From the Ministry of Environmental Protection to accept Zhou Jingming's proposal, to the official issuance of the national standard, which lasted less than two months, the Ministry of Environmental Protection officially issued the improved national standard to the domestic automobile industry, and required, starting from 1990, to enforce the national emission standard nationwide, and individual cities can implement this emission standard in advance according to their own conditions.

The day after the Ministry of Environmental Protection issued the national standard, the Shencheng Municipal Government also issued a general announcement, in view of the increasing number of cars in Shencheng, after research and decision, Shencheng from 1987, the full implementation of the national emission standards, and gradually realize the emission upgrade of all types of vehicles in Shencheng, and before 1990, complete the emission upgrade of all diesel locomotives, including trucks and diesel vehicles.

At the same time, Yanjing and Chuncheng have also announced their own implementation of the national emission standards. So far, the national emission standards have been deeply rooted in the hearts of the people nationwide, and major automobile manufacturers have also urgently convened meetings to strive to complete the improvement and upgrading of vehicle emissions before the mandatory implementation in 1990.

As the first city in the country to implement the national one standard, SAIC Motor, especially Santana, which has just been introduced to China for a short time, also responded to this regulatory upgrade for the first time.

"According to the requirements of the national emission standard, the carbon monoxide content in the exhaust of the car shall not exceed 3.16 grams per kilometer, and the content of hydrocarbons shall not exceed 1.13 grams per kilometer. ”

In the conference room, Zhou Jingming is presiding over the factory's technical meeting, and the theme of the meeting is how to meet the national emission standard.

Compared with the more stringent emission standards of China II and China, China One only makes clear provisions on the limit values of carbon monoxide, hydrocarbons and PM content in automobile exhaust, Santana cars are originally from Germany, and Europe has always had strict requirements for vehicle emission regulations, so it is not difficult to meet the national one standard.

Xu Guanglu, who was sitting at the front, was also listening and making careful records, he knew very little about automobile emissions, and the national standard was proposed by Zhou Jingming, so Xu Guanglu decided that Zhou Jingming was responsible for the factory's emission upgrade this time.

"To meet such emission standards, improvements can be made in three areas: the engine's fuel injection system, the engine's air intake system, and finally the vehicle's aftertreatment system. Zhou Jingming paused and continued.

To put it bluntly, the requirements for automobile emission standards are nothing more than improvements from the engine and aftertreatment, and have little to do with the rest of the vehicle.

"My plan is that our Santana car, from the engine's fuel supply system to cut into, Qiming Engine Factory currently has the production of electronic injection engines, but considering the cost, at this stage it is not appropriate to fully switch the carburetor injection to electronic injection, but in order to ensure that we can meet the requirements of emission regulations, we will increase the engine fuel supply pressure, promote the full combustion of gasoline in the cylinder, this is the easiest way at present, and it is not difficult to restructure. ”

At present, the engine is all natural air intake, and it is not easy to cut from the air intake system, and in the after-treatment, whether it is such a post-treatment method, it is used to meet the national standard, which is a bit overkill, so Zhou Jingming feels that starting from the engine oil supply system is the most economical means at this stage, as long as the oil supply pressure is increased to ensure that the mixed gas can be fully combusted, it can reduce the emission of related harmful substances.

"Increasing the fuel supply pressure is no problem for Qiming Engine Factory, right?" asked Xu Guanglu with a pen.

Zhou Jingming shook his head, "This technical content is not high, only need to upgrade the high-pressure oil pump, but my idea is that at this stage, it is just to use this method as a transition, and wait until 1990, gradually replace carburetor injection with an electronic injection engine, and further optimize the aftertreatment system." ”

Increase the fuel supply pressure, can only make the car emissions meet the national one standard, if the subsequent upgrade to the second or even the third country, this alone, will certainly not be able to meet the requirements, only the oil supply system and the post-treatment system to make corresponding improvements, in order to meet the subsequent emission requirements.

"Okay, then the emission matter will be handed over to Qimingfa Agricultural Machinery Factory, but there is another point in the regulations, that is, about reducing the lead content in the exhaust gas, how should we deal with it?" Xu Guanglu continued.

Zhou Jingming smiled, "The lead content is mainly done in the petroleum system, to put it bluntly, it is to reduce the anti-seismic explosion additive of tetraethyl lead in gasoline, and our main engine factory here, as long as the hardened valve seat that does not need lead lubrication is installed on the engine, I will tell Qiming Engine Factory to prepare." ”

In the gasoline used at this stage, in order to reduce the detonation phenomenon of the engine when combusting, a large amount of anti-knocking additives of tetraethyl lead are added to the gasoline, but a large number of lead-containing harmful substances in the exhaust of the car will cause great harm to the human body, so Zhou Jingming will also add the use of unleaded gasoline to the proposal to the environmental protection department.

"Okay, then this matter is decided, and strive to complete the transformation and upgrading of the engine by the end of this year. With Zhou Jingming here, Xu Guanglu feels that everything is practical.

After arranging the affairs of the engine factory, Zhou Jingming rushed to the gear factory non-stop, and the trial production of the hypoid gear began today.

When Zhou Jingming arrived, He Yingxun, Ren Yan and others were already gathered around a machine tool, and the people around them were also excited.

"Brother-in-law, you came just in time, the trial production of our self-developed hypoid gears has passed, and all indicators meet the requirements!" After seeing Zhou Jingming coming, He Yingxun held the gear that had just been produced in his hand and said excitedly.

"I'll take a look. When Zhou Jingming heard this, he also took the gear excitedly, because he had just come off the machine tool, and the gear still exuded residual heat, and the smooth surface could shine the shadow of a person.

"Yes, on behalf of the whole factory, I would like to express my most sincere blessings and thanks to you. Zhou Jingming nodded with satisfaction and said to everyone with a smile.

There was a round of warm applause in the workshop.

"Brother-in-law, we are going to start the production of reducer gears in May this year, and then in the next month or so, we will negotiate with SAIC and Nanqi to try to take down the list of reducer gears. After the applause, He Yingxun continued.

Gear factory has been preparing for such a long time, finally ushered in the expansion of the scope of business, currently in the Yangtze River Basin, SAIC as the center, Nanqi, the second automobile shift gear, has been all taken down by the Xunming gear factory, as long as it can smoothly win the order of the reducer gear, then the Xunming gear factory in the field of domestic automotive gears, will be a veritable giant!

"It's good for you to decide what the gear factory produces, but now that this project has ended, the next requirement I put forward to the gear factory is to transform into the gearbox industry and develop its own gearbox based on our shift gears. ”

"Is it like Director Qian?" asked He Yingxun.

"No," Zhou Jingming shook his head with a smile, "Our goal is to develop an automatic transmission." ”

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