Jul, 2010 gates, khosla invest in ecomotors efficient engine. Eco motors opoc opposed piston, opposed cylinder engine. 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. 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. Ecomotors origin professor peter hofbauer began working on opposedpiston opposedcylinder opoc engines that made more than 1 hp per pound in 2003. Ecomotors acquires katech manufacturing performance racing.
The opoc s new opposed pistonopposed cylinder direct gas exchange operation provides the well known emissions benefit of 4cycle engines, the. Chinese automaker adopts new efficient engine design. Opoc the new, green engine attracting star support the. 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. A center of gravity of the crankshaft can be displaced from the axis of rotation to at least partially overcome this imbalance. Each piston travels about half the distance of a cylinder in a conventional engine.
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. Ecomotors animation of dualmodule opoc green car congress. Such counterweighting of the crankshaft cancels a portion of the. The opoc engine how it works bright hub engineering. In this video we look at the opoc engine design and discuss the pros and cons of the design. 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. 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 powertoweight ratio for this engine is around 1. Ecomotors, the developer of a new opoc opposedpiston, opposedcylinder engine family earlier post has published an animation of a dualmodule opoc on. Ecomotors acquires katech manufacturing performance. Ems opoc design eliminates the cylinder head and valve train components of conventional engines, resulting in fewer parts and a smaller, lighter and. Ecomotors opoc two stroke engines opposed piston opposed. Apr 19, 2011 the opocs 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.
Ecomotors has a design called opoc, opposed piston opposed cylinder. This week it was granted the us8,910,597 patent for the patpoc engine. 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. Most two strokes engines are slowly being banned in the usa. 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 engine architecture is smaller and lighter than conventional engines, with 50 percent fewer components. Airplane engines animated gifs gallery and airplane engines photo by hunzee we offer this unique shook chandelier lamp chain which is very detailed. Ecomotors says that the new engine architecture, which uses two cylinders, each with two opposed pistons, delivers up to 50. It is the case of the opoc opposed piston opposed cylinder engine presented by ecomotors with fev. Navistar ecomotors diesel engine diesel power magazine. Gates, khosla invest in ecomotors efficient engine cnet. Gates, khosla invest in ecomotors efficient engine. This engine was promoted to significantly improve fuel efficiency, and substantially reduce production costs when compared to convententional internal.
Inside ecomotors revolutionary highefficiency engine. This engine configuration is the basis for the ecomotors paradigm an alternative to todays traditional internal combustion engine. The companys opoc engine breaks with conventional designs in a number of ways to reduce. 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. The reasoning of the opoc engine inventors and investors is strictly technical and scientific. Feb 23, 2011 opoc is, basically, a type of engine which can run on several types of combustion fuels, including gasoline, diesel or ethanol.
Do you know how opposed piston opposed cylinder opoc engines work. An opoc engine weighs far less and is much more compact than a conventional engine, and it has about half as many components. As compared to other conventional engines, the opoc has drastically small size. Opoc the new, green engine attracting star support. Yesterday, ecomotors announced the creation of a joint venture to start building these engines in china. The funding is to be used to further develop a new engine design called the opposed piston opposed cylinder, or opoc for short. Ecomotors receives new investment from current customer. Check out this amazing graphic that explains how opoc engines work. Heres autoblogs article, followed by the official press release. After years of false starts in green engine claims, the opoc engine just may be the real mccoy. The opoc opposed cylinder opposed piston engine of ecomotors cannot help. Mar 05, 2014 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. 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. 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.
Nov 29, 2014 patpoc like opoc and patportless engines posted in the technical forum. Opposed piston 2 stroke diesel engine animation junkers jumo 205 concept duration. Only time will tell if this new opoc engine will fulfill the potential it seems to offer. Navistar to produce ecomotors opoc engine autoevolution. Amazingly, an opoc engine produces power twice as often. Patpoc like opoc and patportless engines the technical. Bill gates revs up his investment in ecomotors aol finance. If you have any engine designs that you think would make a good video just leave a link or a. Trade secrets opposed piston opposed cylinder motor.
With the potential for 2050% better fuel economy compared to a stateoftheart, conventional turbodiesel engine, ecomotors opoc engine has the potential to revolutionize. The intake valve opens, and fresh air containing no fuel, is drawn into the cylinder. 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. 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 was an american company developing and commercializing an opposedpiston opposedcylinder opoc engine for use in cars, light trucks.
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. Ecomotors partners with zhongding power to produce. 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. The third last paragraph of the opoc section reads. 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. 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. 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. 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. Opposedpiston opposedcylinder engine developed by ecomotors. According to ecomotors, based in suburban detroit, the new opoc. 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.
When clutched out of service there are no friction or pumping losses from the second engine module. 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 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. Each module consists of two opposing cylinders per module. Car industry technology ecomotors opoc engine goauto. 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. I think the eco motors has a neat internal combustion engine. It consists of two cylinders with a piston at both ends. Unlike some innovative engine designs perpetually hyped as the engine of the future, ecomotors opoc engine seems to be making real headway. How opposed piston opposed cylinder opoc engines work duration. Unlike traditional engines, it comprises two opposing cylinders per. China to build ecomotors efficient opposedpiston engines.
Patpoc like opoc and patportless engines posted in the technical forum. Click on the above gif animations to dowload the respective fullsize. The design is just what it says, as you can see above, with 2 cylinders and 4 pistons. Mar 09, 2018 for the love of physics walter lewin may 16, 2011 duration. Dec 04, 2016 the opoc engine is an opposedpiston opposedcylinder, 2stroke engine. 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. 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. Ecomotors teams with navistar to produce turbo diesel opoc engine. 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.
Opposedpiston crankshaft system dynamics simulation and. 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. The opoc engine is a type of internal combustion engine. The patop engine provides some 20% additional time, as compared to the opoc of ecomotors, for more efficient injection, penetration. For the last few years, ecomotors has been developing a highefficiency engine to replace the conventional gas and diesel engines in use today. A diesel engine could reduce fuel consumption by 40% over a turbine engine, and ecomotors opposed piston opposed cylinder opoc. Take a look at our animation of how the opoc engine works. The opoc engine efficiency and simplicity should also make it durable, saving owners maintenance cost in the longterm. Ecomotors is developing engines that combine two opoc modulesthe twocylinder, fourpiston machine shown here. The opoc engine runs with almost two times the engine speed 3800 rpm along with a large cylinder stroke 167.
The engine is highly versatile, offers unprecedented power density and has a broad range of applications in both vehicles and machines. 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. With a twomodule application configured at the appropriate power level to deliver a combined 480 hp, the opoc unit could. The opoc looks complicated, and expensive to build, for a two stroke engine. Ecomotors had earlier indicated its first customer is an industrial engine firm in china. Ecomotors secures zhongding power as lead investor for series. As the piston rises, the air is compressed, causing its temperature to rise. Ecomotors established in 2008, ecomotors is changing the landscape of internal combustion power.
Alternate engines opoc opposed piston the workshop. Ecomotors opposedpiston engine to be built in china. Ecomotors opoc dualmodule they had a three wheel car called emc3 but i have not read much about it lately. China to build ecomotors efficient opposedpiston engines apr 20 started in 2004, achates pronounced ahkaydees has had test engines running for. When more power is needed the second engine is clutched in. The opoc engine operates on the 2cycle principle, generating one power stroke per crank revolution per cylinder. 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 opoc engine can be moduled with two, or more, engines coupled via an electric clutch between engines. 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. Ecomotors opoc engine seems to be making real headway. As of 20, the principal officers of ecomotors were. 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. Inside an opposed piston opposed cylinder opoc engine. Achates closer to production of radically efficient two.
And as proof that ecomotors is offering serious technology that really could revolutionize the way we use gasoline in the near future. Ecomotors, the developer of a new opoc opposedpiston, opposedcylinder engine family earlier post has published an animation of a dualmodule opoc on its website. Read about ecomotors animation of dualmodule opoc on. Em founder, chairman, chief technical officer, and inventor of the opoc technology, professor. This also improves the power density by another factor of 2. Animated sectional view of an opposite piston engine animierte. 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. The diesel engine was first patented in 1892 by rudolph diesel. 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.
I dont think i ever read anything about the size of the opoc engine. Ecomotors developed advanced technology to support commercial production of the opoc engine. Click here to download the commer ts gif animation, or click on the image. How opposed piston opposed cylinder opoc engines work. The diesel is similar to the four stroke, but uses a different method to ignite the fuel. 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. Ecomotors teams with navistar to produce turbo diesel opoc. Ecomotors opoc two stroke engines opposed piston opposed cylinder. Mar 12, 2014 the opoc engine architecture is smaller and lighter than conventional engines, with 50 percent fewer components. Ecomotors international, a startup based in troy, michigan.
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