Xiao Weiguo continued: "In addition to breaking through the conventions in the shape design of this car, the biggest selling point is its engine! We want to develop a powerful and fuel-efficient gasoline engine! It will use a variety of aeronautical technologies, which will improve the performance of the engine. For example, turbocharging technology, gasoline injection technology, aluminum alloy parts technology, and so on! ”

Singh said excitedly: "Turbocharging technology, I can understand this, after all, the Dragon Soul Ordnance Consortium has a unique advantage in aviation turbocharging technology, and it shouldn't be much of a problem to apply it to automobile engines." However, gasoline injection technology, which we have also begun to study in the design and development of aviation piston engines, has been unable to solve the technical problems although we have tried a variety of methods. I wonder if Mr. Philip has any good ideas? ”

Xiao Weiguo said with a smile: "The carburetor widely used in automobile engines now has phenomena such as easy air resistance, icing, and insensitive throttle response, and uneven oil supply in multi-cylinder engines, which causes unstable work and is not conducive to high-power design. Of course, there are many aero engine companies that are studying gasoline injection system technology, but this technology is indeed limited by the production process and technology, not only is it very difficult to design and manufacture, but even the cost of manufacturing will be ridiculously high, so we want to solve these problems, so that this technology can be widely used in automobile engines. Due to the direct injection of fuel in the cylinder, it does not occupy the volume of the intake air, so the air intake volume is increased, the power is increased, and the fuel is directly injected into the cylinder to reduce the temperature in the cylinder, reduce the detonation tendency, and can appropriately increase the compression ratio and increase the thermal efficiency. The first thing we need to solve is the problem of gasoline injection in the cylinder at the same time, and it can further be designed for multiple groups of injection and sequential injection. ”

Historically, it took more than ten years for the gasoline injection system to be developed, in 1945, when World War II was coming to an end. Jet systems began to be used on military fighters. It fully eliminates the defects that the float carburetor cannot be fully applied to the combat conditions of military fighters, such as easy freezing point, air resistance, due to physical effects such as inertia and gravity, fuel overflow in combat rotation and rolling, and the separation of fuel and measuring holes, and other shortcomings, and gasoline injection technology came into being.

Although gasoline injection technology has many advantages, its manufacturing cost is very high because its production is restricted by the social productivity, production process and technology at that time. As a result, gasoline injection for automobiles was initially only available in a small number of racing cars, and it was able to meet the high engine output and sensitive throttle response required by racing cars. By the late '50s, most race cars had adopted gasoline injection as a fuel delivery system. Gasoline injection was applied to the car engine of civilian mass production, and it was from 1950 to 1953 that the two companies of Goliat and Gothbrot first installed a gasoline injection device on the two-cylinder 2-stroke engine. In 1957, Mercedes-Benz adopted it again in 4-stroke engines. But now, Xiao Weiguo wants it to appear on the car engine more than ten years in advance.

Xiao Weiguo continued: "In addition, we need to explore double overhead camshafts and multi-valve technology. The use of double overhead camshafts can reduce the motion friction of engine components, which can not only accurately control the work of engine valves, so that the power loss is greatly reduced, but also better support the high-speed movement of 4 valves per cylinder. Reduced fuel consumption losses. The multi-valve technology adopts 2 intake valves and 2 exhaust valves per cylinder, so that the intake and exhaust volume is increased, and the fuel combustion in each cylinder is more sufficient, which can not only get greater power, but also reduce gasoline consumption. ”

Dr. Singh and Dr. Herman were so excited that they took out pen and paper to record what Xiao Weiguo said, and they knew that these were new technologies that could change the landscape of future automobile engines, and they definitely deserved serious study.

Xiao Weiguo continued: "In addition, the high-torque cylinder block design also has a huge effect on the engine performance, and we can design a rectangular cylinder block with a stroke larger than the cylinder bore. This gives the vehicle a high torque output and allows the vehicle to gain a lot of power at low speeds. Dramatically reduce acceleration time. The lubrication system does not seem to be directly related to the power output, but only the parts with clean surfaces can better ensure the excellent work of the engine and the higher power output. For example, our engine lubrication system can take the middle of the main oil channel and distribute it to both ends to ensure the oil supply and oil pressure route of each part, so as to make the operation more reliable. ”

Lucas said excitedly: "Then our high-temperature resistant aluminum alloy." Is it possible to apply it to this engine in large quantities? ”

Xiao Weiguo nodded and said: "Yes, not only can the engine piston be made of advanced high-temperature resistant aluminum alloy materials, and the lightweight design is carried out, so as to make the piston movement lighter and reduce power loss." Fuel consumption can also be reduced! In addition, high-performance aluminum alloys can be used for engine cylinder heads, cylinder blocks, and engine housings! Even in some car body parts, such as the door, you can use high-performance aluminum alloy, so that the quality of the whole vehicle will be controlled, a number of technologies combined, the fuel consumption of this BMW mini car can be significantly reduced, my expectation is to reduce the fuel consumption of more than 30% compared with ordinary cars, so that the BMW mini car will become a popular car that ordinary people can afford to buy and use! ”

Xiao Weiguo knows that in addition to Porsche's preparation for the development of the Beetle Volkswagen, Daimler Mercedes-Benz also has an economic sedan C170, which forms a competitive relationship with the BMW mini car, and now the car is about to be put on the market, so the BMW mini car must be completed as quickly as possible to complete the process from research and development to production. The C170 was the main economy model of Gallam Benz in the 30s, with a displacement of 1.7 liters, a 6-cylinder overhead camshaft engine and independent suspension of the front wheels. However, when the BMW mini car is successfully developed and put on the market, the C170 will face a crisis, because the space and performance of the BMW mini car are better than the C170, and the BMW mini car uses a 0.8-liter high-performance engine, compared with the 1.7-liter displacement of the C170 car, the fuel consumption is at least half lower, and the power of the two will not be much different.

Delot's eyes lit up, he was looking forward to the bright future of BMW described by Xiao Weiguo, he wanted to be under the banner of the Dragon Soul Ordnance Complex, maybe BMW would reach a height that had never been seen before, but not necessarily! (To be continued.) )