Thousands of sparks

Chapter 7 Improvement Program
Dusand reached an agreement with Lorraine on investment matters.This excited Polina, who was curled up on the sofa.

Obtaining the support of the nobles was originally one of the important purposes of her coming to Newsail.

Although she didn't get funding from other great nobles, but... the funding proposed by Du Sande really moved her very much.

Five hundred gold pounds!This is enough for her to manufacture at least 20 gas machines by herself-this is the cost of using a whole piece of high-quality metal for all parts, and then using lathes, milling machines, and quenching furnaces to make them purely by hand.

If you can get this investment, and find a qualified local foundry to open molds and pre-cast the parts... Maybe the cost of the gas machine can be reduced to less than 10 gold pounds.

Compared with a steam horse that required at least 25 gold pounds, the gas engine's competitive advantage was huge.

But...it's not that simple.

Polina interrupted the somewhat excited discussion between Dusand and Lorraine, and interjected, "Lord Dusand, there are some things I must tell you in advance."

She took a deep breath, and honestly revealed the biggest problem with the internal combustion engine, "If it was in Olin, you were absolutely right to invest in my invention. But here is New Sail, and the equivalent altitude is [-] The plateau planet of Baiyol. If the gas machine is to be promoted, it is impossible to hang a kettle filled with bleach in front of the air inlet of each gas machine, and put a few pieces of burning coal under it?"

"Even if I can use this method to make the gas machine work, then I have to completely redesign and improve the internal materials of the gas machine." Polina looked embarrassed, "If I want to choose special steel and Preventing melting problems during internal combustion, which can take a long time to solve. It can also be expensive."

This is a very real problem, and Polina must clearly point out the possible risks in the investment process.Of course, she can take advantage of this opportunity to receive the investment money, and then save all the tutor's salary.

After a year like this, she would be able to flee directly to other planets with at least forty gold pounds.Or even more sleazy, disappearing with 540 gold pounds.

But... the consequence of doing so is that her invention completely loses the opportunity to continue to develop.And she will inevitably be wanted by the empire, and will live in anxiety forever.

Polina doesn't want to see this happen.She would rather work hard on her own and invest the money she saved in improving the gas machine.

A gold pound a week was enough for her to build at least one more gas machine.

There is no need to take the risk.

Dusande had already prepared a solution to this problem, but he really did not expect that Polina would specifically explain this problem after she issued an investment proposal.

"I appreciate your honesty." Du Sande nodded with a smile, and then said, "However, this problem is not difficult to solve."

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Rolling over from the bed like a carp, Dusande is full of energy today.

After a three-year struggle, he finally won the privilege of dressing and washing himself when he woke up in the morning.As long as there is no prom, he can decide what clothes he wears every day, which is the maximum "freedom" he can get.

And such "freedom" may be gradually deepened starting today, which makes Du Sande full of expectations for the future.

"Good morning, dear." In the dining room, my mother was eating breakfast in ordinary home clothes.After seeing Dusande with messy hair appearing in the restaurant, she got up and smoothed her son's hairstyle as if he had experienced an explosion, and then said, "You got up early today."

"Ms. Paulina will come to teach me today, right?" Dusande couldn't hide his excitement. He sat in his seat, then grabbed the bread on the side and stuffed it into his mouth, "I've been waiting Too late!"

"I'm afraid Ms. Polina won't come to teach you so soon, dear." Baroness Androni said with a smile, "Yesterday's presentation was so successful that she drank almost half a bottle of Bordeaux at the ball excitedly." Red wine. Hangovers and hangover headaches are not easy to get over."

After finishing his breakfast quickly, Dusande began to move around in the courtyard of the manor.Don't even think about strenuous exercise just after eating a full meal.Like the old man he had seen in the park in his previous life, Dusande began to walk along the riding path paved with white stones while shaking his hands at the same time.

In order to protect the hooves of those precious horses, these stones specially transported from Olym must be polished in advance-not too sharp, but not too smooth.

After digging a tunnel about a quarter of a joule deep in the middle of the lawn, use charcoal as a base and lay polished white stones on top.This is considered to have created a riding trail suitable for horses to run.

After walking on the horse riding path for a while, feeling his body was completely warmed up, and at the same time his head was slightly sweaty, Dusand saw Lorraine sitting on the side saddle at the corner of the horse riding path.

"Good day, Ms. Lorraine." Dusand waved happily at Lorraine, "You came early today."

"Today is Teacher Polina's first day of class." Lorraine, who was holding a thick and hard notebook, reined in her little white horse and gently wiped the sweat from her forehead. "I have never touched a machine before." Design related courses, so I decided to come here early to preview."

"Then you may be disappointed." Dusande rubbed his wrists with both hands until the redness was slightly swollen, "I heard what my mother said before-after we left last night, Teacher Polina drank A lot of alcohol. I probably can't come to class according to the original schedule."

Lorraine glanced at Dusand who was rubbing her wrist and asked, "Have you seen Teacher Paulina?"

"Not yet." Dusand shook his head, "Disturbing a hungover lady is not what a gentleman should do."

Lorraine smiled slightly, "Then your judgment may have been wrong - the Baroness was not in the lounge last night, and did not see Teacher Paulina's expression, but you..." Her smile became stronger , "You don't understand women."

After knowing that Dusande had a solution to the difficulty in starting the gas machine, Mrs. Polina's eyes were as excited as if ladies saw a huge diamond at a good price.

They will never give up their plan to go shopping in a steam carriage early the next morning because of their hangover the day before.

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The class that was originally scheduled to start at [-]:[-] a.m. was finally postponed for a quarter of an hour.

"I'm curious what the solution you were talking about last night." Polina's hair is meticulous, but the dark circles on her face and the occasional frown between her brows suggest that she is suffering from a hangover. torment. "I've thought about it for a long time, but I still can't figure it out."

"Before I answer, maybe you can finish this glass of warm water first." Dusande didn't answer the question directly, he just insisted on asking Polina to drink more hot water. "It's great for relieving hangover headaches."

The headache after a hangover is due to the dehydration of the brain due to the diuretic effect of alcohol.The shrunken brain, which floats in the cerebrospinal fluid, is more likely than normal to float and bump against the skull.That's why there is a "headache" caused by this position change.

And the solution to this headache is simple -- drink plenty of hot water.

Polina reluctantly began to fill the cup with hot water, and Dusande began to explain her thoughts in satisfaction after seeing the other party drink more than half of the glass of water.

"From the appearance, your invention itself is a compression ignition ignition." Dusand started to reason from the appearance of the gas engine, "The compression ignition temperature of the gas itself is relatively high, and it is even higher at the equivalent altitude. The compression ignition of the gas is very difficult in Newsail, where the temperature is higher and the temperature is lower than that of Orin."

Polina put down her clean water glass and said to Dusand, "So... your first contingency plan was to increase the oxygen supply?"

"This solves the problem of a higher equivalent altitude, but this method can only be used as a temporary solution." Dusand nodded and said, "To solve the difficulty of starting, we can start from two angles-making compression ignition more Easy, or increase the air intake."

Finding these two angles isn't really that difficult, but solving them... is a pain.

Polina frowned and asked, "Is there a specific plan?"

"To make compression ignition easier, I have two solutions." Dusand said very confidently, "Heat the fuel delivery pipeline to increase the temperature of the gas before entering the cylinder, or spray ether into the cylinder in advance. These two Both solutions should be relatively easy to solve the problem of difficulty in starting the gas machine."

The key to the compression combustion process is to rapidly heat a mixture of fuel and air under high pressure to its ignition point and burn it.Of course, electric ignition can achieve this process relatively easily, but the relevant knowledge required for high-voltage electric ignition... Du Sande himself does not have it.At the same time, the empire does not seem to have carried out related research.

Then, only in the context of fuel temperature.

Pre-heating the gas is a good way to lower the compression ignition threshold, and much the same is true of pre-injecting ether.

The compression ignition temperature of ether is very low, and its ignition point is much lower than that of gas under high pressure in the cylinder.In other words, it can pre-combust, then drive the gas to burn, and make the subsequent combustion operation possible.

Polina's invention is not only epoch-making, it is a very advanced internal combustion engine model.This internal combustion engine has four cylinders, and it has been a four-stroke design since its inception-compared to a single-cylinder two-stroke machine, such a gas engine can directly skip the electric spark plug technology that has not yet appeared, and put the internal combustion engine directly into use.

Polina looked at her students in shock, and asked in a low voice after a long time, "Have you... seen similar machines before?"

"No." Dusande showed a bright smile, "However, a lot of knowledge is common, as long as you understand the principles, it is not difficult to make some improvements. I am really grateful that you can invent such a masterpiece And was shocked - the maturity of this machine is so high that it can be put into use almost immediately."

Two internal combustion engine enthusiasts, one big and one small, exchanged the content they were interested in with bright eyes, while Lorraine, who was holding a dipped quill and preparing to record the content of the class, was a little at a loss.

The communication between her fiancé and the teacher... She couldn't understand a single word.

(End of this chapter)