Before going to Germany, it was Chen Geng's main job to improve the new car "Alpha" as much as possible, but today, Chen Geng made an exception, he left his work at hand and came to Runhua Industrial Automobile Design and Development Center early in the morning. Pen | fun | pavilion www. ｂｉｑｕｇｅ。 ｉｎｆｏ

Today, there is a big event!

In September last year, Chen someone, who was stimulated by Denso Corporation of Japan, decided to develop his own car air conditioning compressor, and this decision was ridiculed by the bastard Shinichiro Tanaka of Denso Corporation, but in less than a year, the prototype of the first domestic car air conditioning compressor in the Republic was born in Runhua Industrial Automobile Design and Development Center!

Chen Geng didn't think how great this "first in the republic" was, he had only one thought in his heart: we Chinese finally produced our own car air conditioning compressor, no longer have to look at the faces of foreigners, and the next time I meet that guy from Shinichiro Tanaka, Lao Tzu must drop this air conditioning compressor on the girl's face!

Although it will take some time to produce the prototype and the loading model that can really be industrialized and mass-produced, it does not hinder Chen Geng's good mood at all.

Walking in, the most conspicuous thing is the red cloth table in the middle of the room, on the table are two today's exhibits, that is, the car air conditioning compressor, one of which looks a bit like the cylinder of an air-cooled motorcycle engine, covered with heat dissipation fins, a cold look, it is really not easy to tell the difference between this product and the air-cooled gasoline engine for generators; The other one is slightly more like a motor without a heat sink.

"This is the air conditioning compressor you make?" Old Man Xie looked at the two machines on the table with great interest, and said with a smile: "The difference between these two is quite big." ”

Wang Shaofeng, the project leader of the on-board air conditioning compressor, hurriedly introduced to Mr. Xie: "Mr. Xie, the appearance of these two compressors is not the same, because the uses are different. ”

"Oh?" Old Man Xie nodded and motioned for Wang Shaofeng to continue.

Pointing to the compressor that is a little surface covered with heat dissipation fins and looks like an air-cooled gasoline engine, Wang Shaofeng introduced: "This compressor is a crankshaft connecting rod type car air conditioning compressor, I believe you feel very familiar when you hear this way of working, yes, this compressor works in a similar way to our engine, there are cylinders, pistons, crankshafts, connecting rods, and the working principle is also similar to that of automobile engines, which is divided into compression, exhaust, expansion, and suction." ”

After listening to Wang Shaofeng's introduction, Old Man Xie said to Chen Geng with a smile: "It really sounds like our engine working process." ”

"You're right, the working process of this compressor is really similar to our engine," Wang Shaofeng nodded again and again: "Specifically, it is a bit similar to when we run in the engine cold, the crankshaft is driven by the external power source, and the connecting rod and piston are driven by the crankshaft, and then the piston does reciprocating motion in the cylinder, in this process, the working volume composed of the cylinder inner wall, cylinder head and piston top surface will change periodically, so as to compress and transport the refrigerant in the refrigeration system." ”

This is simple and easy to understand, and to Runhua Industry itself is to rely on cars and engines to start, Chen Geng to technology, technical personnel and attach great importance to the role of the downward effect, the people present, even if it is an administrative staff, for some technical things can often say one, two, three, four, Wang Shaofeng said this, everyone immediately understood: to put it bluntly, it can be basically considered that this is an engine driven by an external machine.

Only Chen Geng was still sighing in his heart: this kind of crankshaft connecting rod on-board air conditioning compressor with heat dissipation fins is really ...... I haven't seen you in years.

The old man didn't care how much this thing looked like an engine, he cared about something else: "Okay, good, but does this compressor work reliably?" Is the failure rate high? Will there be frequent problems? ”

Wang Shaofeng immediately said: "You can rest assured, the technology of this compressor has been developed for decades, and the technology is very mature. In terms of structure, the structure of the compressor in this working mode is very simple, and the requirements for processing materials and processing technology are relatively low, and we have a lot of experience in manufacturing engines, so it is optimistically estimated that this compressor can be mass-produced after three months at most.

By the way, because of the simple structure, this compressor also has a side benefit, that is, because it is simple, there are few places that are prone to problems, so the failure rate is very low, in addition, because of the simple structure, it is not easy to break, even if it is broken, it is easy to repair. ”

"Great, we finally don't have to look at other people's faces," hearing this answer, the old man was overjoyed, but when his eyes fell on another compressor that was particularly small and delicate in comparison, he was a little puzzled: "It's all compressors, why is this compressor so big, this compressor can be made so small, and why don't I bring heat sink fins?" ”

"I'll tell you about this," Chen Geng took the words over, and said: "During this time, I also learned about the instructions of the on-board air conditioning compressor, just introduced by Wang Gong This crankshaft connecting rod compressor is the most suitable for our situation and technical level of compressor at this stage, and the technology is also the most mature, but its shortcomings are also more obvious, such as you see, this compressor is relatively large, the structure is relatively bulky, and it is difficult to achieve such lightweight as this one;

In addition, because its structure is very similar to the piston engine, there are also some common problems similar to the engine, such as it is not good to achieve high speed, the exhaust process is a bit pulsed and intermittent, the airflow is prone to fluctuations, and because of the reciprocating motion of the piston, the vibration of the compressor at work is also relatively large, so in Europe, America and Japan, the compressor of this working mode is widely used in the air conditioning system of medium buses, buses and trucks with relatively large refrigeration needs. ”

"What you are talking about," Wang Shaofeng nodded again and again, as one of the project leaders of Runhua Industrial Automobile Design and Development Center, Wang Shaofeng of course knew that Chen Geng's skills in automobile design and understanding of automobiles were the top in China, but when it came to the equipment of such a small subsystem as the on-board air conditioning compressor, he still understood it so clearly, which made people shocked, and said with admiration: "In Europe, the United States and Japan, these countries with developed automobile industries, This crankshaft linkage type on-board air conditioning compressor has gradually shifted from cars to buses, buses and heavy trucks, but the technical difficulty of this compressor is the lowest. ”

"Good." Chen Geng nodded.

Wang Shaofeng continued: "Our Runhua Industry itself is not the right enterprise, so I think, if possible, in addition to self-use and development of the bus, bus, truck market, we can also develop the military market, for example, many military vehicles need a large number of cooling systems, although the speed of our compressor is not easy to increase, but like the engine, it is easier to make it bigger, and it is easy to achieve a large cooling capacity." ”

"This is a good way," Chen Geng thought about it seriously, and agreed with Wang Haofeng's suggestion: "Your suggestion has inspired me, since this kind of compressor is easy to make relatively large, we can continue to make it bigger, big enough to provide refrigeration for the whole building, that is, as the core compressor of central air conditioning for large buildings, what do you think?" ”

Wang Shaofeng was stunned for a moment, and then slapped his thigh hard: "Good idea, why didn't I think of it?!" ”

Now there is no central air conditioning for large buildings in China, all of which are split air conditioners used in small rooms.

If Runhua Industrial develops a central air conditioner for buildings, it is not only conducive to energy saving, but also easy to keep the exterior walls of the building clean and tidy, save procurement costs, and most importantly, this will open up a new source of income for Runhua Industry.

The other people who came to visit with Chen Geng and Xie Minsheng collectively looked at the back of Chen Geng's head: How did Chen Dong's head grow? We are still wondering when this compressor will be installed in the car, and Chen Dong has begun to think about other markets for this compressor?

This makes people a little sad, is there really such a big gap between mortals and geniuses?

Chen Geng didn't care what everyone thought in their hearts, pointed to the other compressor on the table that did not have any heat dissipation fins on the surface, and said to Wang Shaofeng: "What about this compressor?" ”

"This is the latest axial piston vehicle air conditioning compressor abroad, its advantages have been seen by everyone, that is, the size is small, much smaller than the crankshaft connecting rod compressor, and to this compressor runs smoothly, the relative power consumption is relatively low, very suitable as a car air conditioning compressor, is currently the world's most advanced vehicle air conditioning compressor, representing the future development direction of the vehicle air conditioning compressor, Europe, America and Japan and other countries car manufacturers are beginning to use this high-end compressor on their own high-end models, Since we want to make a compressor, we must not only focus on mature technology, but also aim at the world's advanced level," Speaking of this, Wang Shaofeng was a little regretful: "The problem now is that the failure rate of this compressor is relatively high, the operation is not very stable, and there are still many problems to be solved." ”

Wang Shaofeng is a little regretful, but Mr. Xie is very satisfied, there are compressors that can be used now, and there are compressors that represent the future, what is not satisfied? He said happily: "That's good, don't be afraid of problems, you don't have to worry, take your time, you will always solve all the problems, I have confidence in you." (To be continued.) )