Chapter 130

Qin Guan is addicted to racing.

Driving the leopard-2 tank gives people the feeling that the Ferrari in the car is extremely smooth. Under any circumstances, its chassis will give people a kind of confidence.

But the T-72 is not.

When Qin Guan stepped onto the T-72 cab, he still wore the special helmet for tank soldiers, and then pressed the start button.

"Hiss, hiss, hiss." the sound of the compressed air motor came from behind. The engine emitted black smoke, but it just didn't start.

What's going on?

Qin Guan didn't start the engine twice in a row. He was worried immediately: "isn't this tank bad?"

This is not the exchange of Qin Guan, but the exchange of state secrets from abroad. Will the other party build a broken tank to deal with it? If so, how can it compare?

Qin Guan was confused.

Technicians are also confused. Someone has planned to open the engine cover at the back to see what's going on. Although this is a new tank, its engine is gradually improved from the previous engine.

Qin Guan also planned to climb out of the tank. When he looked down, he suddenly found a switch: "I know, I know what's going on."

Although the T-72 tank is improved from the previous engine, it also has its own advantages, that is, it adds a multi fuel selection knob.

When on the battlefield, once the tank loses its fuel supply, it is a living coffin. At the same time, because the fuel is different, it can not be added even if there is one.

For example, if a tank uses diesel but has only gasoline on hand, what should we do?

Therefore, multi fuel hybrid engine appeared. Now the T-72 can use diesel, kerosene, gasoline and mixtures of these fuels. When there is a real shortage of oil, even the marine heavy oil can be burned. When using different fuel, the driver needs to control it by turning the runner and adjusting the fuel supply rod.

At this time, the knob is adjusted to the position of gasoline, and of course, diesel is added.

What should I do?

"Clean the oil circuit and refuel." Qin Guan said, "it's really a trouble."

Although it is called a multi fuel hybrid engine, it is quite troublesome in practical operation. For example, this tank used to burn gasoline, but now its own side uses diesel, which can not be mixed. It must first pump out all the oil inside and clean the oil circuit before adding diesel.

In fact, it is quite chicken ribs.

When Xiong and Han held a joint exercise, they burned kerosene when they drove over. Han was very generous to provide them with diesel. As a result, Xiong's tank soldiers refused to live or die and waited for their fuel vehicles for a long time.

Because they are afraid of trouble, cleaning the oil circuit is a hard work.

Now it is.

Qin Guan only provided suggestions. At the same time, he introduced to others that this engine can use multiple fuels, but now it is very troublesome.

Several technicians began to work nervously. After more than an hour, they cleaned the engine and filled it with diesel.

Although mixed fuels of various fuels can also be used in the introduction, the actual operation is a disaster.

"Hiss, hiss, boom." finally, the fire was successfully ignited this time. Qin Guan sat in and pulled the operating levers on both sides, and the tank began to start.

Driving this kind of tank, like driving a crawler tractor, is controlled by operating levers on both sides, and all kinds of functions are on the operating levers.

In terms of mechanical device, when the engine comes out, there is a 3-DOF planetary mechanical gearbox with the same structure and manual hydraulic control on both sides of the vehicle body. It has 4 planetary rows, 6 controls, 7 forward gears and 1 reverse gear. In addition to speed change, it also has the functions of steering, braking and cutting off power.

Now, when Qin Guan wants to drive in a straight line, he needs to shift the transmissions on both sides into the same gear at the same time, and ensure the synchronous operation of the transmissions on both sides through the left and right control valve cores of the rigid linkage shaft.

In this way, the tracks on both sides start synchronously.

The process is slow.

The operating lever is continuously pulled back, and the speed gradually increases. When it accelerates to 30 km / h, it takes more than 20 seconds.

Qin Guan started the tank and listened to the rumbling sound behind him. He pushed the operating lever on the left forward to make the gear of the gearbox on the left one gear lower than that on the right. In this way, the speed of the left track was low, and the right track maintained the original speed, and the tank began to turn left.

This control requires technology. Fortunately, Qin Guan was very experienced when he was in the factory.

When he drove to the earth slope, Qin Guan didn't have the courage to fly. He stepped on the accelerator to climb the slope. When the track in front began to hang in the air, he began to loosen the accelerator.

"Bang!" the tank fell heavily and his head hit it. If he hadn't been wearing a thick hat, his head would have bled.

Open leopard-2, is a kind of enjoyment, open T-72, is a kind of torture.

Then, the front came to the mud pit. Qin Guan slowly pushed the operating levers on both sides to the third gear, so that the tank could rush in at enough speed without stalling because the torque was too low.

But he still has no confidence.

The accelerator has reached the end, the engine at the tail is whistling, breaking out the maximum power of 780 horsepower, the crawlers on both sides are clattering, and the front body has got into the mud. Then, the engine becomes dull.

Qin Guan pushed the operating levers on both sides and lowered them to gear 2, then gear 1.

The body of the tank has completely entered the mud pit, and the engine emits black smoke, which is obviously quite laborious.

Fortunately, the tank is still moving forward, moving forward. Finally, the track in front touches the slope and begins to rise.

Can you climb out?

"Chutu." the engine stalled after the last black smoke.

Moving forward in the mud is already its maximum ability. Now it has to go uphill and can't support it at all. In this way, after a few roars, the engine stopped completely.

"Hiss, hiss, hiss." the compressed air motor roared and started the engine again. Qin Guan had to try it a second time.

Throttle to the end, first gear, rush up!

"Rumble, rumble." the sound of the engine rang for less than ten seconds and stalled again.

Open the hatch cover on the top and watch the mud almost spread to the car body. Qin Guan shook his head: "no, I can't go up."

Although there are many factors in whether it can go up, there is no doubt that the engine is the most direct embodiment. Now, looking at the tank lying in the mud pit, almost everyone has an idea. The chassis of leopard-2 is absolutely the most secure!