Siheyuan starts from a good life

The north wind was blowing, and Jiang Yan, who had just walked out of the downstairs from the cold, was shivering.

When Jiang Yan arrived at the experimental workshop, Deputy Director Yang, several workshop directors, and technical experts were already waiting there.

"I only drew part of this drawing, which contains drawings of the diesel engine. These are exploded drawings of the equipment."

"Okay, okay, thank you for your hard work, Mr. Jiang,"

Deputy Director Yang took the drawing from Jiang Yan's hand and looked at it with excitement on his face.

"Are you going to work the night shift tonight?" Jiang Yan asked.

"I have already said hello to the workers during the night shift. I will make them overnight tonight, otherwise I will feel uneasy."

"The logistics have also arranged the midnight snack, and Comrade He Yuzhu will make it himself."

Director Li, who was next to Deputy Director Yang, also chimed in.

Jiang Yan nodded when he heard this. When he came, he had guessed that if nothing unexpected happened, he would have to fuck her all night tonight.

"The materials for the engine are all ready!"

Jiang Yan asked Deputy Factory Director Yang.

"We're ready. Secretary Wang and Director Zhang used their own methods to get more than a dozen copies."

"That's ok. Later you will distribute the drawings according to the type of work. I will take the workers to work on the cylinders of the diesel engine myself."

"By the way, I have already written down the materials and requirements on the drawings. There are many gear parts, and our machine can only do rough machining. I guess the fitter will have to work hard."

"It doesn't matter. All the fitters above Level 4 in our factory are on standby in the workshop next door. Director Li will go over and keep an eye on us when the time comes."

Jiang Yan finally felt relieved when he heard that Deputy Director Yang had made arrangements.

Then Deputy Factory Director Yang called some workers over and started distributing drawings.

"Deputy Factory Director Yang divided the workers into groups according to different types of work and temporarily appointed some people as group leaders."

Director Li next to him quietly explained to Jiang Yan.

Each temporary team leader got his own drawings and began to organize workers to produce. The machine tools roared in the experimental workshop after a day of silence.

Jiang Yan took the cylinder drawings and organized workers to start production.

Due to his previous experience in producing automobile engines, he directed the workers in an orderly manner this time. In order to keep up with the schedule, Jiang Yan's mold makers were basically sixth-level workers. When forging the burrs, Liu Haizhong even went into battle himself.

The mold manufacturing went quite smoothly. After the sand mold was completed, watering began again. After everything was completed, Jiang Yan came to the side of Deputy Director Yang.

"The cylinder has been poured. The next step is to wait for cooling and then processing. I have already arranged the rest."

After hearing Jiang Yan's report, Deputy Director Yang nodded and said "hard work" without saying a word.

Jiang Yan had not waited for two minutes before parts began to be delivered to Jiang Yan one after another.

Jiang Yan took a look at the parts that were delivered. These parts were basically parts from machinery such as corn threshers and manual planters. These parts were not difficult to process and were naturally quick to process.

Seeing these parts, Jiang Yan directed the technicians in the technical department to start assembling the tested parts.

"Okay," Jiang Yan and Deputy Director Yang turned their heads at the same time when they heard the technician's voice. A corn threshing machine appeared in front of them.

"Put it aside for now!" Jiang Yan lost interest in this thing after just one glance, but he still ordered the technician.

The technician took the assembled corn thresher to the right wall of the workshop.

During this period, corn threshers and manual planters were assembled and placed in a row.

Seeing these human-powered machines, all the leaders just went up to take a look and felt they were okay. Arrange workers to put these things into the warehouse and wait for testing tomorrow.

And all the leaders' minds are once again focused on the diesel engine, which is the top priority.

"Mr. Jiang, the parts for the diesel engine are out." Xiao Zhang, the technician who accepted it, came to Jiang Yan with the parts and handed them to Jiang Yan like a normal treasure.

"Quickly measure it." Deputy Factory Director Yang told the technician with excitement on his face.

After hearing the instructions from Deputy Factory Director Yang, Xiao Zhang took out the power test and started testing the newly completed parts.

"The dimensions and design are consistent, and the product is qualified."

After the test, Xiao Zhang reported loudly to Jiang Yan and Deputy Director Yang.

"Okay, okay, a good start, really a good start."

Starting from this part, parts for making diesel engines were sent over one after another, and Jiang Yan directed the technicians to start testing these parts.

"This crankshaft is good, almost perfect. Even with a machine, it would be difficult to produce such a quality." Jiang Yan admired while holding a crankshaft that had just been inspected.

The surface of this crankshaft is very smooth, and there is not a single burr on it. It is no exaggeration to say that it is a work of art.

Hearing Jiang Yan's praise, Wu Feike, the director of the third workshop who was helping with the inventory and classification next to Jiang Yan, was overjoyed. The crankshaft and other parts were all completed by his team.

"Xiao Jiang, is the crankshaft of our diesel engine a bit long? I have seen the crankshaft of a car engine, and it is very short!"

Well, when Jiang Yan heard Deputy Factory Director Yang's question, he knew that he was half a layman, and he was most afraid of leaders who seemed to understand but didn't understand.

However, Jiang Yan still patiently explained: "Generally speaking, the crankshaft size of a diesel engine is larger than that of a gasoline engine with the same displacement. This is because the compression ratio of a diesel engine is higher and a larger crankshaft is needed to withstand greater pressure and torque. , in layman’s terms, the greater the torque, the greater the strength. If you put it on a vehicle, the more things it can pull.”

After Jiang Yan said this, he stopped and glanced at the thoughtful Deputy Director Yang and then spoke.

"The working cycle of a gasoline engine is the ignition cycle, and the size of the crankshaft is relatively small. In addition, the size of the crankshaft is also affected by the engine's speed and power. High-power and high-speed engines require larger crankshafts to bear greater loads and vibration."

"That is to say, the speed of the gasoline engine affects the speed. In layman's terms, it is not very powerful but it can run very fast."

In his previous life, Jiang Yan knew that the fastest F1 car in the world could reach over 20000 rpm, but the most powerful diesel engine in the world could not reach 120 rpm.

Don’t underestimate the slow-speed diesel engine, and don’t think it’s vulgar. In fact, more than 90% of the world’s tanks, submarines and large surface warships use diesel engines.

The one designed by Jiang Yan can barely be considered a micro engine. The power is far inferior to the tractors produced later, but it is quite sufficient for China in this era.

"Xiao Jiang, you mean they can't run fast, but they can haul more goods, right?"

"Director Yang" It's okay for you to understand this way. Our walking tractor is rated at one ton, but if you pull it twice as much, you can probably run it, but the speed will be a little slower. "

"By the way, we originally invented machines for plowing. Why do you let them run so fast for plowing?"

"Yes, yes, Xiao Jiang, you are right. The main responsibility of a walking tractor is to cultivate the land, and transportation is incidental, but it does not need to be so fast. It is not necessary."

Don't look at Deputy Factory Director Yang's sudden realization. Jiang Yan estimates that he only has a partial understanding after listening to his explanation. He may have remembered the relationship between the speed of rotation and the amount of strength.