Inventor of Diesel Engines

Diesel is expressed in English as Diesel, which is to commemorate the inventor of the diesel engine - Rudolf Diesel (Rudolf Diesel).

Diesel was born in 1858, German, graduated from the Technical University of Munich. In 1879, Diesel graduated as a refrigeration engineer. During his work, Diesel deeply felt that the efficiency of the steam engine at that time was extremely low, and the idea of ​​​​designing a new engine was sprouted. After saving some money, Diesel quit his job as a refrigeration engineer to open his own engine lab.

In response to the weakness of the steam engine's low efficiency, Diesel focused on the development of high-efficiency internal combustion engines. At the end of the 19th century, petroleum products were extremely rare in Europe, so Diesel decided to use vegetable oil to solve the problem of fueling the machine (he used peanut oil for his experiments). Because of the poor ignition performance of vegetable oil, the structure of the Otto internal combustion engine cannot be applied. Diesel decided to start anew, increase the compression ratio of the internal combustion engine, and use the high temperature and high pressure generated by compression to ignite the fuel. Later, this compression ignition engine cycle was called the Diesel cycle.

Like all great inventors, Diesel's road ahead was fraught with difficulties. Experiments have shown that vegetable oil is unstable in combustion and the cost is too high to undertake Diesel's "heavy task". Fortunately, petroleum products gradually became popular in Europe at that time, and Diesel chose diesel fuel, which was originally used for heating, as the fuel for the machine. The structural strength of compression ignition engines has always been a challenge. In one experiment, parts on the cylinder(pistion, cylinder liner, crankshaft...) were scattered like fragments of artillery shells, nearly causing casualties. The experiment did not go well, and Diesel's funds were gradually exhausted. He had to go back to the refrigerator factory to make a living. But Diesel did not succumb to difficulties. He continued to experiment in his spare time and perfected his machine step by step.

In 1892, Diesel finally developed a practical diesel-powered compression ignition engine. This engine has high torque, low fuel consumption, and can use inferior fuel, showing a brilliant development prospect. Diesel immediately plunged into the business venture of diesel engine production. Unfortunately, being a good engineer, Diesel lacked business acumen. He was struggling financially. Diesel was on the brink of bankruptcy in 1913. But the diesel engine invented by Diesel has been developed more and more widely in automobiles, ships and the whole industry.

In 1976, the German Volkswagen first used diesel engines on the Golf sedan;
In 1989, the German Volkswagen Golf Diesel was awarded the title of "Low Emission Vehicle". In the same year, Volkswagen obtained part of the technology from Fiat's R&D organization and produced the first 5-cylinder engine R5 TDI with supercharged(turbocharger) and direct injection technology. This engine was put on the Audi 100 model for trial.
In 1990, Volkswagen officially launched the supercharged, direct injection series diesel engine TDI. Since then, Volkswagen has been at the forefront of the world in the development and application of diesel power technology;
In 1993, a 4-cylinder turbocharged direct injection diesel engine (TDI) was developed;
In 1995, a naturally aspirated direct injection (SDI) diesel engine was developed;
In 1995, the variable-section turbocharger VGT was developed;
In 1998, the Pumpe Düse technology was developed;
In 1999, a diesel-powered Lubo sedan with a fuel consumption of 3 liters per 100 kilometers was developed. And the birth of an upgraded diesel-powered sedan has created a record of 0.99 liters of fuel consumption per 100 kilometers, becoming the most fuel-efficient sedan in the world. The engine adopts an aluminum naturally aspirated single-cylinder diesel engine, adopts advanced high-pressure direct injection technology for fuel system, and has a displacement of 0.3 liters;
In 2002, FAW-Volkswagen took the lead in launching the Jetta SDI sedan into the Chinese market;
In 2004, FAW-Volkswagen introduced TDI technology.

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