Weichai devotes great efforts to research and development of high-pressure common rail fuel injection technology to achieve a major breakthrough

Since the implementation of the China National Standards in China, what kind of fuel injection system has been used in the industry has been buzzing, EGR or high pressure common rail? The arguing smoke has not yet completely dispersed. As an independent supplier of high-power engines, Weichai Power is undoubtedly at the center of the whirlpool. However, Weichai did not participate in unnecessary arguments and did not wait and see for hesitation. This was the first to move its R&D center to Europe, and the first company to develop an engine that meets Euro III emission standards, and has unwaveringly adopted the high pressure common rail technology line. Because they firmly believe that with the arrival of the era of global economic integration, China's internal combustion engine market needs new energy-saving and environmental protection. The high-pressure common rail system is the new technology that this idea has spawned.

Correct Understanding of High Pressure Common Rail EFI Technology

The high-pressure common rail fuel injection technology refers to an oil supply method that completely separates the injection pressure generation and the injection process from each other in a closed-loop system composed of a high-pressure oil pump, a pressure sensor, and an electronic control unit. It is the high pressure fuel pump to the high pressure fuel delivery to the public supply pipe, through the oil pressure in the public supply pipe to achieve precise control, so that the high pressure tubing pressure and engine speed has nothing to do, can greatly reduce the diesel engine oil pressure with the engine speed The degree of change.

If the single pump diesel injection technology is compared to the diesel technology revolution, then the common rail can be called rebellion because it deviates from the traditional diesel system and is similar to the sequential gasoline injection system, which has reduced the emission and noise of diesel engines. The new approach has attracted the attention of people in the industry. In foreign countries, the application of common rail fuel injection systems has long been common. Bosch, one of the world's three largest high pressure common rail system suppliers, has produced 25 million common rail systems.

The use of high-pressure common rail technology, the Weichai Blue Engine, emission indicators than similar products reduced by 20%, fuel consumption rate decreased by 10% to 15%. The engine's high temperature resistance, cold resistance, exhaust brake technology, noise reduction technology, etc. have significantly improved compared with similar products. Its birth has enabled China's internal combustion engine manufacturing industry to truly have the ability to rank among the world's advanced technologies.

Weichai firmly believes that green power is a major trend in the development of internal combustion engines, and its excellent performance will certainly be recognized by the market.

With this belief, Weichai will create greater value for customers as the first element to incorporate design concepts. In the process of R&D matching, the company's technicians successfully developed a number of patented technologies this year to reduce fuel consumption. Among them, the fuel-efficient thermostat fan is perfectly matched with advanced fuel-saving and cylinder-cut technology, and the fuel consumption is reduced by 8% to 15%; Safe filter has an efficient oil-water separation function, can remove more than 95% of the moisture content of diesel fuel, allowing users to rest assured that refueling; WP multi-power fuel-saving switch to achieve the user to buy a diesel engine to achieve the effect of several diesel engines, drivers according to different road conditions , Different loading capacity, you can choose heavy load, medium load, no-load three different power output mode, just lightly toggle the fuel switch, you can choose the best diesel power, so that the vehicle's overall fuel consumption on average save 2.6 liters / One hundred kilometers.

According to the comprehensive calculation of the technical development department and users, the WP multi-power fuel-saving switch, “water removal filter”, and the WEVB technology Lanqing Guo three-diesel diesel engine have the best overall performance, and the combined fuel consumption is 2.6 liters/100 km. The rate of failure of the Blue National Engine Group that has been put on the market is 63% lower than that of the National Second Machine; WEVB has increased the braking efficiency by 55%; the operating cost of the user can save 25,000 Yuan in one year. Compared with a diesel engine with a mechanical pump and an EGR system, the combined fuel consumption of the same power can be reduced by 15%. According to the calculation of the annual fuel consumption of 40,000 kilometer-stroke for 80,000 kilometers, the fuel consumption can be 4,800 liters per year, allowing the customer to obtain real-time fuel consumption. Real benefits.

In the same way, the market is still buzzing, and there is also a smart new technology that Weichai launched - Common Rail. This is the powerful control function of Weichai's electronically controlled high pressure common rail system, combined with the needs of the Chinese market. It is the only control system that integrates vehicle and engine intelligence management into the market.

Common Rail has seven functions, including stage management, fuel consumption management, speed management, location management, security and theft, remote diagnosis and abnormal reminders. It not only restricts the purchaser’s transaction credit, but also has the real-time fuel consumption and comprehensive fuel consumption monitoring functions that enable vehicle managers to analyze based on monitoring results to improve drivers’ bad driving habits and effectively reduce fuel consumption. At the same time, it has the highest speed monitoring function, which can ensure the safety, punctuality, economy and operational efficiency of transportation. Positioning management function can instantly feedback the vehicle's driving position, allowing managers to improve the efficiency of scheduling management. It can also track and locate stolen vehicles, minimizing the risk and loss of theft. Its remote dialogue function allows maintenance experts to remotely diagnose faulty vehicles in the control center, bringing great convenience to the driver. What reassures customers is that all the above functions can be set specifically according to the needs of customers.

Common rail lines allow Weichai products to have four major selling points: low fuel consumption, low failure rate, and low use and maintenance costs. It allows our customers and Weichai to rest assured of their peers.

Users fall in love with high-pressure common rail Blue Engine

After the full implementation of State III, Shaanxi Heavy Duty Truck Co., Ltd. has taken advantage of Weichai's powertrain and launched a second generation of National III products through a series of optimizations that match the engine and the entire vehicle. The biggest feature of this model is the three-level conversion function of no-load, light-load, and full-load, providing appropriate power output for different loads and road conditions, and greatly improving the overall vehicle economy. The second-generation national triple card uses the Wengcha Lanqing WPN series diesel engine. N has two meanings: First, on behalf of new, is a new generation of diesel engines; Second, nighteenhundred, that is, the maximum speed of 1900r/min, low speed and high torque, better power performance, better load starting and climbing ability.

According to the Shaanxi Steam Engineer, the second generation of the national triple card combustion system, intake and exhaust system after a new optimization design, the use of the most advanced electronic control high pressure common rail system, the electronic control program upgrade to the seventh edition, through advanced electricity The control unit ECU precisely controls the fuel injection and the combustion is more complete.

WP10 engine 85% parts and national three engines are universal, has a good inheritance, exterior structure and connection size is basically the same as the WD615 K2 series engine, so that the cost of engine maintenance is greatly reduced; a change of oil, fuel filter and oil The filter is not higher than 1,000 yuan, the maintenance cycle of the whole vehicle engine is extended 1 to 2 times, and the maintenance cost is low.

Zhejiang Jinhua Tongji Co., Ltd. has always been an old customer of Weichai, and when it was implemented in the third year, Tongji Company wanted to replace it with a passenger car equipped with the LanQing engine, but also worried that the engine quality was unstable and the fuel consumption was high. After carefully researching the relevant information and the use of Guosan San in other regions, the company purchased 10 passenger cars supporting Weichai Power WP10.336. After the vehicle was put into operation, the operation status was very good and the fuel consumption was also low. Under the condition of air conditioning, the fuel consumption per 100 kilometers was not more than 23 liters. In the passenger-powered fuel-saving tour competition jointly held by Suzhou Jinlong and Weichai Power recently, the drivers dispatched by Tongji Company drove the coaches supporting Weichai Power to participate in the competition in Yiwu, and eventually won the championship with the lowest fuel consumption. At present, all models of Tongji Motors over 9 meters are equipped with Weichai Power.

According to related personnel of Tongji Company, “As long as it is not speeding, normal maintenance and maintenance, replacement of engine oil, and equipment for picking firewood are very durable and very fuel-efficient. There should be no problem if there is no overhaul for a million kilometers.”

Weichai has as many as 2,500 service centers nationwide. The service radius in most regions is within 50 kilometers, of which 1,200 have been serviced and authorized by Lan Qing Guo. This year's exclusive services, exclusive accessories, special oils, exclusive technology products and professional remanufacturing "5P" service projects have provided users with complete power solutions. Among them, the exclusive service is equivalent to the patient to the professional hospital for medical treatment, professionally trained service stations can provide customers with fast, efficient and professional maintenance services. To this end, Weichai Power Investment Parts Transfer Agency and special maintenance service centers have hundreds of millions of yuan. The country's three exclusive accessories ensure the timely and efficient service; special oil is just like blood transfusion to choose the right blood type, which can guarantee the normal operation of the engine and prolong its life; proprietary technology products include special testing equipment, tools and high-tech aftermarket products, So that customers not only enjoy professional repair service skills, as well as advanced equipment protection; professional remanufacturing is a bright spot for Weichai, which is equivalent to changing the heart of young people for elderly patients.

Weichai Power is one of the three engine remanufacturing pilot companies approved by the state. Customers who purchase Weichai Power enjoy lifelong service, which reduces the cost of use and extends the product life cycle.

Bosch - Weichai Cooperates to Give Market More Expectations

Bosch GmbH is one of the world's leading manufacturers of automotive technology, industrial technology, consumer products and building intelligent technology. It has established more than 270 branches worldwide and is a highly international multinational group. For more than a hundred years, Bosch has been the world leader in many different fields and has been at the forefront of the progress of the times: invented the world's first spark plug with high-voltage electromagnetic ignition system in 1902, and the world’s first multi-functional in 1952 The birth of power tools, in 1976 launched the world's first robot boom, to the newly introduced electro-hydraulic braking system, Bosch has created countless world number one. At the same time, as the world’s largest independent supplier of automotive OEM equipment, Bosch has up to 120 production facility bases and has produced a variety of systems, components and components in China. This includes the engine management system, fuel injection system - VE pump, injectors and injectors, and spark plugs.

Bosch and Weichai Power, one of the world's largest auto parts manufacturers, and one of China's largest internal combustion engine manufacturers, have conducted very good cooperation on fuel injection system projects. Weichai's Euro II and Euro III engines use Bosch's fuel injection system and are the core components purchased by Weichai Power. Bosch has become one of the largest suppliers of Weichai power. On July 9, 2009, the two parties signed again and gave the industry a new look. This is not only the need for the two companies' international development strategy, but also the need to participate in international competition. It will help combine the advanced technologies of Europe with China's national conditions, and introduce engines with dual advantages of price and technology that are suitable for the Chinese market; it will help establish an international, rapid and flexible market for R&D and production mechanisms; it will help complement each other's advantages. Build a Chinese-style engine manufacturer with strong technical capabilities.