The conflict with Harold is like a drama that has not yet reached its climax, and has completely ended. It is nice to be able to avoid being a prisoner at the age of ten, but it makes Dussander feel a little "hanging".

Not comfortable enough.

Fortunately, other things are going very well, and even some things are going too well. This made Dussander suddenly feel that life seemed to be starting to go smoothly again.

The improvement of the internal combustion engine entered the final stage, and the combination of Polina's hard work in the workshop and Dussand's knowledge of the cars of his previous life quickly showed results.

Polina's gas engine began to show its potential to surpass that of an external combustion engine. With the blessing of water cooling and heat dissipation, the improved gas engine can not only ignite smoothly, but also complete more than half a day of operation without external intervention.

The working parts of the steam engine were exposed, and a large number of steps required manual intervention – such as adding fuel, such as manually releasing the steam in the chamber to control pressure, such as filling the pistons, connecting rods and other moving parts with lubricating oil.

For a steam engine to run stably for a long time, it requires the continuous cooperation of at least one master technician, at least one technician and a stoker. The master technician is responsible for the overall control, the stoker controls the temperature and air pressure levels in the furnace, while the technician is responsible for lubricating the moving parts or working with the master technician to deal with the failure of individual valves and piping. In short, the steam engine has many great things, but "saving trouble" has never been its specialty.

The Empire's improved steam boilers were greatly improved in terms of the size and pressure resistance of the pressure vessels, and the steam carriage, the pinnacle of the steam engine, did not even require a stoker to be present at all times to operate, but it still required at least one technician to perform maintenance on the steam horses three times a day.

In addition to meeting the steam horse's activity and stretching requirements, the hollowing out of the steam horse's body also facilitates the technicians to repair the steam engine wrapped in the horse.

But the internal combustion engine is not the same – its basic principle inherently requires the machine to be maintenance-free for a period of time due to structural reasons.

No one can take an oil pot to lubricate moving parts while the combustion engine is running, and it is impossible to adjust the speed of the piston through the stoker. Therefore, it is necessary to do enough design at the beginning to make it possible to achieve the goal of "maintenance-free".

"Other problems are easy to solve, but heat dissipation is not easy to deal with now." Polina reported to Dusand in class about her current research progress, and began to hope that Dusand would come up with some new ideas from her head to help her solve the problem.

"How did you get the heat dissipated before?" Dusand didn't expect that Polina hadn't solved the problem of heat dissipation yet, "If there is no heat dissipation, won't this piston melt soon?" ”

"I designed the water circuit for the previous demo machine to dissipate heat with a continuous flow of water." Polina frowned and said, "But in the last experiment, the heat dissipation system couldn't hold down the temperature at all and melted down...... You can't just use it in a river or lake forever, right? ”

The steam engine does not need to dissipate heat, or it works by utilizing the process of "heating-cooling". This is not the case with internal combustion engines, where the heat generated by combustion is not dissipated as quickly as possible, and the piston will quickly become over-worn and malfunctioning due to thermal expansion.

Dussander rolled his eyes, "The situation last time can't be used as a reference, it was a combustion process with added oxygen content, and the combustion will be much more violent." Cooling system this ...... I don't think it even needs to be a sewer. ”

As a pharmacy student in his previous life, Dussander certainly couldn't have known much about internal combustion engines – which is why he decided to use half of his profits to stay with probably the only people in the world who knew about internal combustion engines.

But he still played with mobile phones and computers. And as a male college student who usually has a lot of spare time, Dusson also knows a lot about the heat dissipation of electronic devices.

Traditionally, there are three types of heat dissipation for electronic devices – passive heat dissipation, air cooling, and water cooling. Strictly speaking, passive heat dissipation is also a type of air cooling, but in order to distinguish the type of heat dissipation, it is temporarily divided into three categories - putting a radish on the CPU is also a kind of passive heat dissipation, of course, this has no reference significance.

Passive heat dissipation is suitable for devices with stable and minimal heat generation, and there is no reference for internal combustion engines. But air cooling and water cooling are actually very good solutions.

Air cooling itself is a major technical route for cooling the heat of old car engines. Wasn't the Porsche 911 an air-cooled engine back then?

"However, there are already waterways...... Then you just need to design a cooling system. Dussander thought for a moment and said, "The solution is ready-made, and it is not very complicated in itself, but the heat sink may need to be specially chosen...... I'll start by sketching out the plan. ”

Lorraine was struggling with unary equations, and Polina, who was waiting for the drawing, occasionally came to do some answering questions on her "homework". Dussand, on the other hand, began to draw a rough schematic diagram.

Dussand, who was thinking about what to use to represent the pump, suddenly felt a sense of comfort and relaxation.

This kind of life is very good - engage in inventions to make money, and then cultivate little Lori, and be a rich and powerful nobleman.

It's best not to go to a place like the heraldic management office yourself.

·

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"We'll have to go to the heraldic office again." In the afternoon's government class, Mr. Morris said to Dussander with a smile on his face, "In the next year, the two of us will often deal with the heraldic management office, and you must first familiarize yourself with the relevant procedures." ”

Dussand's mouth opened wide and he didn't say a word for a long time.

"I know what you're trying to ask." Mr. Morris laughed and said, "Why do we need to deal with such secret services? ”

Closing his long-open mouth, Dussander nodded vigorously.

"I am now Madame's Principal Private Secretary, and you are my student, Madame's only son, and the future Parliamentarian's Chief Private Secretary." Morris smiled a little helplessly at Dussand, "Since the day before yesterday, the Heraldic Management Office has issued a notice requiring the chief private secretary of every member of parliament who is preparing to run for election to go to the record. ”

Dussaint was stunned for a moment before he said, "But...... I was going to go to the industrial area today......"

"It won't be too long." Mr. Morris explained, "Ekkak doesn't have that many people to investigate and vet all of his personal secretaries. ”

Aika is a transliteration of the abbreviation of the heraldic management office, and it sounds a bit like the "Cheka" back then.

Dussaint frowned and struggled for a moment before reluctantly agreeing to the request.

When I come back, I must light a brazier again, and cross it back and forth three hundred and twenty-one times.

·

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The office building of the Newsal Heraldic Administration has never been so lively in 175 years.

The chief secretaries from all over Newsar flocked to the heraldic office as if they had fled, and with their mud-stained boots, they trampled the lavish office hall into farmland as if it had just been attacked by cattle. The chief secretaries, waving papers in their hands and shouting loudly in different accents, looked like they were arguing or preparing for a group fight.

Morris took Dusundre around the doorway, and then walked to the side door.

"It's up to you next." Morris knocked on the wooden door, then took a step back, "Remember, according to what I just taught you." ”

Dusson glanced at Morris in disbelief, and then saw the wooden door slam open, and an extremely tall "knight" wearing armor and carrying steam emitting from his back appeared in front of him.

It is said to be a "knight", but in fact it looks more like a monster. The monster was three meters tall and covered in armor made of rivets and metal plates. The huge helmet is directly attached to the shoulders and has no neck. And the helmet part looks like a giant crow.

The long, slightly curved beak extends downward, and the eyes are covered by hollowed-out honeycomb-shaped armor plates, behind which are hidden gears and screws - they move quickly a few times, make a "click" sound, and then switch the black lenses to transparent.

Behind the transparent lenses, a pair of brown eyes are revealed.

"Uh...... My name is Dussand. Dussander blinked, and after confirming that the brown glasses belonged to humans, he said tentatively, "I'm here for afternoon tea with Mr. Byrne." ”

"Wait a minute." A large cloud of steam came from behind the knight, and he turned behind him, leaving a "I'll check".

The tall figure was completely obscured by the steam, and Dussander took two steps back, avoiding the direct attack of the steam. Then he asked Morris, "That's ...... What's that? ”

"Oh yes, you haven't." Morris nodded, "That's the pride of the Royal Army, they call this the Steam Knight." ”

"Cool!" Dussand's interest immediately came. What man wouldn't have an interest in a giant humanoid machine? And it's really cool - a large black robot with a crow helmet covered in armor plates and rivets, and a lot of steam suddenly spews out from its back as it moves...... Each of these elements seems to be roaring "violent" and "handsome".

"You like this genre?" Morris's smile became even more mysterious, "Then don't tell the Colonel." The Navy and the Army have always looked down on each other, and if Mr. Colonel knows that you have become interested in Army toys, his only reaction may be to ask you to run a trail run with weights for a day. ”

Dussand, ignoring the fact that he might be ordered to run by his father, asked excitedly, "Mr. Morris, is there a way to buy this?" ”

"Want to play?" Morris smiled, "I'm sorry, my good lord. The army is just this treasure, and they look at it very closely. What's more, such a thing has no civilian value and significance at all, except for warfare. So I'm sorry, but if you want to sit in and play around, the only way is to join the army. ”