The latest explanation: WD stands for Weichai Power, that is, Weidong, where 6 is 6 to 6 cylinders, and 15 stands for single cylinder displacement1.5l..
Main technical parameters:
WD6 15 diesel engine has 6 cylinders in-line, cylinder diameter 126mm, stroke 130mm, single cylinder displacement 1.5L, and engine displacement of 9.726L There are three models: naturally aspirated, supercharged and supercharged intercooled, and the basic speed is 2200 r/min.
WD6 15 is the abbreviation of WD6 15 diesel engine. WD6 15 diesel engine came to China with the whole introduction of Steyr heavy truck platform of Austrian Steyr Company to make up for the weight shortage in China truck market! At the beginning of introduction, WD6 15 engine was produced by Weifang Diesel Engine Factory (now Wei Chai Holding Group Co., Ltd.) and Hangzhou Engine Factory (now China National Heavy Duty Truck Group Hangzhou Engine Co., Ltd.). At that time, both companies were subsidiaries of China National Heavy Duty Truck Group (i.e. the combination of China National Heavy Duty Truck, Shaanxi Automobile and Hongyan before the separation).
Development history:
WD6 15 engine products have a high position in the hearts of heavy truck users in China. It can be said that without the introduction of Steyr platform, there would be no heavy truck in China today. Since the introduction of WD6 15 diesel engine, Wei Chai and Hangfa have continuously invested a lot of manpower and material resources to digest, absorb, develop and upgrade this engine.
Emissions have developed from zero emissions in Europe to the national four emissions you can see today.
Supporting fields have developed from heavy truck engines to today's: heavy trucks, buses, construction machinery, ship power, power generation equipment, agricultural machinery, fixed power and other fields. Based on WD6 15 Euro II emission, Weichai Power has developed WP 10 series national III emission engines. Mainly promote Bosch * * rail system. China National Heavy Duty Truck develops WD6 13 national III EGR series engines.