On June 23, 2011, the reporter interviewed David M. Johnson, president and CEO of Akches Power in the United States. He brought a revolutionary engine design for Chinese reporters - opposed-piston two-stroke diesel engines. The reporter learned that the opposing engines of Japan's Fuji Heavy Industries and Porsche Germany are crankshaft linkages in the middle, pistons and cylinder heads at both ends, and Aktisth’s engine pistons form opposites in the cylinder barrel, eliminating the need for cylinders. Cover mechanism.
The core technology lies in the cylinder design
Johnson introduced that the design of the opposed-piston two-stroke diesel engine was inspired by aeroengines that have been proven to be successful. The most important difference from traditional engines is in the combustion system. Its most advanced core technology is the patented cylinder design. In the design structure, the opposed-piston engine is simple and compact, the braking efficiency is expected to exceed 45%, and the nitrogen oxide emission is low. Since the use of parts is reduced and less raw materials are used, the engine's exhaust capacity can be made smaller and the entire engine can be made lighter; at the same time, however, traditional materials and manufacturing processes are used for manufacturing and manufacturing is inheritable. . A comparison of weight and cost shows that compared to a four-stroke engine with the same performance, the weight of the two-stroke opposed-piston engine is reduced by about 34% and the cost is reduced by about 12%.
Thanks to the design without cylinder head and valveless mechanism and the use of a breakthrough combustion system meter, the Arcettis opposed-piston engine reduces thermal energy and frictional losses compared to conventional four-stroke engines. There are obvious advantages. Test results show that this model can meet the requirements of US EPA10 and EU VI emission regulations; compared with the benchmark diesel engine, the fuel efficiency is increased by 15%, and compared with the corresponding gasoline engine, it is increased by about 55%. According to a test report provided by Acetes, the lowest fuel consumption rate of the Acettis opposed-piston engine is 195.3 grams compared with the benchmarked Ford 6.7 litre conventional four-stroke diesel engine. /kWh, compared with the benchmark engine's minimum fuel consumption rate of 239.9 g/kWh, a reduction of 18.6%.
The other advantage of the Arctice opposed-piston engine is that it does not require any fuel quality, because the model is very flexible in design and configuration.
World-class competitiveness of the company's team According to a US study, the cost of improving fuel efficiency (reducing CO2 emissions) is extremely high if conventional engines are used. For example, to achieve a 10% improvement in fuel efficiency, the cost per vehicle is typically $16,740, which does not include the cost of about $10,000 per vehicle needed to reduce nitrogen oxides and particulate emissions. Therefore, it can be said that any new type of engine that can fully improve the performance of the engine and have the ability to reduce costs, may become the future market choice. The experimental data proves that Achattis opposed two-stroke diesel engine can improve its performance at least by more than 10% compared with the traditional 6-cylinder diesel engine.
Johnson said that Achattis opposed-piston engine is suitable for all commercial vehicles and 90% of passenger cars, and can provide a variety of different engine specific structures and appearance size shapes according to the needs of host manufacturers and vehicle layout requirements. Since Achattis Power can record all important engine parameters and can detect battery conditions, an opposed-piston engine is also a model that meets the requirements of hybrid vehicles and can be adapted to future biomass applications.
As an engine design company and technology provider, under the reporter's question, Johnson compared Achilles power to existing engine design companies. According to reports, four members of Aktis’s Technical Advisory Committee are researchers of the American Society of Automotive Engineers, two are members of the National Engineering Institute of the United States; the company has 52 engineers and scientists including 10 doctors, and the world First-rate equipment. He believes that Achatis is also very competitive even with world-famous engine design companies such as AVL, FEV, Ricardo and others. Johnson specifically emphasized that the Achattis opposed-piston engine is not a single product, but a system integration, a new design with more than 800 innovative technologies.
Expect to cooperate with visionary mature vendors
Founded in 2004, Aktis Power Company was founded by Dr. Jim Lemke, Academician of American Academy of Engineering Academy (NAE) and headquartered in San Diego, California. The Pistons' two-stroke diesel engine project started its research and development in 1998. It matured in 2004 and began to do the corresponding engine tests in 2005.
According to Johnson's introduction, Achattis opposed-piston engine has passed the test and verification of performance, and the testing time exceeds 1900 hours. At present, Achates Dynamics and its opposed-piston engine project have attracted more than 60 million investment companies including Madrone Capital, Sequoia Capital and Rockport Capital. Dollar investment.
Generally, a newly-designed engine takes about 5 years from R&D to production, which is a relatively slow process. Achattis Power is currently in the stage of simultaneous promotion to the global engine and vehicle manufacturers after it has matured. It is understood that the value of the global engine market reaches 300 billion U.S. dollars, and Aktisity Motors first aims at the commercial vehicle engine market. The first step will be to focus on the field of medium and heavy commercial vehicles. Johnson revealed that negotiations with the world's largest commercial vehicle manufacturer are ongoing.
The original meaning of the name Achates is "faithful friend." Johnson said that Accentis Power adopts a one-to-one cooperation approach, hoping that the Chinese market can skip the old path taken by the European and American markets, and expects Chinese manufacturers with farsightedness and good manufacturing and process capabilities to seize this. Take advantage of innovative technology opportunities. He also repeatedly stressed that the process of cooperation between Aktis Teskin and any of its partners is very transparent. Let them know exactly where the risks lie.
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