Chapter 1128: Turn off the fire after starting

The red oil drum was delivered to Pogba, who picked it up and poured fuel into the tank next to him.

In the process of transporting this engine, the fuel tank and the engine are separated, and for the convenience of transportation, there is no fuel, and now, after pouring the fuel into the tank, Pogba began to prepare for the start.

If it is a gasoline car, the fuel is burned, as long as the oil is refueled, but the diesel engine is not good, after the fuel consumption of the diesel engine is gone, the air will enter the oil circuit, from the fuel tank to the high-pressure oil pump, it needs to be exhausted, generally on the high-pressure oil pump, there will be a special manual exhaust valve.

Now, Pogba started to pull the manual exhaust valve there again, allowing the air from the diesel to escape, and just like that, after some tossing, he finally said to Pierre: "The preparations are done." ”

The crowd around them, under the organization of the security guards, spread out in a large circle, for fear that something would fail in their engine, but at the same time, there were more and more people surrounding here.

The big guys like to watch the excitement, here, with such excitement, of course, it will attract the attention of countless people, at this time, they are all waiting for the start of the engine of the French.

The French are proud, and their tank engine is unique, embodying the strange thinking of the French everywhere.

In this era, it is not easy to engage in turbocharged engines, high-efficiency turbochargers are not so easy to manufacture, and an important indicator of turbochargers is the average effective pressure, which increases the intake pressure, how big it can be, directly determines how strong the performance of the engine is.

The French's own tank diesel engine is the UDV X series, with a single-cylinder displacement of 2.06L, and its maximum speed of 2500 rpm, if you take the ordinary road, even if it develops into a 12-cylinder engine, you have to make the average effective pressure of the supercharger reach 2.14MPa.

How hard is this indicator? In the eighties, only the Americans used compound supercharging technology to achieve an average effective pressure of 2.32MPa on the AVCR1360, but this is only the data in the laboratory, because the production was too difficult, this engine was voluntarily abandoned, and then the XAV28-1450 reduced the average effective pressure index to the level of 1.81MPa. The average effective pressure of the engine of the current Leopard-2 tank of the Germans is only 1.754MPa.

And now, by using this turbo engine, they can achieve 1103KW power with a displacement of 16.72L in their own 8-cylinder, and its supercharger achieves an average effective pressure of up to 3.22MPa, which is definitely a data against the sky in this era.

The first URL

Now, the preparations began, starting the engine, also in order, the first to start, is the turbocharger model TM307B.

Let's hear the sound of the engine!

It's like when those airplane engines start, when the nine-kilowatt starter motor starts roaring, the whole showroom is captivated by the sound, and that's how it feels when you go to bed in the middle of the night and hear those motorcycles that are bombing the streets.

Like a whistle, the activation of this turbocharger is stimulating everyone's eardrums, and its speed quickly climbs, soon reaching the rated 40,000 rpm.

The composition of this turbine is not complicated, with a first-stage centrifugal compressor in front and a second-stage axial turbine in the back, which is characterized by its ability to work independently.

In this way, it can be used as an auxiliary power system to drive the operation of various equipment before the diesel engine is started, and at the same time, in cold conditions, it can also assist the diesel engine to start.

The ordinary supercharger is connected in series on the engine, so that there will be no mismatch and lag of the intake air intake of the ordinary supercharger engine, the two work in parallel, and part of the compressed airflow of the supercharger enters the engine, and part of it carries out a refueling device. The combustion exhaust gases drive the power turbine of the supercharger. When the engine changes, it is only necessary to adjust the air flow into the engine through a bypass valve.

Therefore, this set of devices is much more efficient than ordinary supercharged engines.

In the midst of this whistle, the independent turbine was activated, and after it was started, it was supposed to start the diesel engine, but just a few seconds after the whistle sounded, there was a pop and puff, and then, the whistle was gone.

Incredibly, their turbines went out after starting.

Turbine engine, as long as it starts, can work stably and reliably, no matter how the load changes, it is not easy to turn off, when the engine is found to be no movement, suddenly, several people are shocked.

What's going on?

Qin Zhenhua smiled there: "Disperse, the big guys are scattered, see it?" This thing doesn't even work! ”

"It's just that you can't even work steadily, and in this turbine, the air intake and the turbine don't match, right?" Dr. Wright also had a smile on his face: "If you want to engage in miniaturized turbines, it is not so simple, the gas turbines we developed in the early days of the United States are also unreliable, and they have been running for many years before they have stabilized, hey, can you not show us this unstable engine?" ”

"They don't show this, what do they show? Their French technology is at such a level, the big guys have seen it, right? "Thomas was there too.

"Quick, check what the hell is the problem." Pierre ignored the provocation here, and originally planned to use their engine to slap the other party in the face, but the engine was not powerful, and he was slapped in the face, and Pierre's forehead couldn't help but ooze sweat.

There must be no problem, hurry up and see, what the hell is going on?

"There is a blockage in the oil circuit."

These technicians, worthy of the elite, quickly discovered the problem.

"The filter is clogged."

"Replace the spare filter."

"But we didn't bring it."

"Then remove the filter!"

At this time, the crowd of onlookers, all there to watch the excitement, the French claimed that their engines were the most advanced, and the result? As a result, the diesel engine has not been started yet, just this turbine, after starting, it will turn off.

Miniaturized turbines, not so easy, only aviation powers can play around, and what about the French? Their aviation technology is obviously not good, their proudest Mirage 2000, which they call a third-generation aircraft, uses a single-rotor engine that is unique in the third-generation aircraft!

Thinking of this, you can also know how unbearable this engine is, don't do porcelain work without diamonds.