In the office, Yu Wen I talked with the visiting Wu Changqing. The two sat on a chair across the coffee table. Wu Changqing worked in a military technology research institution (also known as "Sha Polang"). His identity was a bit sensitive, so there were "special service personnel" following him when he was traveling.

At this moment, these "special agents" were waiting outside the office, looking like they were indecisive.

The Turkic Khanate had a position of "special service", but the "special service" of the Zhou State referred to "special service", which was similar to the security personnel. Yuwen I knew this, so it was not surprising.

Wu Changqing is a capable middle-aged man with a good appearance, dark skin, hair and a very capable look. Yu Wen Xiao thought that this person probably often stayed in the army and was urging some strange equipment, sleeping in the open air, regardless of wind and rain, so he was so dark and had a look of vicissitudes.

"I read the journal and saw the theory of internal combustion engines. To be honest, it's really good. If it can be developed, it would be amazing." Wu Changqing said with a smile, looking through the information in his hand.

The information is provided by Yuwen III. The above introduction to the theory of internal combustion engines and the current development situation. Wu Changqing seems to be very familiar with machine power, so he can talk to Yuwen III.

"You know that steam engines sometimes react a little slower, especially when it comes to ignition and boiling boilers, it takes too long. After all, boiling water always takes time."

"If it is for civilian use, it is nothing, but it involves military use, which is a bit troublesome. For example, the navy's steamboat is parked at the dock on weekdays. If it is not necessary, it does not require boiling the boiler at all times, so the water in the boiler is cold."

"If one day, the enemy attacks and the navy soldiers want to drive the boat, they have to burn a boiler for an hour or two to make the boat move, and the food will be cold at that time."

"But steam boilers take time to boil water, and cold start is to consume time. In order to alleviate this problem and shorten the steam engine startup time, we have thought of many ways."

The "we" mentioned by Wu Changqing, Yuwen I knew that it was referring to the technicians of "Sha Polang". The other party visited the door and said something about the steam engine. It seemed a bit inexplicable, but Yuwen I knew that it must be meaningful, so I listened carefully.

"We thought of many ways, but they all had little effect. The technical characteristics of the steam engine are just like this. You have to boil the water to boil the water to produce steam. This hurdle cannot be avoided."

"It's better to keep the alert warship in the heating state. After all, the time for hot start is always shorter than that for cold start."

"Everyone's efforts have no result, but the skills accumulated in the process of hard work are real." Wu Changqing said this, took a sip of tea, put the information on the coffee table, and looked at Yu Wen Il.

"I read your article carefully and noticed a problem."

Yuwen I nodded and made a gesture of "please say".

"As the name suggests, internal combustion engines are to let fuel burn in the cylinder, so they are called internal combustion. The fuel used is currently gas. Because gas is easier to control, there is no residue when burned. However, your articles are not clear about the details, so I want to confirm..."

Wu Changqing picked up the teacup and placed his finger in the middle of the teacup: "When the gas in the cylinder is burning, is the piston in half the position of the cylinder?"

"Yes." Yuwen I nodded.

"So, when the gas enters the cylinder, is the piston also in half of the cylinder?"

"Yes."

Wu Changqing looked at Yu Wen Il and suddenly smiled: "Why are you so stupid?"

"Hmm?" Yu Wen I was stunned when he heard this, and then asked back: "Is it a third position? a quarter position? or a two-third position?"

"But we've tried it all, and one-half position is more suitable."

Wu Changqing smiled and said, "No, no, no, I'm not saying this. Have you ever thought that the gas after entering the cylinder will be compressed by the piston and then ignited, and it will be more powerful?"

As soon as he finished speaking, Yu Wen I was stunned.

Wu Changqing continued to use teacup as a metaphor, treating teacup as a cylinder and his own fingers as a piston in the cylinder.

"Look, when air intake, the piston can reach the bottom, so that the gas entering the cylinder will maximize its volume." Wu Changqing first put his finger at the bottom of the teacup, and after saying that, he lifted it up and lifted it to the middle of the teacup.

"The piston returns to the middle position and the volume of the gas is compressed to half, that is, the compression ratio is two, and then ignites it. At this time, the force generated will increase significantly year-on-year."

Everyone is an insider in the industry, so some problems are revealed at once, and Yuwen I immediately understood:

Also, when the piston is located one-half of the cylinder, this intake-compression method doubles the gas involved in combustion, the resulting gas naturally expands much larger and the thrust increases.

He stood up excitedly: "Why didn't I expect it?"

"It's too late to think about it. We have applied for a patent for this compression-burning technology." Wu Changqing smiled and added: "But this is a free patent. After all, we don't make money by this, we just need an honor."

Yuwen Yin was quite happy, but also a little confused: "Why can't we find this patent in the patent list of the Patent Office?"

Wu Changqing replied: "It's very simple. This is declared according to military technology. The compression ratio of gas and fuel is different, and the power after combustion is different. After the Patent Office approved it, non-military technical institutions will not be found if the level is not enough."

"If someone applies for a similar patent later, they will only be told that someone has applied for it, knowing what the patent number is and what the introduction is."

Yuwen I nodded with joy. He was very grateful for Wu Changqing's special trip to help. The other party helped a lot. The current internal combustion engine only needs some adjustments to greatly increase the output power.

Of course, if other problems are not solved, the internal combustion engine still has no practical possibility.

As he spoke, Yuwen asked, "How do you know that the power of 'compression-burning' will become greater?"

As soon as he finished speaking, he knew that he had made a mistake: most military technology is very high insecurity, so he shouldn't have inquired about it.

Wu Changqing could see that this was an unintentional mistake and did not care about it. He should keep this kind of thing confidential, but it would be okay to talk about it appropriately.

Seeing that Yu Wen I was a little embarrassed, he waved his hand and smiled: "We are considered colleagues, but the research directions are different. What you are studying is how to benefit the people efficiently, and what we are studying is how to kill the enemy efficiently."

"How to maximize the power of combustible gases burning is one of the key points of research."

When a smart person speaks, he just clicks and stops. Yuwen I probably understands why the other party thinks of "compressing-burning" the combustible gas to increase its power.

Obviously, this technology can be used in internal combustion engines. The compression ratio of fuel (gas) will vary, and the magnitude of the thrust generated will also vary. Which compression ratio is the most suitable, further research is needed.

Wu Changqing made a special trip to the door for technical exchanges, which is more convenient than letters. After all, there is no friendship between the two and no communication between the two institutions, so it is better to say a few words to the door.

Now that the purpose has been achieved, Wu Changqing said goodbye, Yu Wenhua stood up and gave it to him. He sincerely thanked the other party for his help.

Wu Changqing said with anticipation: "You guys, if you want to be grateful, you should quickly develop the usable internal combustion engine and let the warships use it. That would be a great achievement."

Yuwen Yin felt a little embarrassed when he heard this: "I'm afraid this is not possible. Even if the improved internal combustion engine is made, the steam engine used in warships often has a power of hundreds or thousands of horses. Where can the internal combustion engine withstand it?"

"You don't need to take the lead, just use auxiliary power." Wu Changqing finished speaking and sighed: "At least, before the boiler is burned, the warship can have some ability to move. Otherwise, if the enemy attacks, the warship will bend at the dock like a dead pig. How can that be?"

"You know, even a tow boat has to boil water by boiling the boiler."
Chapter completed!