Chapter 1007: An Engine That Can Last for Decades

When the chief engineer of the 17th Ministry of Machine Building looked at the machine covered with red cloth in the middle of the conference room, his surprise reached its peak.

Did Comrade Gao Zhendong and his team really make a complete engine? Judging from the outline of the red cloth, it looks a bit like one, but in terms of size, it doesn't seem to be the same. This thing is a bit too small, at most a low-power engine, and it doesn't seem to be worth making such a big fuss about.

But if anything happens to Comrade Zhendong, it’s hard to say.

Never mind, our department is sure to make a profit anyway, so why worry about those things? The chief engineer sat down happily. Every time he came to the Third Rolling Mill and the Third Branch of the Third Rolling Mill for a meeting, he always felt so happy.

The deputy leader of the 11th Ministry of Machine Building saw him and turned to ask him, "What is this time? Why is your department trying to steal our work? Are you too rich in research funds to spend?"

He was more familiar with machinery and engines, and could almost tell from the outline that it was a complete engine, just a little small, so it probably wouldn't be very useful.

The chief engineer of the 17th Ministry of Machine Building said cheerfully: "I don't know about that. The comrades have the ability, and we can't dampen their enthusiasm. Maybe they can do better than you, don't you think? Hahaha." Gao Zhendong was able to make such a big scene, so this thing must not be simple.

"Just keep bragging. I want to see what you guys can come up with this time."

The director of the Science and Technology Department of the 13th Ministry of Machine Building thought that if this thing was really an engine and had decent power and torque, it would be quite useful. However, similar engines were not unavailable in China, so I wondered why they kept tinkering with this thing.

Seeing that everyone was present, Gao Zhendong called out to the chief engineer, "Shall we start here?"

After the other party agreed, Gao Zhendong stood up.

"Comrades, we have invited you all here today to jointly inspect our factory's new product - the 463 inline 4-cylinder 2.0-liter gasoline engine."

Everyone probably understands this name, 4-cylinder engine, 63.

This is what Gao Zhendong replaced. It was originally a 4G63 L4 engine from the Japanese. However, Gao Zhendong did not choose a very new model such as one with MIVEC, as that would be a bit too advanced for today. Instead, he chose an older model that can be matched with a carburetor. Although it is a bit older, it is simple.

Another advantage of 4G63 is that it has relatively large low-speed torque.

As soon as these words came out, the comrades outside were shocked. It’s true!

No wonder it is so small, 2.0 liters, which is similar to the 71-liter imitation Mercedes-Benz engine used in the first Dongfeng 1.9 sedan.

At Gao Zhendong's signal, a comrade unveiled the red cloth covering the 463 engine.

This is a sophisticated engine. Although there are some oil stains on it, it cannot conceal the metallic luster it emits.

When they saw the engine itself, the comrades' interest was immediately piqued. Regardless of the performance of this engine, in terms of appearance, it is better looking than the 1.9-liter engine and the 2.23-liter engine that is being imitated. At least it does not look so messy. It is quite complicated, but well organized.

After Gao Zhendong unveiled the event, he said nothing more and handed the stage over to the comrades from the Mechanical Section of the Technical Department.

Soon, the words of the head of the Mechanical Department let the comrades attending the meeting know why Gao Zhendong called them all over, that is, to invite them to come and accept the shock.

"…After preliminary testing, the engine's maximum net power is 120 horsepower…"

The director of the Science and Technology Department of the Thirteenth Ministry of Machinery immediately opened his eyes wide and interrupted him: "Comrade, wait! How much?"

These laymen are just kidding. The time for launching satellites has passed, but they are still launching them here. The Mercedes-Benz 1.9 engine of similar size only has 70 horsepower, and your 2.0 can reach 120?

The comrade from the Mechanical Department knew what the director was thinking, so he just calmly repeated it again: "Net power is more than 120 horsepower."

Although he was not familiar with engines, looking at the expressions of the comrades from the 13th Ministry of Machine Building, the chief engineer of the 17th Ministry of Machine Building made a rough guess that the number must be very large, so large that it was unbelievable.

“Is that a big number?” he asked.

The deputy leader of the 190th Ministry of Machine Building nodded and said, "Very big! This is true for us and for our northern comrades. The Benz 1.9 engine we copied has a 70-liter power of 2.4 horsepower, and the Volga sedan of our northern comrades has a 75-liter power of horsepower."

In this regard, the Russians are also weaklings.

The Mercedes-Benz engine we imitated is "a little bit" worse than the original. For example, the 680Q engine finally used in the "Songjiang" brand car was an imitation of the Mercedes-Benz 220S. The original power was 114 horsepower, but our imitation only had 90, and the torque was also reduced.

The engine developed by Comrade Gao Zhendong of the 220th Ministry of Machine Building actually has higher power than the original Mercedes-Benz 10S, and its displacement is even % lower!

This made the comrades of the 11th and 13th Ministries of Machine Building very nervous. It would have been fine if they just snatched the work, but they did it so well?

Twelve Ministry of Machine Building: Don’t mention this matter anymore.

But if they wanted to question it, they couldn't say it out loud. Why? Just because they couldn't do it, they thought others couldn't do it either? The chief engineer of the 17th Ministry of Machinery was so happy that he couldn't stop smiling. As expected, Comrade Gao Zhendong never did anything without preparation.

Seeing that the comrades from the other two ministries were still digesting the news, the chief engineer smiled and said, "Little comrade, keep talking, keep talking."

The chief engineer of the department is very friendly. It is not appropriate to call Comrade Zhendong "little comrade", but it is okay to call other little comrades.

"Good leader." The comrade from the Mechanical Department continued to introduce the performance of the 463 engine.

"Maximum output torque 170 Nm/2500 rpm..."

His words were interrupted again by the director of the Thirteenth Ministry of Machinery.

"The outbreak point is so early?"

The 220S's 2.23-liter engine has slightly more torque than this engine, after all, the displacement is also 10% larger, 176 Nm, but the burst point is at 3500 rpm. This 1-rpm difference brings about the question of whether the car is easy to drive in harsh terrain.

Moreover, only Hans' most advanced car can use this kind of engine. If it is replaced with an ordinary car, the data will be far from this.

Perhaps realizing that his repeated interruptions were somewhat impolite, the director shook his head and said, "It's okay, it's okay. Go on, go on."

It seems that this iron-making ministry has really produced a good engine.

I originally thought that this engine was tuned to favor power, exchanging torque for power, but I didn't expect that not only is the torque not low, but the burst is also very early, almost approaching the torque burst point of a diesel engine.

The reason why some high-power engines feel underpowered when driving is because the torque explosion point is too high, and the speed needs to be pulled to a very high level to have sufficient torque. In gasoline vehicles, this type of engine is called a "high-speed" engine.

This type of engine is good for highway driving, but it is not very practical given the current road conditions where the speed cannot be increased at all.

The comrade from the Mechanical Department smiled and nodded to him: "These data have all been tested many times by us. We are confident of their credibility."

Comrades like the chief engineer of the 17th Ministry of Machine Building and the 11th Ministry of Machine Building are more experienced in this. Since Comrade Gao Zhendong dares to bring it up, he must be able to guarantee it.

Gao Zhendong interjected at the right time: "The high power of this engine has a certain relationship with the compression ratio. The gasoline used by this engine has a relatively high octane number, which is its weakness."

The comrades from the Thirteenth Machine Department finally understood: "What is the compression ratio of this engine?"

"9.5." Gao Zhendong replied.

"9.5? That's not much higher. The compression ratio of the Mercedes-Benz 220S we copied is 8.7." When he said this, he became more and more excited. This meant that this engine was actually on the same level as the original 220-liter engine of the Mercedes-Benz 2.23S, and even slightly exceeded it in some places.

But that was a 6-cylinder engine, and this is a 4-cylinder engine, the weight and complexity of the engine are incomparable.

He suppressed his excitement and asked: "How is the durability and reliability of this engine?"

Trading life for performance is also a common approach.

A comrade from the Mechanical Department said, "It has only been a month since Chief Engineer Gao came up with the blueprint for this engine, so it has not been tested for that long. But one of the machines currently under test has been running continuously at rated power for more than 130 hours."

Chief Engineer Gao made the drawings? Sure enough, this was done by Gao Zhendong, and it sounded like he had completed the design alone. The chief engineer sighed in his heart, but for Gao Zhendong, this seemed quite normal.

This statement immediately made the director of the Science and Technology Department lose his temper. It was a big question whether the domestically imitated engine could run continuously for 130 hours at rated power and full power.

Although this was not difficult for a qualified engine decades later, after all, the reliability test standard for car engines at that time was 200 hours of continuous operation at rated power. But this was simply an impossible number for domestic engines in the 60s.

"In addition, our other engine responsible for the alternating load test has been working normally for nearly 100 hours..."

The comrades of the Thirteenth Ministry of Machine Building were completely furious. This engine was simply too exaggerated. They themselves had not considered the alternating load test so much, but others had done it in advance.

If true, this could be an engine that lasts for decades!

"Comrade, can I take a look at your running engines? Don't get me wrong, it's not that I don't trust you, I just really..." At this point, the Director of the Science and Technology Department was stuck.

The chief engineer of the 17th Ministry of Machine Building understood and empathized with his feelings. He had often experienced this feeling in the past two years. Indeed, for a rational technician, all this was a little difficult to express in words.

(End of this chapter)