Bangs first wrote a title, Pump Pushing Technology Theory!

Then I started writing, pump push is a type of propulsion that uses the power of water to generate thrust.

It is to accelerate the water flow through the pump, and then spray the high-speed water flow through the nozzle, creating a reaction force to propel the ship forward.

Compared to propeller propulsion, pump thrust is more efficient and quieter.

In fact, in 2020, many submarines and ships have adopted this pump-push technology.

Whether it is a pump or a shaftless pump, it is a jet of water.

After making a theoretical summary, Liu Hai also planned to draw pictures.

Of course, this can be called a submarine, or a semi-submarine.

As for the invention of a death row prisoner that you later saw in the news media, it's good for everyone to take a look at this, because there are too many loopholes in it.

It just so happens that the bald eagle has developed too well over the years, and people's lives are empty, lonely and cold.

This is unreliable, it is really unreliable for others, but it is reliable for bangs.

Thirty is like a wolf, forty is like a tiger, although last night I worked overtime with the widow next door until the early hours of the morning, but tonight the widow next door came again.

And this kind of motor has a lot of advantages, long life, low heat generation and so on.

"You mean we can make it simpler?" Sun Aiguo became energetic when he heard this.

"Just be a toy."

"Will you arrange the time, or will I arrange it?"

When both rotors spun rapidly, everyone applauded.

Coming out of Sun Aiguo's side, Liu Hai went to the turboshaft engine workshop again.

"Ugh!" Sun Aiguo felt okay when he heard this data.

The others also hid far away after the preparations, and the helicopter had to be far away when it was tested, and no one knew if something would happen to him.

This motor is one size smaller than the same three-phase asynchronous motor.

Hearing this, Liu Hai said: "It's no problem to build a 20-meter-long one and pack a few tons of things, but this kind of thing can only sail in a very shallow position under the water's surface, and there is no way to dive deeply." ”

The big guy with a length of 30 meters and a height of nearly 6 meters looks like a behemoth in the workshop.

But that thing is also very good, it can transport 7 tons of goods at a time.

"Okay then." Liu Hai couldn't understand that these things were a little unreliable, why did the leader let them do it.

However, for those big customers in South America, the simpler the better, and the simpler the lower the cost.

Of course, the bangs are designed with design software, and then they are copied when they are designed.

"Go, go back!" Liu Hai nodded, since the teacher asked like this, he definitely wanted to go by himself.

Everyone thinks that radar is 360-degree scanning without dead ends, but in fact, radar has an angle scanning, and there are also dead ends.

The transmission unit uses a battery, a motor, and a generator.

And what is the S300, the S400 is also blowing too much.

Sun Aiguo felt that the big toy of bangs might not be good at dealing with other aspects, but it shouldn't be a big problem to deal with the one on the other side of the sea.

In addition, the body is small, and it is also made of materials such as fiberglass.

To put it this way, radar is like a flashlight at night, not like the sun rises during the day, illuminating your surroundings 360 degrees.

"It's a general theory, mainly because these things underwater are too complicated to make, and if you want to make something simpler, it doesn't feel interesting." Bangs spoke.

"I didn't say that I wanted to build a real submarine, toys are toys, anyway, now that our dockyard is empty, what do you mean by toy?" Sun Aiguo asked again.

Anyway, it's a one-time big toy, and it directly uses fiberglass, plywood and the like.

Bangs simply ate something and fell asleep.

"What about battery life?"

"How many tons? What about speed? ”

What Liu Hai has to do is to take out the rare earth permanent magnet motor, that is, rare earth NdFeB.

"Leader, this is very troublesome, it involves a lot of things, and we make it a big toy." Bangs spoke.

It's not the first time I've tested a helicopter, and everyone is familiar with it.

When the superhelicopter slowly flies up, hovers at an altitude of 50 meters, and then flies forward and turns again.

The motor pushes the rotor inside to rotate, and the impeller on the rotor rotates and pushes the water flow, which is the shaftless pump push.

"Thank you, teacher!"

This pump pushing technique has a shaft in the middle, surrounded by blades, and a cover on the outside of the blades.

The relevant theories of brushless motors can be traced back to the 1900s.

Even the Ford aircraft carrier in the Bangs aircraft carrier space is not an all-electric system, this time because the electricity of Western countries itself lags behind us.

"But that doesn't seem to be much use?"

A puff of green smoke came out of the turboshaft engine, and then the rotors began to spin slowly.

Of course, it still depends on the overall performance of this large toy, as well as its application in subsequent tests.

Not to mention the strength of the motorcycle factory now.

The approximate shape of this is based on the approximate proportions of the submarine in the magazine.

"Then let's build it, and do scientific experiments."

Therefore, the bangs can only be designed according to this shape.

Bangs These people watching are outside the safe area and far away.

Since it's a toy, let's follow the idea of a toy.

Of course, the bangs are now just taking out the pump pushing technique.

Especially in the aspects of medium voltage, high voltage and DC, the world's most advanced power technology is ours.

Originally, Bangs didn't have much motivation to do this, but thinking that these toys could enrich the lives of Bald Eagle citizens, Bangs felt energetic.

"Just use fiberglass, right?"

"Teacher, you can arrange it, I didn't have any big projects here a year ago." Bangs nodded.

The ground tests lasted a week, mainly in some places that needed to be commissioned.

As for navigation, simple chart navigation is used, and sonar equipment is not needed.

After all, in 2020, some people will use submarines to sell flour, and the technical structure of submarines is simple.

"Half a month."

By 2020, our country will have a great advantage in the propulsion system of ships.

The subsequent turboshaft engines have been tested and can be used for final assembly on the aircraft.

And like this semi-submarine, there are no traces on the surface of the water, it is difficult to spot.

So by 2020, our ships are already launching the 3rd generation all-electric system.

The West has entered a misunderstanding in the early days, alternating current is very good, but because of some big people, the early West adopted direct current.

Because it's just below the surface, and it doesn't dive into deep water.

The principle of pump thrust technology is not very complicated, to put it bluntly, it is to use the rotation of the impeller to push the water flow, and then use the thrust of the water flow to propel the submarine forward.

From the earliest F117, it was blown up, but what happened after the actual battle in the end?

There are also some people who blow the tank active defense system 100% defense when it is tested, but after it really fights, it is like opening a can.

"Why don't you just make one like a toy?" Sun Aiguo thinks it's unreliable, that's right.

The first test flight lasted half an hour, and then the aircraft had to be inspected and maintained.

There is not much problem in making this kind of bangs, and it is even more advanced than this.

The next day, Liu Hai went to work, and in the office, he copied these things that he wrote in the aircraft carrier space yesterday.

As soon as I thought of drawing, I thought about whether to make it.

Liu Hai feels that unmanned technology will be applied to various fields in future wars.

As for the brushless motor bangs, put aside first, in fact, the earliest brushless motor was invented in 1955.

"Ugh!" Sun Aiguo felt a little unreliable when he listened to the idea of bangs?

But this one is not reliable, and it feels like it is right.

In the evening, Liu Hai went to Shi Niang's house to eat, but Shi Niang had no opinion on Liu Hai coming to eat every day.

Then he came out and returned to the attic, took out what he had written, and prepared to hand it over to Sun Aiguo tomorrow morning.

It is this kind of motor that has been widely adopted in electric vehicles in 2020.

Liu Hai handed over the design drawing of the mold to the equipment department, and he still had something to do, that is, the super helicopter began to be assembled.

After eating, I didn't care about resting, and then carried out the debugging tests of various systems, and after the test was completed, the super helicopter was towed out by a trailer and came to the external interview flight field.

After the final assembly, everyone rests for a while and then eats.

Liu Hai still stood aside with a walkie-talkie and listened to the command staff, and he did not personally command.

As the commander gave the start order, Liu Hai and the others looked at the helicopter.

In the afternoon, Liu Hai directly submitted the theoretical plan of pump pushing technology he wrote to Sun Aiguo.

UAVs, unmanned ships, unmanned submarines, unmanned tanks, and as for the army, there are robot dogs and the like.

In late October, the design of Liu Hai's toy submarine was completed, the length was only 20 meters, and the next step was to make a mold, that is, the whole premise was made of FRP molds.

Everyone thinks that these surface ships are on the water, that is, 360 degrees without dead ends.

This is a typical example of the latter coming from behind, because of the wrong direction, and of course the West is because of the mistake of capital.

At the beginning of November, the supercopter began official flight tests.

In the assembly workshop, Sun Aiguo and other big leaders came one after another.

The third-generation ship propulsion technology is called all-electric propulsion technology.

"Come, eat more!" During the meal, the teacher sandwiched a large piece of pig's feet to the bangs.

"Do you want to make a physical object?" After Liu Hai finished writing the theory, he came back to prepare the drawing.

The final assembly starts at 8 a.m. and is completed after 11 p.m., because everything else has already been done, just waiting for the engine.

The aircraft carrier space is more than 6 hours, in reality it is less than 5 minutes, an hour and 40 minutes, and only one minute outside.

"What materials are used?"

What if there is an accident? If there is an accident, there will be an accident, and whoever wants to improve in the follow-up will improve.

"Six or seven tons, ten knots."

There are various articles about submarines in magazines, but they are just a rough outline.

The day's tests went very well, but now it's just a ground test, mainly to test the performance of the engine, and other systems such as the control system, the power system, and so on.

That kind of submarine is the use of fiberglass technology, directly get some batteries in it.

In 2020, Bang Hai saw that those people in South America could be made in the jungle with simple equipment.

"Alas... I don't have to copy it! "In the evening, Liu Hai returned to the courtyard, and after entering the aircraft carrier space, he looked around through some magazines.

Similarly, we are ahead of the laser, and the radar was originally an active phased array radar directly on it.

The shaftless pump push technology is actually a large motor, and the whole cover is a coil and a rotor inside, which is different from the traditional sense that there is a shaft in the middle of the rotor, which has no shaft in the middle of the rotor, but an impeller.

"If you don't talk to two families, you're hard enough."

"Of course you can make ......... if it's simpler." Bangs nodded.

Then the bangs added a gold medallion.

However, Liu Hai thinks that it can be made, and when science and technology are developed in the future, he will engage in unmanned submarines.

The teacher and the teacher looked at the gold medal that Liu Hai took and didn't ask what the super helicopter was, but it can be imagined that this is not an ordinary thing.

The weather was already cold in late October, but everyone's hearts were hot.

But think about it, forget it, the main thing is that the series of structures of submarines are too complicated, of course, it can also be simpler.

It is said that it can run underwater for 2~3 weeks and sail at a speed of 7~11 knots per hour.

The blades push the water flow out from behind the hood, creating a powerful thrust.

It's nothing more than a certain director who wants to make some achievements, and this patent is there, but this patent also has a lot of problems.

"Our family wants to go back to our hometown this year, do you want to go back with us?" Zhu Haiyang suddenly asked.

As for the shaftless pump pushing technology, the bangs are not involved, because the bangs have to take out the brushless motor first.

"It's nothing."

The turboshaft engine prototype of the superhelicopter was tested for 300 hours without any problems.

"But if this thing is sold in South America now...... Ahem, toys, toys! Liu Hai suddenly thought of the small single-person plane he designed in his early years.

"Ah, so fast!" Sun Aiguo was also stunned by the speed of the bangs.

Listening to the skilled command and operation of various departments in the walkie-talkie, Liu nodded his head.

Everyone looked at the super helicopter, and such a big guy was also happy.

Fortunately, the bangs are hanging, and you can go to the aircraft carrier space to rest and rest halfway.

"Alas!" The junior sister looked at the commemorative medal that Liu Hai took back, and was very happy.

In fact, everyone understands wrongly, if the ship is really as powerful as the legend, then how can there still be the possibility of colliding with the ship?

Any weapon that blows too much will end up being slapped in the face.

After working in the aircraft carrier space for more than 6 hours, I finally wrote out the theory and drew a simple diagram.

It is said that the most advanced is more than 30 meters long and can hold 200 tons of cargo, and this thing can also dodge the most advanced maritime radar of the Bald Eagle, of course, it is difficult to say whether it really dodges.

Within a few days, Zhu Haiyang saw a different helicopter, with two rotors, and much larger, flying at the aircraft test site of the motorcycle factory in the distance.

"This is a super helicopter!" Zhu Haiyang had a guess when he saw this scene.

(End of chapter)