Cancel my college entrance examination? The development of sixth-generation fighter jets shocked the

Shaftless pump technology!

After hearing Xu Hao’s words, Mr. Huang’s eyes lit up and he suddenly became interested.

“Oh? Xiao Hao, tell me…”

He was a little curious about what Xiao Hao said.

Other scientific researchers in the conference room also turned their attention to Xu Hao.

If Xu Hao had said such words before, they would have felt that he was showing off.

But now I definitely don’t have such an idea.

Xu Hao’s strength shown during this period was noticed by everyone.

Even though they are in different fields at the moment, they still have a listening and learning attitude.

Xu Hao said.

“Old Huang, you are an expert in the field of nuclear submarines. You must also know that the biggest characteristic of nuclear submarines is to ‘take them by surprise and attack them unprepared.'” ”

And to do this, you need to make the submarine ‘silent’ so that it can survive. Ability and attack performance can be brought into full play.”

Mr. Huang nodded in agreement.

“Yes, this is the most basic and important aspect of a submarine.”

“Its attributes are equivalent to that of an assassin, making it impossible for the enemy to detect its traces, and then launch attacks with lightning speed to annihilate the enemy. It is an important means of defense and attack.”

On nuclear submarines, the level of noise is an important criterion for judging the performance of nuclear submarines.

Nuclear-powered submarines with superior performance often have very low noise.

For example, the underwater noise level of the Yingjiang Seawolf-class nuclear submarine can reach 95 decibels, making it the lowest-noise nuclear submarine in the world.

The underwater noise of Mao Xiong’s most advanced Beifeng-class nuclear submarine is around 100 decibels, which is almost similar to the background noise of the ocean.

Dragon Country started late and lags behind Eagle Sauce Country and Mao Xiong Country in terms of noise performance.

For example, the noise of the earliest Han-class nuclear submarines was as high as 140-150 decibels, while the noise of 093 and 094 was reduced to 110-120 decibels.

but.

As we catch up, the underwater noise of 095 and 096 nuclear-powered submarines can also be controlled below 100 decibels, which is almost the same as the nuclear submarines of Eagle Sauce and Mao Xiong.

But obviously, this is not enough!

In response to this, Xu Hao put forward his own ideas.

“The main source of noise in nuclear submarines is the propulsion device.”

“So, if you want to make an absolute breakthrough in noise, you must work hard on the propulsion device.”

Xu Hao stood up from his seat and came to the small desk at the front of the conference room. blackboard.

Pick up a carbon pen and write on it.

“The current mainstream nuclear submarine propulsion devices can be roughly divided into three types: propeller thrusters, pump-jet thrusters and magnetic flow thrusters.” ”

Propeller thrusters mostly use low-speed multi-blade high-inclination propeller designs to reduce submarine noise. , and improve propulsion efficiency. For example, our 095 nuclear submarine uses a seven-blade propeller and a fillet structure.” ”

But no matter how it is designed and how the blades are added, the cavitation generated by accelerating the blades will produce a lot of noise. This is It’s inevitable.”

“To address this problem, my suggestion is to use a pump-jet propeller!”

Upon hearing this, Mr. Huang’s eyes flashed and his brows furrowed.

on the one hand.

He was surprised by Xu Hao’s insights on the nuclear submarine.

did not expect.

I originally thought that Xu Hao had only made achievements on nuclear-powered aircraft carriers, but I heard his well-founded analysis just now.

He seems to have been involved in nuclear submarines?

And it’s not shallow?

The main thing.

Regarding Xu Hao’s proposal to use pump-jet propellers, Huang Lao had a big question.

he asked.

“Xiao Hao, your idea is very good.”

“But what you need to know is that pump jet propellers are essentially the same as propeller propellers.” ”

They still use a drive shaft to drive the propeller to rotate and generate reaction force. Propelling the submarine forward.”

“The only thing is that it reduces the noise generated by the rotation of the propeller to a certain extent.”

They have also studied pump-jet propellers, but the effect is not good and the cost is high.

Huang Lao’s doubts did not deter Xu Hao.

He smiled slightly, full of confidence.

Looking at Mr. Huang, he said.

“Mr. Huang, what if the drive shaft is cancelled?”

Hearing this.

Mr. Huang’s face was stunned, and his brows instantly rose.

“Cancel the drive shaft? This…”

He lowered his head and thought.

Eliminating the drive shaft will greatly reduce the noise caused by the rotation of the drive shaft.

Now, the mute effect will be significantly improved.

But…

if the drive shaft is eliminated, how will the blades be driven?

It seemed that he saw the doubts in Huang Lao’s heart.

Before Mr. Huang could ask, Xu Hao spoke bluntly.

“Cancel the traditional drive shaft, install the propeller blades inside the annular duct, integrate the power device inside the annular duct outside the submarine, and let the motor drive the blades inside the entire annular duct to rotate together!” “In this way, the entire annular duct

will rotate together!” It will greatly reduce the cavitation noise at the propeller wing tip. At the same time, the noise from the rotation of the drive shaft will also disappear.”

“Not only these…”

“Shaftless pumping can greatly save money inside the submarine because the power source is outside the submarine. space, the overall combat effectiveness of the submarine will be significantly improved.” ”

Moreover, the shaftless pump can be flexibly arranged and can be arranged in almost any area at the tail of the submarine to improve propulsion efficiency. It can be reversed and reversed in advance!”

After Xu Hao finished speaking, The entire conference room fell into a long silence.

Even Huang Lao was staring blankly at Xu Hao and what he wrote on the small blackboard.

Those cloudy eyes were full of shock and disbelief at this moment.

It took him a while before he came back to his senses.

Looking at Xu Hao blankly, his mouth slurred.

“Genius!”

“Xiao Hao, you are really a genius!”

“Using shaftless pump technology, the noise of nuclear submarines will reach terrifying levels.”

“Such a nuclear submarine is completely like a real big black fish under the ocean. , invisible, invisible and soundless. Take it by surprise and attack it unprepared. By the time the enemy reacts, it is already too late!”

“Huh…”

Mr. Huang stood up excitedly and walked tremblingly towards the small blackboard.

See this.

Xu Hao was startled and hurriedly stepped forward to help him.

Huang Lao did not refuse and held Xu Hao’s wrist tightly with his palm.

You can imagine how excited this ninety-year-old man was at this moment.

He pointed to the small blackboard filled with content written by Xu Hao and asked Sun Su.

“Sun Su, give me this small blackboard. If you have any requests, just ask!”

Sun Su, who was originally shocked by what Xu Hao said, was even more shocked when he heard Huang Lao’s words?

? ? ?

what’s the situation?

Mr. Huang didn’t even miss the blackboard of the 701 Research Institute?

But…

he obviously knew that what Mr. Huang valued was not the small blackboard in the 701 Research Institute, but what Xu Hao wrote on it.

Naturally, he was embarrassed to refuse and agreed directly.

“Huang Lao, why don’t you give it to me if you want it? Hahaha…”

Seeing Sun Su agree, Huang Lao was satisfied.

Looking at Xu Hao, he said from the bottom of his heart.

“Xiao Hao!”

“You are really underestimating your talents by staying in 701…”