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Both EGR and common rail, both of which can reach the National III emission, and EGR's terrible place, its cost is about 1.5 million less than the common rail, more terrible is that its technology is only in the hands of Sinotruk. . It can be imagined that when the EGR engine of China National Heavy Duty Truck passed the acceptance check by the state and made an announcement, how can other manufacturers be mentality?
In a moment, Sinotruk became the target of public criticism. Immediately afterwards, a technical dispute over the realization of the State III began to develop in the industry. They automatically divided themselves into the "common rail" and "EGR" factions and started offensives. Of course, more targets were pointed out at China National Heavy Duty Truck. EGR believes that EGR is only a transitional product and it is not a true national III emission standard. It is “false country IIIâ€. However, China National Heavy Duty Truck Co., Ltd. holds the national approval document and is well-established. "The quality of the product is still determined by the market."
Sure enough, when the industry is still arguing about the technical route, the choice of consumers has given CNHTC EGR the upper hand. The reason seems to be clear. China's commercial vehicle consumption market is, of course, the price.
Seeing that China National Heavy Duty Truck is using EGR this unique stunt left and right, smashing the market territory of other heavy truck companies, some common-rail camp enterprises have started to shake, for example, Hualing announced the use of China National Heavy Duty Truck as early as the middle of last year. The EGR engine, Yuchai and Weichai, which have been using common rail technology, have also started to produce EGR engines. More heavy truck manufacturers have begun to favor EGR.
However, no matter how intense the debate surrounding EGR is, at least EGR has emerged, breaking the monopoly of foreign-invested enterprises' electronic controlled common rail system that meets the requirements of China III emission requirements. This is also the reason why China National Heavy Duty Truck launches EGR the most "crown".
The indisputable fact is that the Bosch high-pressure common rail system, which is in an absolute monopoly position, has quietly lowered its prices soon after China National Heavy Duty Truck EGR was launched.
Not only that, there are companies in the country who have taken other measures to try to achieve the national III emission standard through electronically controlled combination pump technology. The domestic electronic control technology is also accelerating...
The emergence and "prevalence" of EGR has triggered not only the technical route but also the wisdom of how "advanced" and "appropriate", "world" and "Chinese" coexist.
The so-called EGR, full name "H pump + EGR technology", which is based on the State II mechanical pump, the use of electromagnets to control the mechanical pump rack, the oil valve, made simple electric injection pump plus EGR exhaust gas reprocessing System to reduce exhaust emissions. The electronically controlled high pressure common rail technology separates injection pressure generation and injection from each other in a closed loop system consisting of a high pressure oil pump, a common rail tube, a pressure sensor, and an ECU.
September 20, 2023