The new generation of engines is led by turbocharged + in-cylinder direct injection technology
In the 2009 Guangzhou Auto Show, many manufacturers have appeared in their latest models, China's first launch, Asian debut or even the world's first launch, in contrast to the downturn in the world's auto market, the cake in the Chinese market has clearly received more attention. As domestic consumers buy cars more rationally, they can now conquer consumers without slogans and concepts. In order to compete for this core market, more and more manufacturers will bring their most advanced models and the most advanced technology.
The engine has always been known as the "heart" and is the most important measure to determine whether a car is good or bad. In this auto show, Mercedes-Benz, BMW, Audi, General Motors and other manufacturers have launched their own housekeeping skills, the most striking of which is the ongoing direct injection and turbocharging technology. Among the new models participating in the Mercedes-Benz E-Class, BMW 760Li, BMW S6, Audi Q5, Cadillac SLS, Buick Encore, Regal 2.0T, Yinglang 1.6T and other high-profile models, or the use of direct injection in the cylinder, or Turbocharged, or both.
What is the charm of in-cylinder direct injection turbocharging technology, which is favored by many of the world's top luxury brands and mainstream brands, and regards it as a weapon to expand the territory?
In-cylinder direct injection technology (DirecTInjecTIon) is an engine technology that injects fuel directly into the combustion chamber of a cylinder, while previous gasoline engines injected fuel into the intake manifold. From carburetor to single-point electronic injection, multi-point electronic injection to multi-point sequential injection, the engine has evolved, and the direct injection technology in the cylinder is undoubtedly the latest achievement of human engine in the engine.
Since the fuel is accurately injected into the combustion chamber of the cylinder, the direct injection in the cylinder not only saves fuel, reduces exhaust emissions, but also improves the power performance. With the same displacement, the maximum power can be increased by 15%. At the same time, the engine is reduced and the engine is more durable.
At present, the models with in-cylinder direct injection technology are mainly luxury cars, Ferrari F430, BMW 760Li, Mercedes-Benz CGIV6, Cadillac CTS, Saiwei, etc. In this auto show, the new Regal 2.0T and Yinglang 1.6T are the first to adopt. The mid- to high-end model of the technology.
Turbo magical
Turbo Turbo, the Saab company from Sweden, applied the turbocharger to the car for the first time. This technology rewrote the traditional concept of “displacement size determines powerâ€, and its arrival also announced a new automotive industry. The birth of the era. Turbo is generally understood to be an air compressor that uses compressed air to increase the amount of intake air, thereby increasing the power and torque of the engine and making the car more powerful.
Improve the performance of the car and increase the horsepower of the car. However, the displacement and power of the car engine are directly proportional. To increase the output of the engine, the most direct way is to increase the displacement of the engine. However, while the displacement is increased, the precision, weight and energy consumption of the engine manufacturing are also increased indefinitely. The supercharging technology is to resolve this contradiction, making it possible for the car engine to obtain additional high-power power output.
In-cylinder direct injection + turbocharged prospect
It can be said that the turbocharged and in-cylinder direct injection technology is equivalent to injecting a cardiotonic agent into the heart of the car. The combination of the two represents the latest technology of the engine and becomes the most effective and direct high-efficiency power in the next decade while reducing the sewage solution. .
From the current combination of turbocharged and in-cylinder direct injection technology, it is clear that the maximum power of the engine has been improved. The maximum power peak of the Audi A42.0TTSI engine increased by 37.5% with turbocharged direct injection technology. The maximum peak of the Porsche 9113.6T turbocharged direct injection engine increased by 47.7%, and the new Regal 2.0T increased by 50%.
As the "heart" of the car, engine technology has always been the core of the most attention. Judging from the current models of various participating exhibitors, the development trend of automobile engines to high-efficiency power is the adoption of turbine and in-cylinder direct injection technology, which is now mature in technology. The new generation engine era has arrived.
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