and Honda again top Consumer Reports Car-Brand Perception Survey

Consumer Reports has released its annual Car-Brand Perception Survey, and the list looks awfully familiar. The top six brands are identical to last year's results, with Toyota, Ford and Honda continuing to occupy the podium. All told, Toyota walked away with 133 points, putting it 15 ahead of second-place Ford. Honda jumped 26 points this year, narrowing Ford's lead to just four points in total.
Consumer Reports polls buyers from across the country on how they see multiple brands in seven categories, including quality, safety, value, performance, design/style, technology/innovation and environmentally friendly/green. Researchers then combine the findings to come up with the total brand score.
While value and performance remain important to buyers, CR found quality and safety are still on top when it comes to significance. Scion and Mitsubishi found themselves at the bottom of the pack with the worst score of all, tied at just six points. Ram, Fiat and Mini filled out the lowest five with scores of seven, eight and 10 points, respectively. You can read the full press release below for more information, or head over to the Consumer Reports site.