Jul 20, 2010 ecomotors opoc the opposed pistonopposed cylinder is a sort of engine which can run on several types of combustion fuels, including gasoline, diesel or ethanol. The patented opoc twostroke engine using opposed pistons in a modular boxer cylinder layout is the brainchild of peter hofbauer, former head of powertrain development at volkswagen ag and now chairman and chief technology officer of detroitbased ecomotors international. Mar 12, 2014 the opoc engine architecture is smaller and lighter than conventional engines, with 50 percent fewer components. With a twomodule application configured at the appropriate power level to deliver a combined 480 hp, the opoc unit could. Ecomotors says that the new engine architecture, which uses two cylinders, each with two opposed pistons, delivers up to 50. Opoc the new, green engine attracting star support the. China to build ecomotors efficient opposedpiston engines. This engine configuration is the basis for the ecomotors paradigm an alternative to todays traditional internal combustion engine. In this video we look at the opoc engine design and discuss the pros and cons of the design. The engine is highly versatile, offers unprecedented power density and has a broad range of applications in both vehicles and machines. An opposedpiston, opposedcylinder engine in which the intake and exhaust pistons are symmetrically arranged has a small inertial force imbalance in the direction of reciprocation of the pistons.
Ecomotors acquires katech manufacturing performance. Ecomotors was an american company developing and commercializing an opposedpiston opposedcylinder opoc engine for use in cars, light trucks, commercial vehicles, aerospace, marine, agriculture, auxiliary power units, generators, etc. When more power is needed the second engine is clutched in. Ecomotors opoc dualmodule they had a three wheel car called emc3 but i have not read much about it lately. The powertoweight ratio for this engine is around 1. According to the initial results for the em100 version of the engine, this opoc unit developed by ecomotors outputs more than 1 hp per pound. Ecomotors claims to have solved many of these problems with their prototype model em100, opoc engine which produces 325 horsepower and 664 poundsfeet of torque, yet weighs only 296 pounds. Ecomotors was an american company developing and commercializing an opposedpiston opposedcylinder opoc engine for use in cars, light trucks. Moreover, an opoc engine is just half the size and weight of a comparably powered conventional engine, which reduces the burden of moving its own mass. Opposedpiston crankshaft system dynamics simulation and. As the piston rises, the air is compressed, causing its temperature to rise. Do you know how opposed piston opposed cylinder opoc engines work. Ecomotors opoc is a pair of junkers doxford engines see at the patpoc engine in the pattakon web site sharing the same crankshaft for the sake of a better balancing the second order unbalanced forces of the junkers doxford are completely balanced by the arrangement of the opoc. Chinese automaker adopts new efficient engine design.
For the opposedpiston and opposedcylinder opoc diesel engine with higher power density, recently it has drawn even more attentions than ever in several developed countries, such usa and germany, et al, which is regarded as a technical innovation to further reduce emission, and decrease fuel consumption, attributed to outstanding thermal efficiency and engine package downsizing. An opoc engine weighs far less and is much more compact than a conventional engine, and it has about half as many components. For the last few years, ecomotors has been developing a highefficiency engine to replace the conventional gas and diesel engines in use today. Ecomotors opoc engine seems to be making real headway. Check out this amazing graphic that explains how opoc engines work. Airplane engines animated gifs gallery and airplane engines photo by hunzee we offer this unique shook chandelier lamp chain which is very detailed. Peter hofbauer came up with the idea when he was at volkswagen, the outboard pistons take the place of the cylinder head and each piston only travels half the distance necessary for the full. The opoc s direct gas exchange operation provides the emissions benefits of fourcycle engines, the simplicity benefits of twocycle engines, the power density of the opposed piston engine, and the developments in electronics and combustion technology all tied together in a proprietary engine architecture. A center of gravity of the crankshaft can be displaced from the axis of rotation to at least partially overcome this imbalance. When clutched out of service there are no friction or pumping losses from the second engine module. Ecomotors opposedpiston engine to be built in china.
After years of false starts in green engine claims, the opoc engine just may be the real mccoy. A diesel engine could reduce fuel consumption by 40% over a turbine engine, and ecomotors opposed piston opposed cylinder opoc. Car industry technology ecomotors opoc engine goauto. Click here to download the commer ts gif animation, or click on the image. The diesel engine was first patented in 1892 by rudolph diesel.
As compared to other conventional engines, the opoc has drastically small size. This week it was granted the us8,910,597 patent for the patpoc engine. Ecomotors had earlier indicated its first customer is an industrial engine firm in china. The opoc engine is an opposedpiston opposedcylinder, 2stroke engine. If you have any engine designs that you think would make a good video just leave a link or a. Such counterweighting of the crankshaft cancels a portion of the. Ecomotors partners with zhongding power to produce. With the potential for 2050% better fuel economy compared to a stateoftheart, conventional turbodiesel engine, ecomotors opoc engine has the potential to revolutionize. The opoc s new opposed pistonopposed cylinder direct gas exchange operation provides the well known emissions benefit of 4cycle engines, the. Oct 22, 2015 ecomotors receives new investment from current customer, zhongding power, adding to the funding from bill gates and khosla ventures business wire october 22, 2015 1.
Inside an opposed piston opposed cylinder opoc engine. Unlike traditional engines, it comprises two opposing cylinders per. The patpoc can be seen as a short simplified opoc opoc stands for opposed cylinder opposed piston and is the engine of ecomotors bill gates. Unlike some innovative engine designs perpetually hyped as the engine of the future, ecomotors opoc engine seems to be making real headway. Ecomotors teams with navistar to produce turbo diesel opoc. Navistar ecomotors diesel engine diesel power magazine.
Ecomotors secures zhongding power as lead investor for series. Click on the above gif animations to dowload the respective fullsize. Bill gates revs up his investment in ecomotors aol finance. Trade secrets opposed piston opposed cylinder motor. I dont think i ever read anything about the size of the opoc engine.
Opposed piston 2 stroke diesel engine animation junkers jumo 205 concept duration. The marchetti cam engine animated gif by james hunzeker airplane engines animated gifs gallery and airplane engines photo by hunzee we offer this unique shook chandelier lamp chain which is very detailed. Only time will tell if this new opoc engine will fulfill the potential it seems to offer. It is the case of the opoc opposed piston opposed cylinder engine presented by ecomotors with fev. The opoc engine runs with almost two times the engine speed 3800 rpm along with a large cylinder stroke 167. This patented design creates a groundbreaking internal combustion engine family architecture that will run on a number of different fuels, including gasoline, diesel and ethanol. Mar 09, 2018 for the love of physics walter lewin may 16, 2011 duration. Yesterday, ecomotors announced the creation of a joint venture to start building these engines in china. The opoc engine architecture is smaller and lighter than conventional engines, with 50 percent fewer components. The opoc engine efficiency and simplicity should also make it durable, saving owners maintenance cost in the longterm. According to ecomotors, based in suburban detroit, the new opoc. Opoc the new, green engine attracting star support. I think the eco motors has a neat internal combustion engine.
The opoc engine operates on the 2cycle principle, generating one power stroke per crank revolution per cylinder. Mar 02, 2017 for the opposedpiston and opposedcylinder opoc diesel engine with higher power density, recently it has drawn even more attentions than ever in several developed countries, such usa and germany, et al, which is regarded as a technical innovation to further reduce emission, and decrease fuel consumption, attributed to outstanding thermal efficiency and engine package downsizing. Jun 01, 2011 right now, navistar and ecomotors engineers are busy testing and developing a new version of the opposedpiston opposedcylinder engine opoc, so we dont have those specifications yet, but. Ecomotors, the developer of a new opoc opposedpiston, opposedcylinder engine family earlier post has published an animation of a dualmodule opoc on. How opposed piston opposed cylinder opoc engines work duration. The companys opoc engine breaks with conventional designs in a number of ways to reduce. Ems opoc architecture uses fewer parts and offer significant increases in fuel efficiency, reductions in weight, emissions, and cost compared to the conventional internal combustion engines. The funding is to be used to further develop a new engine design called the opposed piston opposed cylinder, or opoc for short. They have reached an agreement with navistar to build a 2 module turbo diesel version for class 8 trucks, designed to produce about 480 hp, it could deliver as much as 45% better fuel efficiency than the. Ecomotors teams with navistar to produce turbo diesel opoc engine. Patpoc like opoc and patportless engines posted in the technical forum. Ecomotors developed advanced technology to support commercial production of the opoc engine.
The intake valve opens, and fresh air containing no fuel, is drawn into the cylinder. The opoc engine technology developed and owned by ecomotors can deliver the same power level as conventional engines at half the size, a lower cost, and lower emissions. Most two strokes engines are slowly being banned in the usa. Opposedpiston opposedcylinder engine developed by ecomotors. Ecomotors international, a startup based in troy, michigan. Compared to the dramatic technological advances weve seen in other areas, the internal combustion engines that most vehicles use today havent fundamentally changed in over a century. The third last paragraph of the opoc section reads.
Nov 29, 2014 patpoc like opoc and patportless engines posted in the technical forum. Read about ecomotors animation of dualmodule opoc on. Ecomotors receives new investment from current customer. Heres autoblogs article, followed by the official press release. Alternate engines opoc opposed piston the workshop. According to the company the twostroke engine is up to 50 percent more efficient than most vehicle engines and pollutes far less than a conventional twostroke engine. The patop engine provides some 20% additional time, as compared to the opoc of ecomotors, for more efficient injection, penetration. Inside ecomotors revolutionary highefficiency engine. Ecomotors origin professor peter hofbauer began working on opposedpiston opposedcylinder opoc engines that made more than 1 hp per pound in 2003. It consists of two cylinders with a piston at both ends.
Ecomotors animation of dualmodule opoc green car congress. The design is just what it says, as you can see above, with 2 cylinders and 4 pistons. Ecomotors, the developer of a new opoc opposedpiston, opposedcylinder engine family earlier post has published an animation of a dualmodule opoc on its website. Ecomotors is developing engines that combine two opoc modulesthe twocylinder, fourpiston machine shown here. And as proof that ecomotors is offering serious technology that really could revolutionize the way we use gasoline in the near future. Achates closer to production of radically efficient two. Gates, khosla invest in ecomotors efficient engine cnet. The reasoning of the opoc engine inventors and investors is strictly technical and scientific. Jul, 2010 gates, khosla invest in ecomotors efficient engine.
Animated sectional view of an opposite piston engine animierte. Take a look at our animation of how the opoc engine works. Navistar to produce ecomotors opoc engine autoevolution. The last bit of news out of ecomotors was that their first and largest customer, zhongding power, had invested in the company during a series d funding. Have you ever heard anything about ecomotors opoc engines. They have reached an agreement with navistar to build a 2 module turbo diesel version for class 8 trucks, designed to produce about 480 hp, it could deliver as much as 45% better fuel efficiency than the standard heavy. Each module consists of two opposing cylinders per module. Feb 23, 2011 opoc is, basically, a type of engine which can run on several types of combustion fuels, including gasoline, diesel or ethanol. Each piston travels about half the distance of a cylinder in a conventional engine. Ecomotors established in 2008, ecomotors is changing the landscape of internal combustion power. Dec 04, 2016 the opoc engine is an opposedpiston opposedcylinder, 2stroke engine. The opoc engine is a new architecture of ic engines and is growingly paid attention to due to its remarkable advantages in comparison with conventional 4 stroke engines. Peter hofbauer chairman, chief technology officer and inventor of the opoc engine, donald runkle chief executive officer and amit soman president and chief operating officer. This also improves the power density by another factor of 2.
Jul 14, 2010 the patented opoc twostroke engine using opposed pistons in a modular boxer cylinder layout is the brainchild of peter hofbauer, former head of powertrain development at volkswagen ag and now chairman and chief technology officer of detroitbased ecomotors international. How opposed piston opposed cylinder opoc engines work. The opoc engine how it works bright hub engineering. If this engine is able to deliver 100 miles per gallon in a passenger car, as its developers hope it will, it will be a great success. Mar, 2010 ecomotors international, a khoslafunded startup working to commercialize an opoc opposedpiston, opposedcylinder engine family showcased its em100 100mm cylinder bore base module implementation at the arpae energy innovation summit in washington dc last week. The opoc engine is a type of internal combustion engine. Ems opoc design eliminates the cylinder head and valve train components of conventional engines, resulting in fewer parts and a smaller, lighter and.
Eco motors opoc opposed piston, opposed cylinder engine. China to build ecomotors efficient opposedpiston engines apr 20 started in 2004, achates pronounced ahkaydees has had test engines running for. After the watching the opoc engine run and shooting some exclusive video for ttac, i was introduced to ceo don runkle runkle joined the company last year and is convinced that in the long run no other energy source can compete with oil, and that the internal combustion engine will be here for a long time, albeit with an entirely new architecture, the opoc. Ecomotors opoc two stroke engines opposed piston opposed. The diesel is similar to the four stroke, but uses a different method to ignite the fuel. Em founder, chairman, chief technical officer, and inventor of the opoc technology, professor. As of 20, the principal officers of ecomotors were.
One of the most exciting new types of internal combustion engines is the opposedpiston opposedcylinder engine, and if you cant remember all those tonguetwisting syllables you can just call it an opoc engine. The opoc looks complicated, and expensive to build, for a two stroke engine. The opoc engine can be moduled with two, or more, engines coupled via an electric clutch between engines. Ecomotors opoc two stroke engines opposed piston opposed cylinder. Ecomotors, developer of a unique 2cycle engine with two pistons per cylinder has indicated that it is concentrating its development work on a two module 300 hp, 600 ft lb torque diesel truck engine. This engine was promoted to significantly improve fuel efficiency, and substantially reduce production costs when compared to convententional internal. Amazingly, an opoc engine produces power twice as often. Ecomotors acquires katech manufacturing performance racing.
Ecomotors has a design called opoc, opposed piston opposed cylinder. A site dedicated to animation of mechanisms, pneumatic, hydraulic and electronic components opoc engine home engines gears indexing pumps linkages couplings pneumatics electronics electricity arduino reciprocations straight line cams thermodynamics power. The patop engine with a basic module comprising one only cylinder and two only opposed pistons is better balanced than the twoopposedcylinders fouropposedpistons basic module of the opoc engine of ecomotors. Gates, khosla invest in ecomotors efficient engine. The opoc opposed cylinder opposed piston engine of ecomotors cannot help.
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