Returning wealthy individuals develop their hometowns and become rich in the 1980s

"Mr. Huang, higher horsepower means better fuel economy!"

Chen Dong's words left Huang Bin, a veteran worker, speechless for a moment. He kept circling the diesel generator, carefully examining it, his eyes filled with shock and fervor!

In the 1980s, when 200-300 horsepower was considered high horsepower, the 450-horsepower diesel engine of the Xiaochi heavy truck came out of nowhere, making other heavy trucks of the same era pale in comparison!

FAW's CA15 truck has a maximum power output of 115 horsepower, but it requires a fuel consumption of 26.5 liters per 100 kilometers. This is because FAW upgraded the CA10 truck. The previous generation CA10 truck easily exceeded 30 liters per 100 kilometers!

A fuel consumption of 26.5 liters per 100 kilometers would be considered reasonable and acceptable for a trailer truck with five or six hundred horsepower and heavy loads running on highways in later years. But this was 1982! A medium-sized truck with 115 horsepower and a full load of only five tons was a gas guzzler!

Huang Bin stared at it for a long time, captivated by the exquisite design of the diesel engine. Every design element exuded the beauty of industrial design. Huang Bin's hands, covered with age spots, caressed it with the tenderness of a lover, and he lingered there for a long time.

"Zai Dong, with such a high horsepower, why do you say that a high horsepower actually saves fuel?" Huang Bin finally asked the question that had been bothering him.

Chen Dong knew Huang Bin's doubts and confusion at this moment. He smiled and patiently explained to Huang Bin, "Mr. Huang, you have been in the industry all your life. I believe you also know that there is a fundamental difference between truck diesel engines and car gasoline engines."

"In trucks that often carry four or five tons, or even ten or twenty tons, diesel engines require low-speed, high-torque operation rather than high-speed operation. From a purely structural perspective, large-displacement, high-horsepower engines do indeed consume more fuel than small-displacement, low-horsepower engines!"

"However, it's an undeniable fact that small-displacement, low-horsepower engines cannot match the power reserves of large-displacement, high-horsepower engines, a point I believe you, Mr. Huang, would agree with!"

Huang Bin nodded in agreement, listening as Chen Dong continued, "Mr. Huang, high horsepower isn't just about 'more strength.' For the same load, higher horsepower means a lower engine load and lower RPM, resulting in better fuel economy. Plus, you don't need to shift gears as often when climbing hills, which extends the lifespan of the transmission!"

Huang Bin nodded. "Now that you mention it, I understand the reasoning. It's like carrying a load. A strong person can carry 100 pounds easily for a whole day, while a weak person has to rest after just a few steps."

"Mr. Huang, your analogy is very apt. Under the same fully loaded conditions and road conditions, a small-horsepower truck needs to maintain a high throttle speed at all times compared to a large-horsepower truck, which naturally increases the vehicle's fuel consumption," Chen Dong said eloquently. "That's why people say that imported cars are generally better than domestically produced cars."

"Small-horsepower engines experience significant wear and tear on their engines and transmissions from prolonged high-throttle, full-load operation. High-horsepower engines, on the other hand, operate at low speeds and low loads, maintaining optimal performance and naturally having a longer lifespan than domestically produced small-horsepower engines!"

Many people in later generations have boasted about how good the engines of Japanese cars were, such as being fuel-efficient, durable, and not easily broken. In fact, these were achieved by compressing the engine's power. In addition, Japanese cars were notorious for cost-cutting, and the overall weight of the car was reduced to the extreme.

Huang Bin nodded seriously, listening to Chen Dong's words. After Chen Dong finished speaking, he asked again, "Zai Dong, with such a high horsepower, what is the theoretical fuel consumption of this engine?"

"Theoretically, it's 30 liters per 100 kilometers when unloaded, and 45 to 50 liters per 100 kilometers when fully loaded. That's about 10% to 15% lower than the current mainstream 400-horsepower engines in Europe," Chen Dong confidently stated the data.

"Of course, these are all theoretical designs. The actual data will have to wait until after road tests, comparing data from multiple vehicles, and taking the median value for evaluation. But conservatively speaking, it will still be much better than the current CA15 in China!"

Huang Bin remained silent, head bowed, biting his cheek, and asked in a deep voice, "What's the model of this engine?"

"Bull-type A!"

"You also have type B?" Huang Bin looked at Chen Dong in surprise.

"Yes, Mr. Huang, our Xiaochi development strategy is to develop all three types of trucks: heavy, medium, and light. The current 'Manniu Type A' is a heavy-duty tractor-trailer, while the 'Manniu Type B' and 'Manniu Type C' will be the engines used in medium and light-duty trucks."

Huang Bin then asked eagerly, "Zai Dong, how much difference is there between your 'Raging Bull Type A' diesel engine and the mainstream heavy-duty truck engines in Europe?"

"As for the differences, besides being more fuel-efficient, in terms of horsepower, apart from Caterpillar's 3408 V8 engine, which has the same power as the 'Raging Bull A' but is more fuel-efficient, Scania's latest DS14 engine has a power output of 420 horsepower!"

Chen Dong pointed to the "Raging Bull Type A" engine and said, "The engines from the two companies I just mentioned are both V8 engines, while our Xiaochi Heavy Truck's 'Raging Bull Type A' is a V6 engine. As for why we can achieve 450 horsepower on a V6 platform that rivals a V8 engine, it's because Xiaochi Auto has mastered 'high-pressure common rail electronic fuel injection technology'!"

"High-pressure common rail electronic fuel injection technology?"

Huang Bin murmured repeatedly, his eyes filled with complex emotions, "Zai Dong, can you tell me what kind of technology this is?"

Chen Dong nodded and walked to the engine of the "Bull Model A". Pointing to the intricate pipes on the engine, he explained to Huang Bin, "Old Huang, traditional diesel engines rely on a mechanical fuel injection pump to pressurize the oil and inject it into the cylinder through the injector. When and how much is injected is mechanically controlled, so the precision is limited."

Huang Bin nodded, listening to Chen Dong's words. Chen Dong pointed to a device on top of the engine and said, "The high-pressure common rail technology first establishes an ultra-high pressure in this pipe, and then the electronic unit controls the fuel injectors to inject the precise amount of fuel at the precise moment."

"Higher injection pressure results in better atomization and more complete combustion, naturally leading to better fuel economy and more power!"

Huang Bin stared at Chen Dong for a long time, lost in thought. Compared to the surprise he felt when he saw the Leapmotor V8 engine, Huang Bin was now shocked after hearing Chen Dong talk about the "high-pressure common rail electronic fuel injection technology".

At that moment, Huang Bin thought of many engines that could utilize this technology: warships, tanks, engineering machinery. Basically, as long as it was a diesel engine, Chen Dong's technology could be applied to it!