At present, the models on the market are full of various power modes. More and more models use new energy or hybrid power, just like the upcoming new Camry. To be honest, Che Shu himself is a "dead loyalty" of a traditional internal combustion engine. Selfishly, I really don't want to see the internal combustion engine disappear in my lifetime. However, at least in China, it seems that the development of new energy has become a major trend due to various reasons that cannot be explained or explained. The emission requirements and the on-coming fuel consumption requirements, the state’s protection and support for self-owned brands, and so on, made Honda’s “self-priming king†turbocharged, allowing Mazda to knock on the Chuangchi blue-sky engine. Hit "death" to increase the compression ratio, and constantly develop various "black technologies." Regardless of how it is done, these are all to increase engine thermal efficiency. What is the engine thermal efficiency? An internal combustion engine is a machine that converts the heat energy generated by fuel combustion into kinetic energy, but there is a large heat loss during the conversion process. For example, the exhaust, coolant, and oil take away the heat; for example, the internal parts of the engine (pistons, crankshafts, camshafts, etc.) also lose energy, and in addition to the above, there are many other reasons that affect the thermal efficiency. How much heat energy translates into effective kinetic energy. Increasing the thermal efficiency is easy to say, but actually it is extremely difficult to actually increase 1%. The average gasoline engine, 1 unit of gasoline, will eventually provide only 30% of the power. Direct injection technology, exhaust gas recirculation, lean combustion, and the like are all ways to increase thermal efficiency, but how these technologies improve engine thermal stability while ensuring engine stability is another problem. Toyota started with the internal structure of the engine. The goal is to increase the intake efficiency, improve the quality of combustion, and increase the efficiency of intake air to reduce losses. Improve intake efficiency Toyota's shape design changes at the end of the engine intake, and the angle between the inlet and exhaust valves also expands to 41°. The stroke bore ratio has also changed to nearly 1.2, plus the shape of the top surface of the piston, resulting in a stronger vortex in the intake. Improve combustion quality Irregularly distributed injector nozzles and improved dual injection control make the air-fuel mixture more uniform and burn more fully. Reduce losses Variable displacement oil pumps also reduce the loss of engine power to the oil pump. Moreover, Toyota also equips the engine with an electric motor to improve the endurance. In addition, the engine can be switched between the Atkinson cycle and the Otto cycle. The new gearbox reduces losses during transmission. The disadvantages of full combustion are that the working temperature in the cylinder will be high and the proportion of nitrogen oxides emitted will also increase. However, Toyota's EGR exhaust gas recycling technology can introduce appropriate exhaust gas to burn again, thereby reducing the formation of nitrogen oxides. This Toyota 2.5L engine called the Dynamic Force Engine is not capable of achieving a high thermal efficiency of 41% under all operating conditions. With a hybrid system, the maximum value can reach 41%. If it is just a gasoline engine, Then up to 40%. The compression ratio of the gasoline engine version has reached 13:1, and the mixed version has reached 14:1, which will be carried on the new Camry. After talking about Toyota, after a brief talk about the "exotic" Mazda car companies. When it comes to Mazda, sometimes you are happy to play straight, and sometimes let you admire the heart, from the "triangle rotor" to "Chuangchi blue sky", Mazda is always so maverick. On the eve of the start of the Frankfurt Motor Show, Mazda announced some technical details of the second-generation Chuangchi blue sky engine, saying that the fuel efficiency will be 30% higher than the previous generation, and the thermal efficiency will be raised to 50%. From the published technology, it seems that this is not a fantasy. The second-generation Chuangchi blue sky engine "SKYACTIV-X" will use homogeneous compression ignition technology (HCCI). It is said that the high pressure generated by the pressure like the diesel engine makes the air-fuel mixture spontaneous combustion, but such a state exists only in specific The engine speed range, the rest still rely on spark plug ignition. However, if you want compression ignition, you will need a high compression ratio, so Mazda will have to achieve 18:1...1.5L displacement of the "SKYACTIV-X" engine fuel consumption will reach 3.3L/100km. The disadvantages of the high compression ratio of the gasoline engine, such as the engine cylinder pressure is too high, the temperature is too high, engine vibration, oil requirements, fuel requirements, crankshaft, crankshaft connecting rod, camshaft strength requirements, cold start, engine life, etc. , Do not know how these problems Mazda will solve, whether it is the same as before using Miller cycle and Alto cycle two kinds of piston movement? How does Mazda solve the emission problem after full combustion? This may be the purpose of the "Fengma" cooperation. In order to increase the thermal efficiency of the engine, many companies have designed and even cooperated in research and development at all costs, which means that the internal combustion engine has not come to an end. As the hybrid technology becomes more and more mature, the advantages of new energy are no longer obvious, but the shortcomings are as usual. At the same time, the limits of traditional internal combustion engines seem to have not been explored and defined. In the short term, new energy will not completely replace the internal combustion engine, and the market will also appear to be in a state of “hundred flowersâ€. MANUFACTURING WORLD CLASS HEAVY DUTY ALTERNATORS AND: LOOKING FOR NEWS? SEE OUR LATEST INNOVATION AT. NEW PRODUCTS PRODUCT AND TECHNICAL INFO ON OE AND AFTERMARKET PRODUCTS Prestolite Alternator,Prestolite Alternator Parts,Prestolite Car Alternator,Auto Prestolite Alternator Ningbo zhongwang auto fittings co.,ltd , https://www.zowoparts.com
Not long ago, Toyota and Mazda signed a cooperation agreement, and the two sides will jointly develop the next generation of safety systems and power systems. Maybe Mazda also knows clearly that mixing is the direction of future development. Toyota also wants to rely on Mazda to achieve the ultimate in internal combustion engines and make future products more competitive. 
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