Keith confidently said, "What don't you understand?" As he spoke, Keith walked over to the diesel engine, pointed to a large jar next to him, and said, "This is the gasoline in here." ”

Case pointed to the pipe connecting the tank and the diesel engine and said: "This is the oil pipe, the gasoline flows into the carburetor of the gasoline engine through the oil pipe, and the function of the carburetor is to break up the gasoline into tiny particles, which will be mixed with the air being sucked in in the cylinder, which is the suction stroke in the four strokes, and then the piston will compress the mixture, that is, the compression stroke." ”

"After the air and gasoline are compressed to a certain extent, there will be an ignition device for ignition, at this time the gasoline will expand and burn, and the high-temperature and high-pressure gas generated by the combustion will push the piston to do work, that is, the power stroke, and then the exhaust gas will be discharged, that is, the exhaust stroke, which is the process of the gasoline engine working."

After hearing this, Lin Yuan applauded lightly and said with a smile: "Wonderful! Very exciting! ”

Knoll said angrily, "Don't think we'll let you go if you say a nice word. ”

Lin Yuan ignored the angry Noor, but called a mechanic on the side and ordered, "You go and bring some of the oil we use." ”

The mechanic nodded and came back soon, holding a cup in his hand, and then put the cup on the ground, Lin Yuan pointed to the diesel fuel inside and asked Keith: "The gasoline you are talking about, is this the kind of thing?" ”

Keith poked his head out to take a look, and saw that the oil looked very dark, and there was no such brightness as gasoline, and said, "Strange, is this the oil you use?" It is impossible to use such oil in a gasoline engine. ”

Lin Yuan pointed to these oils and said: "These oils are inferior oils left after oil distillation, in your country, these oils are only used to produce chemical products, but when it comes to me, they are the most precious fuels." ”

In the diesel engine used in the ship, in order to reduce the operating cost, the diesel engine will be designed with inferior oil, the price of these oils is very low, but the use of this oil combustion chamber and oil supply system must be specially designed, that is what these Germans can understand, Lin Yuan took out a match from his pocket, lit it with a "bang", and then made a gesture to throw the burning match into the oil.

Keith was frightened by Lin Yuan's movements, and said, "What are you going to do?" It's going to explode, we're all going to die. ”

But Keith didn't have time to stop it, the burning match had already fallen into the oil, only to hear a "bang", the match emitted a puff of white smoke, and then extinguished, Lin Yuan smiled: "This time you can be sure that we are not using gasoline, right?" ”

Keith nodded, and Lin Yuan said again: "In order to convince you, I will have the lid of the cylinder unassembled, so that you can take a good look at our principle." ”

Lin Yuan waved his hand, a mechanic stepped forward, the general gasoline engine or diesel engine is multiple cylinders share a cylinder head, and each cylinder of this type of diesel engine has a cylinder head, the mechanic stepped forward, unscrewed the connecting threads on the cylinder head, and then removed the cylinder head.

Keith immediately stepped forward, and Lin Yuan said to him: "Like you said, gasoline must be ignited before it can burn after entering the cylinder, you see, can you find something that ignites?" ”

In gasoline engines, the ignition tool is called a spark plug, and Case has seen many spark plugs, and he is confident that he can pick out the spark plug among many parts, but when he sees the internal components of the cylinder, he is surprised to find that he can't find the spark plug at all, and not only that, but he has never seen the internal components of the cylinder.

Keith was a little panicked, and he couldn't help but think: "Could it be that the Chinese have really developed an internal combustion engine that can be used without spark plugs?" ”

Just when cold sweat oozed from Keith's forehead, Lin Yuan smiled on the side: "Is it a little unexpected, I can tell you that the principle of our engine is completely different from your gasoline engine!" ”

Knoll didn't know much about techniques, he looked at Keith, and Keith said, "They really don't use our techniques, and they may also use more advanced techniques, I don't understand them at all." ”

Lin Yuan asked with a smile: "Do you want to listen to the principle of our engine?" ”

Keith didn't wait for Knoll to speak, and then said anxiously, "Of course, tell me what the principle is." ”

Lin Yuan squatted down, picked up the cup of oil from the ground, and said: "The key is in this cup of oil, this oil has a wonderful property, when the pressure is very high, it does not need to ignite, it can burn by itself, so we use a compression-ignition engine." ”

When Keith heard this, he couldn't help but say, "Did you work with Diesel?" ”

Diesel is the father of the diesel engine, the principle of compression ignition of the diesel engine is the first to put forward, the diesel engine does not need an ignition system, compared with the gasoline engine has great advantages, so that in the modern internal combustion engine application, in addition to small cars are still using gasoline engines, other fields, such as military vehicles, construction machinery are dominated by diesel engines.

Diesel proposed the principle of diesel engine in 1892, and the actual diesel engine was not built until 1898, Lin Yuan of course heard of Diesel's name, but he did not admit it, but smiled: "Who is Diesel ? Does he also know compression-ignition diesel engines? If he can understand this kind of thing, others will definitely understand it. ”

Keith stopped talking, because they were convinced of this matter, and Knoll said helplessly: "Let's go, we lost this matter!" ”

Knoll walked out of the door with Keith and the reporters, Lin Yuan was just about to say a few cool words in the back, and be angry with these arrogant Germans, at this moment, Shen Wanqing's news suddenly came from the communicator: Come back quickly, we are in big trouble.

Lin Yuan didn't dare to slack off when he saw the news, hurriedly got out of the boat, returned to his residence, thought that Shen Wanqing was already in the house, pushed open the door and went in, but he didn't see his figure, Lin Yuan was wondering, he saw Shen Wanqing walking in from outside with a pile of documents, his forehead was full of sweat.

Lin Yuan let her into the house, then poured her a glass of water, and said, "What's wrong with you?" I was so tired that I felt like I had run a five-kilometer run. ”

Shen Wanqing raised her head and drank the glass of water, and without even wiping the water at the corner of her mouth, she handed a stack of documents in her hand to Lin Yuan, and said: "I went to Fengtian specially and brought all these things, you guessed well, the British aluminum factory has indeed signed a lot of orders, and these orders are still to be delivered in a few months, I took a brief look and found that the amount of aluminum needed is very large, and we are afraid that it will be difficult for us to complete." ”

Lin Yuan took those orders and looked at them page by page, only to find that this batch of aluminum involved nearly ten companies, including the German Mercedes-Benz company, because the density of aluminum alloy is small, so it is relatively light under the same volume, and it is a very popular material in the automotive industry.

Another is Edison Power Company, because the mechanical properties of aluminum alloy are better than copper alloy, so aluminum alloy is usually used in long-distance power transmission, Lin Yuan looked at the amount of orders below, and thought: "Fortunately, it's not too big, and the total is less than forty tons." Lin Yuan thought about this as he turned to the last page, and the content on it couldn't help but surprise him.