2005 Honda Cr-v Lx! Local Trade! Warranty Included! Great Reliable Car For All 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

Honda and Isuzu announce hydrogen partnership for heavy-duty trucks

TOKYO — Japan's Honda and Isuzu on Wednesday said they would jointly research the use of hydrogen fuel cells to power heavy-duty trucks, looking to expand fuel cell use by applying the zero-emission technology to larger vehicles. As part of a two-year deal, Isuzu will test Honda's fuel cell powertrain, which was designed for passenger cars, in Isuzu's commercial trucks, the companies said, which could pave the way for using the technology in a wider range of vehicles. Automakers are looking to develop more electric vehicles (EVs) to comply with tightening global emissions regulations. Many see battery-powered EVs as a solution for passenger cars in urban settings, but a growing number see hydrogen fuel cells as an effective way to power trucks, buses and other big vehicles. "Although we have done extensive R&D into passenger FCVs (fuel cell vehicles), we have not been able to study how best to apply the technology to commercial vehicles," a Honda spokesman told reporters at a briefing. "This partnership will allow us to do that." Fuel cell vehicles generate their own electricity using hydrogen stored in onboard tanks. This enables them to travel longer distances and refuel more quickly than battery EVs, while using less costly energy storage systems. "We think that FCV technology is well suited for heavier trucks which travel longer distances, and this partnership will enable us to examine this further," an Isuzu spokeswoman said, adding that the truck maker was also developing various lower-carbon powertrains including battery-electric technology for shorter-distance vehicles. With its Clarity Fuel Cell sedan, Honda is one of a handful of automakers which have developed and marketed fuel cell-powered passenger cars. Light- and medium-sized truck specialist Isuzu has for years has focused on diesel engine technology and has yet to market fully electric vehicles. But a price tag starting around $70,000 for the Clarity and scant hydrogen fueling infrastructure globally, Honda has seen limited take-up of that model and other FCVs since they began marketing them around 2015. In 2018 Honda sold just 654 Clarity FCVs, which are available only in Japan and the United States through leasing programs, compared with Honda's total annual global sales of 5.23 million cars.

McLaren, Honda confirm F1 divorce, coupling with new partners

The news broke recently that McLaren F1 and its engine partner Honda would split ways after the 2017 season. Neither party commented the news initially, but there is now a confirmation from both sides. In addition, McLaren confirmed today that they will be using Renault engines for the next three F1 seasons. This will be the first time that a McLaren Renault F1 car will compete. McLaren's Executive Chairman Shaikh Mohammed bin Essa Al Khalifa praised Honda in his statement, while acknowledging that the 2015-2017 joint venture hasn't been successful enough: "Although our partnership has not produced the desired success, that does not diminish the great history our two companies have enjoyed together, nor our continued efforts to achieve success in Formula 1. At this point in time, it is in the best interests of both companies that we pursue our racing ambitions separately." Zak Brown, McLaren's Executive Director echoed that statement, adding that "It is certainly not for the want of effort on the part of either Honda or McLaren," and that the company hopes to see Honda get back to the top. At the moment McLaren has achieved 11 points and ninth place in the standings, with Honda power. Regarding Renault, Brown said, "Today's announcement gives us the stability we need to move ahead with our chassis and technical program for 2018 without any further hesitation." This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. As for Honda, they announced today that an agreement was reached on providing engines for Scuderia Toro Rosso for the 2018 season. As Honda's president Takahiro Hachigo said, "Toro Rosso is an experienced team with a youthful energy and history of nurturing the stars of the future. Everyone at Honda is looking forward to working with Toro Rosso." About McLaren, Hachigo said, "Honda will continue the fight together with McLaren all the way to the end of the 2017 season, and then continue its F1 racing activities in 2018 and beyond." Related Video: News Source: Honda, Formula 1Image Credit: Xavier Bonilla/NurPhoto via Getty Images Motorsports Honda McLaren Renault Racing Vehicles F1 toro rosso renault sport scuderia toro rosso takahiro hachigo