1996 Honda Accord Dx Sedan 4-door 2.2l on 2040-cars

Auto blog

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

This is the ad that never ends

Hondas pretty much last forever, and that's exactly the message the Japanese automaker wants to convey in this latest ad for the 2015 CR-V. It's called Endless Road, created by McGarryBowen in London, and it shows the new midsize crossover driving in a hypnotic, infinite loop. According to AdWeek, this endless road is supposed to convey Honda's never-ending quest to create the best, most advanced CR-V possible. You can see a shortened, embeddable version of the ad above, but what's really cool is the interactive portion that's only available on Honda's YouTube channel. It uses real-time weather data to show the CR-V infinitely driving through day or night, depending on what's happening in your specific part of the world. AdWeek has an interview with McGarryBowen's executive creative director, Angus Macadam, about the new spot, as well as a behind-the-scenes, making-of video, which we've embedded below. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.

Honda Civic Wagon Concept to debut at Geneva

Honda is getting warmed up for the upcoming Geneva Motor Show, with a sketch of some very Euro-flavored forbidden fruit. Seen above (click on the image to see an expanded view) is the Honda Civic Wagon Concept Model - a rather tentative name for a car that Honda claims "provides strong cues for the exterior design of the final mass produced version."
The sketch seen here is obviously very stylized, but we think that if Honda can stay true to its sleek rounded forms and aggressive silhouette, the final product could be quite fetching. Note that this is an image handed out by Honda of Europe, for a European auto show - we have every expectation that that any production-ready Civic wagon will be a Europe-only deal. Sorry, guys.
Find Honda's brief press release below, which also includes news of the European debut of the updated NSX Concept we saw at January's Detroit Auto Show, along with a diesel-powered CR-V.