Britain developed a micro-engine is expected to replace the battery – micro-motors, the United Kingdom – Machinery Industry
Recently announced University of Birmingham, manufacturing and mechanical engineering university college lecturer, Chinese scientists led by Dr. Jiang Kaichun research group developed a millimeter-sized micro- Engine . Do not look at this small enough to be placed on the engine cover nails look like much, but the energy provided is 300 times that of ordinary batteries.
About their research results, Jiang Kaichun showed great interest. He says that when they designed this engine's main purpose is to replace the traditional battery. Since the battery has been invented, although smaller and portable electronic devices has played an important role, but the battery charge capacity is limited, in order to continue the work of electronic equipment must be regularly replaced or charged, in the energy supply of the persistence and continuity of there are some restrictions on gasoline and other fuels in this regard carbohydrates showed a clear advantage. In the development of the engine before they have specialized in different types of batteries and fuel were compared to results found in the weight of the same case, gasoline, hydrogen and other fuels to provide energy carbohydrates, 300 times the average for the battery. This means that the same is to supplement the primary energy, using micro-motor-driven device, battery-powered device than a much longer working hours.
In addition, it has been calculated to create the energy consumption of a battery than the battery itself, the energy provided by a large 2000-fold, if further processing of used batteries by taking into account the energy consumption, then the battery cost is higher. In contrast, micro-engine is much simpler, as long as it is added to a fuel, it can continuously work months or even a year or two. Not only eliminates the need for frequent battery changes or recharging the battery trouble, and the device itself could be more compact and lightweight.
About engine design and manufacturing, Jiangkai Chun said the manufacture of micro-engine is very different from conventional engines. Conventional engine is usually full of noise produced by the plant in, and micro-engine is at the university and other research institutions in the clean room finished. They are now developing a kind of micro-engines Internal combustion engine This engine and American scientists developed a different micro-turbine engine, the internal temperature is much higher. In order to withstand the engine running as high as 1,000 degrees Celsius resulting heat, they selected materials in the manufacture of alumina and silicon carbide. Both materials can be resistant to temperatures above 1,500 degrees Celsius, which was provided to ensure the safe operation of the engine.
As micro-engine compact, and some internal components only a few microns, so the production process, they have adopted similar with the production of large scale integrated circuit technology. The difference is that required components do large scale integrated circuits as small as possible, but use the same process of production engines, you need bigger parts as possible. Because of fuel combustion in the engine room needs some space too small to ignite the fuel will not be able, requiring the engine components to maintain a certain size. To achieve this, they use a lot of new technology. One of the most unique features is their "big thick layer of light plastic processing" technology. Using this technology, now they are processing the material thickness has reached about 1 mm, which is very advanced in the world of. In order to meet the needs of different devices, scientists can also output power of this engine to adjust. Approach is not a production of engines of different sizes, but the number of the same specifications as the engine output to connect different energy. For example, for mobile phones provide enough energy may be an engine, providing power for the laptop you need to put together a number of engines to work Caixing.
Micro-engine wide range of applications, in addition to mobile phones and portable computers can replace the battery, the military, medical and engineering manufacturing and other fields have wide applications. For example, with the increase in portable electronic devices, this should be traveling light soldiers will now have to carry more than 30 kg backpack in front of the war, including at least 1 / 8 load is designed to provide energy for the electronic equipment batteries. Some used for reconnaissance and liaison aircraft and micro-micro-robots as they have to carry heavy batteries and their role in severely affected. If these heavy batteries for micro-engines, their efficiency will be greatly changed. In the medical field, this engine also has a vast battlefield.
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