61 models from the four families of the most popul

2022-08-16
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61 models from four families of Changchai have passed EPA certification

61 models from four families of Changchai have passed EPA certification

China Construction machinery information

Guide: Recently, it was learned from the technology center that four families of diesel engines of Changchai company have passed the 2011 United States EPA emission compliance certification, including four models of the company's new ev80 diesel engine and seven models of 3m78 diesel engine. In addition, Many models including 4l40 with 495 and 490B as prototypes

recently, it was learned from the technology center that Changchai has four families of diesel engines that have passed the 2011 EPA emission compliance certification, including four models of the company's new ev80 diesel engine and seven models of 3m78 diesel engine. In addition, many models including 4l40 with 495 and 490B as prototypes and many models including 3ls30 with zn390t as prototypes have also passed the EPA certification this time

in recent years, Changchai company has continuously deepened the adjustment of product structure. Therefore, the treatment of waste plastic particles in the company's technical center will become a hot topic in the future. According to the requirements of the company's policies and objectives, various R & D project teams have made great progress in multi cylinder, single cylinder diesel engines, gasoline engines, units and other aspects. At the same time, they have also initiated new projects according to the feedback information from domestic and foreign markets, For each project, the corresponding development schedule is formulated, and positive efforts have been made for the smooth promotion of the company's new products, especially in the development and testing of ev80 and 3m78. All departments of the company have made a lot of efforts for this purpose

these two products were developed by the company in 2008. Ev80 carried out emission test on the prototype at the end of October 2008. In order to improve the reliability of the product, the technology center carried out several tests on ev80. From a technician's work note, in the year from 2009 to 2010, the notebook recorded in detail the data of more than 20 rounds of tests, the improvement scheme and the test results of each test, All provide an important basis for the next improvement. Since this year, we have focused on further work on the reliability of relevant main parts. After cooperating with relevant supporting suppliers to improve, the improved parts have successfully passed the 1000 hour full speed and full load assessment, and the problems arising from the small batch production transferred to the workshop have been improved in time. At present, the workshop production has been relatively smooth and stable. Ev80 diesel engine has been vigorously promoted by the sales company and overseas business division, At present, it has worked with more than 20 manufacturers to match generators, refrigerated trucks, water pumps, elevators, etc. before it can be set up, and is working hard to communicate with rice transplanters, multi-functional garden management machines, lawn mowers. Ev80 diesel engine is also one of the company's profitable varieties, and has applied for five patents

3m78 is mainly used for generator sets in marine engine and other fields at the same time. Since the design and research and development began in 2008, the company has made small batch supply and support with more than 10 enterprises at home and abroad. At the same time, the company has also been sparing no effort in the improvement and design of valve cam and cylinder head of 3m78 diesel engine, as well as the development of pressure increasing 3m78 diesel engine, At present, the third round of supercharger improvement test is being carried out. What are the uses of the anchor fatigue tester and the functional characteristics of the equipment, so that all the performance can meet the final design requirements

in the process of this certification, according to the new requirements of EPA, the company has conducted particulate matter tests on several families of source machines under each working condition, and measured CO2 under each working condition. All new additional test procedures comply with EPA regulations. According to the relevant person in charge of the technology center, according to the requirements of American emission regulations, the new standard for 25-75 HP off-road engines will be implemented in 2013, and the particle limit is only one tenth of the current stage. Therefore, the company will race against time to increase development efforts in the next stage, especially the improvement and development of common rail fuel system. For this reason, the company has communicated with relevant partners

in addition, Changchai also made active efforts in the EU emission certification. In the first half of the year, the production consistency of EU certified diesel engines produced in batch in the workshop was thoroughly investigated, and the maximum and minimum allowable values of some parameters were tested and certified. At present, the key parameters affecting emissions are being optimized

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