Rebirth of the Auto Giant

Chapter 373 Miracle

At the exit of the new engine installation workshop, Wang Shi and the leaders of Tang Dynasty Power Company were waiting for the finished product to come out.

There are Chen Jun, the director of the Human Resources Department, Zhai Liangpeng, the director of the Computer Technology Department, Lin Zhengtang, the head of the Service Department, and Huang Can, the master chef, Xing Lichong of the Technology Department, and Zheng Qiang, the director of the Sales Department, etc., basically all the leadership

They all gathered at the exit.

Wang Shi stands in position C.

This is a high-pressure common rail system diesel engine installation workshop. It is independent from the previous engine workshop and is directly in charge of Wang Shi and Assistant to the Technical Department.

All installation data was "developed" by Wang Shi alone. For the sake of technical confidentiality, the new engine installation workshop was set up independently.

The engines of these machines have been installed a long time ago, and the workers have been trained a few months ago. Now they are waiting for the new production line to install the electronically controlled injectors, high-pressure oil pumps, common rail chambers, high-pressure oil pipes, etc.

Once the equipment is produced, it can be installed and tested.

All external accessories are ready and placed neatly and orderly on the shelves. On the assembly line, the pulley drives the transmission belt to rotate slowly. The workers are concentrating on their posts using special tools to install the parts at their posts.

, it will run to the next point by itself after completion. If there are other positions on the conveyor belt working, it will not start even if you press the switch on the conveyor belt.

This is an automated production equipment jointly developed by Tang Dynasty Power Company and a certain university.

The production task in the past two months is to produce two types of passenger car engines: tc1.6crdi/tc1.8crdi.

tc1.6tdi:

tc: The two-pinyin abbreviation of Tang Dynasty.

1.6crdi: 1.6-liter high-pressure common rail turbocharged diesel electronic injection engine. CRDI is the abbreviation of English injection, which means high-pressure common rail diesel direct injection technology.

According to the needs of Mantang Automobile Company in Germany, two types of 1.6 and 1.8-liter engines for cars will be produced first.

According to the news from the market survey there, the current market prospects in Europe are very good. The chassis and body of the car and other components are ready, and they are just waiting for the engine provided by Tang Dynasty Power.

There is no way around it. Tang Dynasty Power Company is the only company in the world that has produced a high-pressure common rail system engine and has applied for domestic and international patents.

The Germans were anxious and had no choice but to call and urge their engineers to train faster.

According to Germans, the earlier you invest in the market, the earlier you count your money.

What is produced today is a 1.6-liter car engine.

At the exit, a bright red four-cylinder high-pressure common-rail turbocharged diesel engine was pushed out on the track by exit workers.

Wang Shi led everyone over.

There is a bright red five-pointed star on the engine hood, which is the logo of Tang Dynasty Power Company. The entire engine is basically red.

In order to reduce weight, the engine block and cylinder head used in cars are also made of aluminum alloy.

Since the thermal expansion coefficient of the all-aluminum body is the same as that of the aluminum piston, the gap between the piston and the cylinder can be controlled to a minimum, thereby reducing noise and oil consumption. Aluminum alloy also has the advantages of good thermal conductivity, fast heat dissipation and increased compression ratio, which is conducive to improving the efficiency of the engine.

Engine power.

The specific gravity of aluminum alloy is only a little more than 1/3 of iron, so the aluminum alloy body is lighter than the cast iron body, which is conducive to the reasonable distribution of the load on the front and rear wheels of front-engine front-wheel drive cars.

"Test it on stage and check all the data to see if it meets the requirements." Wang Shi said.

In addition, the factory building over the aisle is a product quality inspection workshop, which is dedicated to testing each new product.

There is a complete test module built there, the electronic control unit (ECU) and the firewood box, as well as several counter service departments and computers where you can observe various engine data at all times.

These modules and the entire electronic control unit program were written by them, and this set of observation equipment was also made by them.

Zhai Liangpeng and Weng Xinyuan from the computer technology department skillfully connected the various sensors on the engine to the electronic control unit. There was also a throttle position sensor on the ground of the module that was also connected to the electronic control unit...

After installing the electrical pipelines, it was the service department's turn. Huang Can came up and taught colleagues in the testing department how to eliminate the air in the diesel pipelines of the high-pressure common rail system.

The principle is the same as the traditional camshaft high-pressure oil pump, but the oil transfer pump of the high-pressure common rail system is not on the hydraulic oil pump, but on the pre-filter element.

"See, this round thing is our fuel pump. First, loosen the bleed screw on the pre-filter cover, and then press the fuel pump." Huang Can explained while pressing.

These things will need to be used by the inspectors when each engine leaves the factory for inspection. Otherwise, how can the engine be started?

As Huang Can pressed on one side, the diesel on the upper cover of the pre-filter continued to emerge, mixed with bubbles.

"Tighten the bleeder screw until there are no bubbles in the diesel fuel that comes out..."

Then Huang Can pressed the oil transfer pump and used the same technique to exhaust the air from the fine filter element. Finally, he went to the low-pressure oil pipe interface of the high-pressure oil pump and also pressed the air in the exhaust pipe of the oil transfer pump.

Then start the engine and bleed the air in the high-pressure oil pipes of each cylinder to complete.

"In the future, find a large iron basin and put it underneath, otherwise the discharged diesel will be too wasteful. It can be filtered and recycled, and it cannot be wasted." Wang Shi said, pointing to a pool of diesel fuel below.

"Okay." The factory inspection man said.

"Let's get started." Wang Shi said.

Zhai Liangpeng stood in front of the module, turned the key, and the engine beeped.

"This voice...is much lower."

Compared with traditional diesel engines, the engine noise of the high-pressure common rail system is much lower.

"This is just one of the advantages of the high-pressure common rail system. The most important thing is low fuel consumption and reduced emissions. Let's see how stable it is..." After Wang Shi finished speaking, he took a screw from the side and erected it on the engine rocker cover.

The car rotates smoothly and none of the screws that are upright have fallen out.

"So, our new engine has the characteristics of low fuel consumption, low noise, stable speed and low emissions. It will be the most cutting-edge new technology for diesel engines in the future." Wang Shi, the designer, said.

Emissions have not yet been formulated. In a few decades, after the National III emission standards are promulgated, the traditional high-pressure oil pump will be eliminated. By then, the world will be dominated by high-pressure common rail systems.

"Zhai Liangpeng, increase your power to check various data." Wang Shi said.

"Okay." When Zhai Liangpeng, who was sitting in front of the computer, heard Wang Shi's words, he slowly pressed down on the accelerator position sensor under his feet, and the engine slowly accelerated.

"It's amazing. I didn't see a lever on the oil pump for refueling. The engine just accelerated silently. If I hadn't known the principle in advance, I would have thought it was a ghost." Huang Can said while staring at the radial high-pressure oil pump.

.

Compared with traditional engines, the acceleration of the high-pressure common rail system relies on the acceleration and deceleration signals given by the throttle position sensor to the electronic control unit. The electronic control unit increases the amount of fuel to the electronically controlled injector according to the signal given by the throttle position sensor, thereby achieving

for the purpose of growth.

Compared with the traditional high-pressure oil pump, the new high-pressure common rail system does not have a pull rod for acceleration and deceleration on the high-pressure oil pump, so Huang Can found it very magical.