| Abstract:Heavy-duty air filter paper is the key material in the air filtration system of heavy-duty engines, which affects engine’s stability and life profoundly. In this paper, the importance of air filter paper for heavy-duty engines was discussed firstly. Then, from the standpoint of technological development, heavy-duty air filter paper was divided into four generations and the structural characteristics, development motivation and key performance of each generation of heavy-duty air filter paper were introduced. At last, this paper discussed the current technology challenges of heavy-duty air filter paper and put forward expectations for its development in China． |
