Chapter 195 Running
"Why?" Chen Mu couldn't understand for a while.
"For many things, just having a principle is not enough. The Stirling engine was invented before the internal combustion engine, but it was really developed much later. One of the reasons is here. "Due to the particularity of the structure, the
use The vaporization phenomenon caused by liquid lubricating oil will condense on the regenerator and cause blockage. This problem has troubled manufacturers for countless years. It was not solved until the advancement of materials science.
"Nowadays, we mainly use high molecular polymers such as polytetrafluoroethylene and graphite and other fillers to make pistons, which can form self-lubrication at a high temperature of 250 degrees and perfectly solve this problem." At this point, even if Dong Junwei and others
actually I can’t quite understand it either.
Chen Mu asked: "You mean, this thing cannot use lubricant, and can only rely on the material itself to solve the friction problem?" "
That's what it means."
"No wonder you need Xiao An's help." Chen Mu nodded.
"Yes, as I said before, we have been able to make many mechanical equipment for a long time, but before some key technical problems were solved, the products were just a pile of scrap iron." Tang Jing said: "Lubrication and heat dissipation have always been the most important things
. It's a headache problem. Now with An Ruosu, we have actually solved many technical problems. In the future, the machines will only become more and more advanced." "
There is another problem." Chen Mu said: "Since it is an external combustion engine , then there must be an external heat source. Your plan is to use the squad leader's metal heating function?" "
Yes." "
But how to implement this specifically?"
"Wrap the heat chamber of the cylinder with metal, and then proceed Heating, the biggest problem now is the ability of the monitor.
"Although the temperature can last for 24 hours, it will slowly cool down over time, so the actual usable time is not long. "
When Tang Jing said this, she looked at Dong Junwei.
Dong Junwei was a little ashamed, struggled for a moment, and argued in a low voice: "It can be 26 hours now. "
"That's not enough, monitor! "
"You have to work hard!"
"Everyone else is making progress, why are you standing still? " "
..."
Dong Junwei has always been the only one to educate others. It was a rare opportunity to reprimand the chief decision-maker. Everyone was so excited. The room was filled with a
pleasant atmosphere.
An Ruosu and Yang Li watched Dong Junwei being talked about by everyone. His face turned red and he thought to himself, is this really the top person in charge of Qiming?
"In this case, when will the construction start? "
It's up to Tang Jing to solve the technical problems, and Chen Mu is ready to continue being a tool.
"Tomorrow. "
...
The engine is the heart of industrial civilization, and its importance is self-evident. The symbol of the first industrial revolution was that steam engines replaced manpower. Early the next morning,
Chen
Mugang and He Ying finished their sparring and were waiting nearby. Tang Jing hurriedly pulled him away.
Wei Dalei had already prepared the necessary materials. Tang Jing took out a few drawings with detailed dimensions and handed them to Chen Mu.
This is basically the cooperation between the two. Model.
First, Tang Jing either draws a picture or dictates, and makes all the required large and small parts. Then the two of them assemble it together. During this process, they make constant adjustments until a piece of equipment or a machine is produced.
The loom that was just completed a few days ago is the pinnacle product of the two people's cooperation.
But after having An Ruosu, Tang Jing felt that the original loom was not satisfied enough, and planned to build a new one later. The
previous one One is a relatively primitive manual shuttle loom. It is very large and difficult to operate. The initial operation experiment was completed by Wei Dalei. However, as a big man like Wei Dalei, it is really not suitable for such a thing.
And Now that the engine plan has begun to be implemented, if it goes well, weaving can also be changed from manual to motorized. Of course, the entire loom will basically need to be remade. In terms of structure, the complexity of the loom is higher
. It's just that the accuracy is not as strict as the engine.
On the morning of the first day, Chen Muguang made the cylinder more than a dozen times, but Tang Jing rejected each time. Either the flatness was not enough, or the size was wrong. In fact, there is nothing good in this aspect
. The method is nothing more than trial and error. When manufacturing new products, this stage cannot be avoided. Once you succeed once, the follow-up will be much easier. In the next few days, Chen Mu worked hard to create the product designed by Tang Jing
. parts, and in Tang Jing's spare time, she would take An Ruosu to repair several previous elevators, specifically to reduce friction on the contact surfaces between some parts. The so-called reducing friction is just a general conceptual description
. In fact, when actually doing it, the situation is very complicated.
First of all, An Ruosu must directly touch the surface of the object with his hands before polishing, so many already built places need to be dismantled and rebuilt by Chen Mu. Secondly, the polished surface has a
glossy The strength and feel have been improved, but it is difficult to distinguish with the naked eye. Therefore, if An Ruosu is placed on the ground with a small friction, it is almost equivalent to a trap, and whoever walks out will be unlucky. Finally, reduce
friction Force does not mean that friction disappears. The degree of smoothness depends on the material of the object itself and the strength of An Ruosu's ability. Looking at it
now, her ability limit is okay, but her mental power is relatively poor, that is, sustainability And the work intensity was not enough.
On the third day,
Chen Mu finally built a cylinder that satisfied Tang Jing. Although it was only part of the hot cavity, with this good start, the follow-up would be much smoother. On the fifth day, the
cylinder was completed.
Chapter 1 In seven days, the piston was completed.
After these two parts were completed, they needed to be docked with Anruosu. The size and dimensions of the part between the piston and the cylinder must be exactly the same, which not only meets the sealing requirements, but also must achieve minimum friction. Of course, the
last This is no longer a problem.
On the tenth day, the prototype of a Stella engine was basically completed.
Everyone gathered around the machine, all showing incredible expressions.
Compared with the previous clockwork devices and lifts, this engine is obviously more refined and technological, with a silvery stainless steel shell, an almost perfect wheel, a thick and powerful linkage rod and piston... all of this seems to be... It heralds a bright and glorious future.
Next comes the trial run.
Tang Jing connected the metal block heated by Dong Junwei to the outside of the cylinder's hot chamber through the rotating shaft.
However, after waiting for a while, there was no movement from the machine.
"What's going on? Did something go wrong?"
"Don't worry, slow response is indeed a major shortcoming of this engine."
Sure enough, after waiting for more than ten or twenty seconds.
The piston in the cylinder finally started to move.
(End of chapter)