Qin Zhenhua was also happy, and another thing was solved.
The Frenchman came to him with three engines and six transmission systems! Moreover, the Frenchman's transmission system was matched with 1,500 horsepower, and the British transmission system could only match 1,200 horsepower.
Different.
Whether it is British, French, or German goods, they are all automatic variable boxes, which can automatically switch gears according to needs, and are controlled by chips. After getting these equipment, Wang Xiaoqiang will also give him enough samples. He can
Designed our own related chips.
After all, you are worried about always purchasing other people's things. You must base your own weapons and equipment on your own production.
Parker was also very happy. He didn't have to go out now. Then he came back and signed the contract before talking about it. Qin Zhenhua also found it funny at this time. This was very similar to the bargaining that was popular in the market at this time. The ultimate bargaining is
Leave and wait until the other party turns around and calls you, then you can come at your own price.
After signing the contract, he enthusiastically stayed with Groz and spent lunch together. In the afternoon, Qin Zhenhua took Groz and others to the factory to see the diesel engine.
The British engine was loaded in a large box. According to the agreed plan, the British would not participate in the tank research and development. The supporting problems were completely solved by the first-machine factory, but a detailed instruction manual was given.
.
In fact, as long as simple data is given, the engine volume, the position of the output shaft, etc., the one-machine factory can install it on the tank, but in order to make the engine perform the best effect, the instructions for the engine given by the British
It is quite detailed, and even the internal structure is clearly introduced.
Obviously, the British have confidence.
It can't be copied by surveying and mapping. When I planned to imitate the German MTU engine and reversely complete the research and development of the tank engine, the engine station failed. When the materials and technology did not meet the standards, I knew that the internal structure was not
Any value is at most something that you know the design plan but cannot be copied.
"This engine uses a V-shaped 60-degree angle, which is similar to our engine." Wu Ruihua next to him said. As an old technician who has been studying engines for a lifetime, Wu Ruihua is about this British man.
The engines sent were also very interested.
The manual also introduces the history of this engine.
As early as the late 1960s, in order to meet the growing demand for automotive diesel engines, Rolls and Rolls began to explore the possibility of using a V-shaped structure to increase power based on the company's Eagle-type inline 6-cylinder diesel engine. It entered specific research in 1969.
, formed a series, for example, first, the V-shaped 90-degree angle 8-cylinder CV8 diesel engine was studied, the cylinder bore was determined to be 135 mm and the stroke was 152 mm. Then, the cylinder row had a CV16 and an angle of 90 degrees.
There are 60-degree CV12 3 basic models, each with multiple military and civilian variants.
During the research, they quickly made a breakthrough, achieving the single-cylinder power index of 100 horsepower, and later increased to 125 horsepower, or even 150 horsepower.
For the Eastern powers, engine power has taken a long and tortuous path, but the British have gone very quickly.
After the 1970s, the Iranians ordered the Iranian lion main battle tank. According to their requirements, this tank required 1,200 horsepower.
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In November 1974, the tank contract was signed, while the Rolls-Royce started testing in October. By April 1976, the first CV12 began to operate and was put into mass production at the end of that year. It can be seen that it only took the British two years.
The engine research and development was completed. Of course, the early preparation was very solid.
Originally, this engine had great potential, with 1500 horsepower, 1800 horsepower, and even 2000 horsepower versions. Even the 1500 horsepower version has been developed, but it has not been put into production.
(East China is also puzzled. Isn’t it better to use a 1,500-horsepower engine for the challenger? Why just hold the 1,200-horsepower version? Is it actually a problem?
)
After the engine was developed, Rolls & Rolls began to expand the international market of this engine and made many efforts. However, the sales channels of this special tank diesel engine were not easy to open, and until now, there was still no gain.
This is also the reason why the British value Khalid tank contract. Even if the engine is provided for free, they are willing.
"This engine looks very good." Parker is also an expert. You can see at a glance that the engine's small size can greatly reduce the power compartment of Khalid tanks, reduce the tank's self-weight, etc., which is nothing to say.
Next: "It's as small as the engine used in the 85 tank now."
The 85 tank uses a 1,000-horsepower engine that should have the same structure as it, with a V-shaped 12 cylinder with an angle of 60 degrees, and even the turbochargers on both sides are similar.
"Yes." Qin Zhenhua said: "The performance of this British tank engine is fine. We will install it on a 90-2 tank. The corresponding prototype should come out next year."
"I will definitely come and see you again by next year," Parker said happily.
He knew that this prototype car was a brand new prototype car. It would definitely take several months for the first machine factory to build such a prototype car, and he could afford it.
"We will build two, one to test with us, and one to your side." Qin Zhenhua said.
Since you want to do it, you have to hurry up. Qin Zhenhua has always been in a hurry to do things: "However, if you like this engine, there may be difficult negotiations next."
The British engines are good, but negotiations on the purchase price of the engine and the negotiation of the overhaul line all require energy, and it may not be possible to negotiate.
Of course, these things are not a headache for Qin Zhenhua.
"It uses a direct injection semi-divided ω-type combustion chamber with vortex current suitable for high injection pressure. This kind of combustion chamber should be a choice made after multiple research." At this time, Wu Ruihua was still immersed in
In technical documentation.
The principle of the engine is simple to say, but it is complicated to study. Especially the process of injected diesel combustion is a complex fluid law. In many cases, there is no mathematical model to simulate it. It must be studied before it can be determined.