Everyone has heard of the advertisement of "Technology Nissan", and Nissan's accomplishments in engines are also very rich.
There is also a generation of famous machines.
Like Honda and Toyota, Nissan also has many "first generation famous machines" in the engine field.
There used to be a classic RB26DETT on GT-R.
For example, the RB26DETT in-line 6-cylinder engine used on the "God of War GT-R" that fans talk about.
"RB" stands for "Racing Foundation"; "26" stands for "2.6L displacement"; "D" stands for "DOHC (Double Overhead Camshaft)".
"e" stands for "electronic fuel injection"; "TT" means "double turbocharging".
With such a long string of codes, it can also be seen that Nissan has accumulated and publicized many technologies on this engine.
It's like when we just graduated and wrote our resumes, we really wrote everything we could think of. Should we all write down when we are the monitor and the dormitory supervisor?
Although the original factory claims that the RB26DETT engine has only 280 horsepower. However, a slight increase in turbocharging value can easily reach 350 horsepower, breaking through the so-called "gentleman's agreement."
Moreover, the original specially thickened cast iron cylinder block can withstand the output of 1300 horsepower without reinforcement, leaving a lot of imagination for later modification.
Of course, the cast iron cylinder block is not without its shortcomings. There is no bridge in "Head D": "Alas" the front of the car is too heavy, and this one can't beat me FC. Correct. That's the same problem.
"Modern VQ" series also wins awards every year.
In addition to engines for performance cars and racing cars, Nissan's technology in civil car engines is also on the list.
For example, the "Top Ten Ward Engines" for 14 years have VQ V6 engines, and this award-winning record is even worse than BMW's straight 6 engine.
The research and development of Nissan VQ engine started from 1983, 1994 was launched, and 1995 won the prize immediately.
The review of "Ward's Top Ten" reads: The smoothest and quietest V6 engine on the planet. Add "most".
Compared with the RB series mentioned above, the VQ series is much more famous in China: Nissan's old models, Teana, G25 and G37 from finidi, England have all been used.
In fact, it is difficult to find a second manufacturer who has made achievements in both Zhi 6 and V6 like Nissan. People usually make one.
Before 1983, Japanese car companies could not manufacture V6 engines due to technical blockade. It was not until Nissan launched VG series engines that it successfully broke through technical barriers.
The VQ mentioned just now is developed on the basis of VG series.
There are also representative technologies that can name names.
For most friends, the engine code is very complicated, and the meaning of letters and numbers is difficult to understand. But some systems that can be publicized and remembered easily.
Toyota's hybrid power, Honda's earth dream, Mazda's blue sky and so on, right? Very easy to remember. Everyone thinks it's famous.
By contrast, Nissan seems to have nothing to call, right?
There used to be C-VTC, and now there is VVEL, which is also the industry benchmark.
As we all know, Honda has a very powerful VTEC, and Nissan actually has it, such as C-VTC and VVEL.
Let's pay attention to VVEL, which is called "continuously variable valve lift" in Chinese. At low speed, VVEL will shorten the valve opening time, prevent oil and gas from flowing back, and improve the torque performance.
At high speed, the valve lift increases, the intake flow increases, and the optimal torque output is achieved.
For example, when we run, jog and run, the frequency and amplitude of breathing are different.
VVEL can adjust this thing. When you need to breathe, you need to breathe slowly and symmetrically.
What are the advantages of Nissan's system compared with Honda's VTEC? The word "continuous"!
For Honda's VTEC, the rotational speed needs to reach a certain value, so the valve lift will increase and the power will suddenly erupt, so some people call it "TEC explosion" and "Ahahahaha".
Professionally, this structure is called "two-stage adjustable", which is a bit like a switch, but the VVEL produced by Nissan is "stepless adjustable".
It is equivalent to matching the state of the valve in real time regardless of the speed. As far as our real breathing is concerned, it is closer and easier to use.
At present, BMW's Valvetronic technology is the only "continuously adjustable" technology in the world like Nissan.
In contrast, BMW will use more models, from 1 series to 7 series.
Nissan's VVEL is a little less than the models used, so we are not familiar with it, and its popularity is not as high as that of other manufacturers.
Nissan's Unique Secret: Cylinder Hole Injection Technology
In addition to valve control technology, Nissan is also unique in engine manufacturing.
As an expert: "lens barrel melting hole technology." Maybe you haven't heard of it.
This technology uses plasma spraying and honing technology to form a 0.2 mm thick spray film in the cylinder to replace the cylinder liner of ordinary engine.
The inner wall of the cylinder looks as bright as a mirror.
Because the cylinder liner becomes a film with better thermal conductivity, the probability of explosion can be reduced and an engine with higher compression ratio can be designed.
In addition, this film can also reduce friction loss and improve the durability of the engine.
This technology was first used in GT-R, and now it has been extended to new small displacement engines. This is the third generation engine of the new Sylphy HR 16DE.
A new generation of engine technology is also being developed.
In addition to the above, Nissan's new generation engine technology is also good. The only "variable compression ratio engine" on the market is also made by Nissan.
The 2.0L VC-TURBO engine with the compression ratio of 8: 1- 14: 1 won the title of "Top Ten Wards" for two consecutive years.
Why do you need "variable compression ratio"
We said in the previous video that increasing the compression ratio is a trend in recent years, but it does not mean that the higher the compression ratio, the better.
Jilin University Master's Thesis "Research on Performance Improvement and Mechanism Design of Direct Injection Gasoline Engine with Variable Compression Ratio".
Under partial load condition, increasing the compression ratio of gasoline can effectively improve fuel economy.
Under heavy load, in order to avoid explosion, the abnormal combustion of gasoline engine can be avoided by properly reducing the compression ratio.
Considering different working conditions, the fuel economy of gasoline engine is also available, and it is not easy to cause problems.
Compared with us, this technology is still very practical.
What's so powerful about Nissan's "variable compression ratio"
In the late 1980s, Saab began to study the "variable compression ratio" engine, and applied for related patents at 1990.
After that, many manufacturers began to look for and ponder "variable compression ratio".
Both Ford and Hyundai have studied it, but in the end they have not been mass-produced. Only Nissan made it to the end.
Nissan's "variable compression ratio" plan began in 1998, and it took four years from the initial conception to the development of the first generation structural principle. Short.
But the following structural design optimization, performance and durability improvement, further miniaturization, mass production planning and so on. Used for 16 years.
Recently, it's a bit like a rice cooker steaming cakes. After reading it, we also want to do it. The learning steps are quite simple and interesting.
Only at the beginning did we realize that there were many problems to be solved. It's really not as simple as throwing them in, covering them, pressing "Go" and taking them out. It's not as simple as we thought.
"Technology Nissan" really has technology.
Generally speaking, "Technology Nissan" is indeed very technical, but compared with Honda, Toyota and even Mazda, it is really not so good in technology popularization and publicity.
Especially the CEO, isn't he still arguing with others now?
On the other hand, Nissan engines in the domestic market are often modified on the basis of old engines, which inevitably makes you feel that "old wine in new bottles" and "old technology" have been polished again and replaced with new packaging boxes.
For example, as we just mentioned, the engine HR 16DE has been in use since 2005. It looks very old. 15 years, why not change it? correct
I just feel that I can only meet the standard of National Six B with a little change, right?
How can this leave me a bad impression on the one hand, that is, you are not self-motivated.
On the other hand, you should also think like this: the engine before 15 can meet the requirements of the national six! At the beginning, the foundation was really strong!
After all, we bought this family car for 654.38 million yuan, and it is impossible to replace it with 500,000 yuan after 15 years. The cost is also on the other side, which is really amazing.
"Ha ha ha", of course. I recently said that Nissan's technology, sales volume and "God of War GT-R" can't beat CEO carlos ghosn's sensational "escape drama", and I dare not write the script like this.
How did Nissan, which almost went bankrupt, achieve the number 1 in the world?
Not long ago, Nissan actually had a serious crisis and almost went bankrupt. At that time, carlos ghosn came out of the quagmire directly and was entrusted with the important task of saving Nissan.
Why does a foreigner work well in France and go to Japan to do this? How did people get down on their knees and ask him for help?
In the back, with what wrist did he save it? Does this have something to do with you turning against each other now? This laid the foundation.
In the 1990s, the performance of Japanese cars competed with each other. Why is there only one GT-R that hasn't been replaced in 10?
Why did Niu Wangmo's new Supra start using BMW engines? Will Nissan performance cars disappear from the world?
In fact, I have done many anecdotes or historical and cultural stories related to car lovers here.
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