African Nationhood

Chapter 306 Diesel engine prototype successful
  In late September, news came from Rudolf Diesel that his diesel engine prototype was successful.

Shi Jintang came to the Anhai Town Arsenal to witness Rudolf Diesel's moment of success.

After entering the arsenal, Shi Jintang was shocked by the big thing that was 3 meters tall and weighed 4.5 tons.

Rudolf Diesel was extremely happy today. He smiled and introduced to Shi Jintang and others: "This prototype machine can burn kerosene, peanut oil and the diesel you mentioned."

"What's the thermal efficiency?"

Rudolf Diesel was well prepared for Boss Shi's question, "25.6%, this prototype machine perfectly realizes the 'Carnot cycle', it is a perfect machine!"

Seeing Rudolf Diesel being so confident, Shi Jintang sighed, "In my opinion, this machine still has room for improvement. The most basic one is that your prototype cannot be as compact as a gasoline engine. , you still have a long way to go.

This prototype is just an example and does not illustrate the problem. The real test begins when it is actually mass-produced.

You have also stayed at the Benz Research Institute, and you should be aware of the number of problems encountered by the internal combustion engines there after they were produced. "

What Shi Jintang said were all the actual things that happened to Rudolf Diesel in the original time and space. He was not pouring cold water on the inventor.

Because of his carelessness, the diesel engine he invented encountered a cold reception in the market due to quality problems, but instead accelerated the development of gasoline engines.

Then, in order to raise money, he continued to improve diesel engines and imitated others by playing stocks.

Eventually he became deeply in debt and committed suicide in 1913.

……

"Oh, boss, I know. I'm mentally prepared. Didn't the prototype succeed today? Let's talk about the rest later."

Shi Jintang nodded, "Well, keep talking."

Rudolf Diesel nodded, and the smile on his face disappeared, "The inner cylinder diameter of this prototype is 250mm, the stroke length is 400mm, the peak torque is 812N·m/154 rpm, and the maximum power is 17.8PS/154 rpm. .

In addition, the efficiency ratio of this engine is twice that of a steam engine. This is a huge improvement for current steam engines! "

Rudolf Diesel's words aroused some interest in Shi Jintang.

"Well, this machine can completely serve as a power source for ships. Since it is more powerful than a steam engine, how about we first make a few ships that use your engine as a power source?"

In the original time and space, Rudolf Diesel got into trouble. He saw the rapid development of gasoline internal combustion engines in the world and the great development of automobiles.

He benchmarked his new engine against gasoline internal combustion engines, hoping to be recognized by automobile manufacturers.

However, he has been unable to solve the technical problems in the miniaturization manufacturing of diesel engines and has been unable to market them.

One year after his death, the French took the lead in thinking of using diesel engines on ships, and the Russians quickly followed suit.

Diesel engines soon replaced steam engines and became the preferred power source for large machinery.

The Germans unlocked the artifact "U2 submarine" in the application scenario of diesel engines.

During World War I, all German "U2 submarines" were powered by diesel engines.

……

Rudolf Diesel suddenly became enlightened when he heard Boss Shi say this.

Yes, I never thought that diesel engines could be used as power sources for heavy machinery such as ships and trains. Boss Shi is worthy of being a big boss and thinks about things thoroughly. People have to admire him.

“What a great idea!
  Boss, I think it is the best choice to use it on ships. With the excellent efficiency ratio of my prototype machine, it will only occupy a smaller area than a steam engine.

Moreover, using liquid fuel does not require extra manpower to load coal into the boiler. "

Shi Jintang smiled and nodded, "At present, this prototype machine can be used for large ships and locomotives. This type of machinery does not pay attention to the space occupied by the engine. It can indeed save a lot of manpower.

By the way, what problems will arise after your prototype is miniaturized? ” ˆ ˆ Rudolf Diesel sighed: “If a diesel engine wants to serve as a power source for micro vehicles, it must solve the problems of direct injection of diesel nozzles and supercharging.

After downsizing, the engine does not have enough pressure to compress and ignite the diesel fuel injected into the piston. "

After listening to Rudolf Diesel's narration, Shi Jintang recalled that in the original time and space, 11 years after Rudolf Diesel committed suicide, the German MAN company produced the first truck using a diesel engine.

They successfully solved the bottleneck of diesel direct injection technology and realized Rudolf Diesel's long-cherished wish to use diesel engines as mini-vehicle and truck engines.

……

"ignition!"

Following Rudolf Diesel's order, several men in his research team worked together to shake the wheel, driving the prototype to sit up and reciprocate. As people exerted force, the work done became faster and faster.

Soon, the behemoth in front of me started to vibrate, and then its thick exhaust pipe kept spewing black smoke, and a harsh noise followed.

Seeing this huge machine running rumblingly, spewing black smoke and making loud noises, Shi Jintang couldn't help but complain: "Silly, big, black and thick."

However, Rudolf Diesel didn't think so. This machine in his eyes was his achievement and would definitely be widely circulated.

What he didn't know was that Boss Shi not only helped him build this machine in advance, but also provided him with sufficient scientific research funds and a stable life, otherwise he would have had many hardships to go through.

……

The diesel engine prototype was successful, and then Rudolf Diesel was sent to Nanhua No. 1 Shipyard and mixed with the engineers of the shipyard.

They began experiments and demonstrations day and night on how to make the diesel engine more suitable for the ship's power system and how to better utilize the convenience of the diesel engine.

There are also issues with fuel tanks and fuel pipelines, which require them to go through trial and error after demonstration and discussion.

The whole experimental process was very challenging, and Rudolf Diesel finally realized the unpredictability of the hardships and difficulties that new things would encounter in practical applications.

He entered Nanhua Shipyard in late September, and it was not until early November that his research team completed the design of the new diesel power unit.

As for problems during the actual installation process, they are even more unpredictable.

But Rudolf Diesel's mentality became more peaceful, and he became more pragmatic and down-to-earth.

……

Shi Jintang was very happy to see the changes in Rudolf Diesel. At the same time, he looked at the Electric Power College report sent by the education department with a headache.

When the internal affairs meeting of this college was held at the beginning of the year, Cai Shaoji had already discussed it with Boss Shi.

The education department's budget was also approved, but the construction period of the Electric Power College was too long and it took so long to be completed.

Shi Jintang couldn't help complaining that Cai Jinzhang's efficiency was a bit too low.

After complaining, he remembered that he had deducted their cement and building materials quota for the sudden construction of hydropower stations.

In the end, the fault lies with low productivity levels under corporate governance.

By the way, it’s time to go see Tesla. I wonder if he has completed the research and development of radios. It’s also time to go see Hertz.

He has been recuperating recently, so it was time for him to come out and take a breath of fresh air in Bulawayo City.

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  (End of this chapter)