关键词: 车辆工程, 高分子, 微孔滤清, 双层滤芯, 旁通阀

Abstract: According to the defects of the short service life of paper filtering core and obligatory replacement after being jammed, a new technology of precise micro-porous filtration of automobile fuel based on the high polymer filtering material was developed. Meanwhile, the filtering core with inner and outer layers of filter tubes and with bypass valve was designed in structure, which realized double filtration as well as single filtration when the outer layer was blocked. Key realization technologies were proposed, including high polymer precise micro-filtration technology, filter core manufacture, structure design, working principle, main technical characteristics, etc. The proposed technology and its new filter core have many advantages, such as high filtration accuracy, fast filtration speed, good chemical resistance, simple structure, low cost, micro-porous regeneration and long service life.

Key words: vehicle engineering, high polymer, micro-porous filtration, double layer filter, bypass valve〖FGN〗