| 摘要 |
PROBLEM TO BE SOLVED: To provide a fluororesin-made hose capable of enhancing fuel penetration resistance, heat resistance and extraction resistance. SOLUTION: A hose H for fuel line is formed of fluororesin in a single-layered or multi-layered structure in the thickness from an inner surface to an outer surface. The fluororesin is preferably ethylene-tetrafluoroethylene copolymer of excellent gasoline barrier property. When the hose is multi-layered, an inner layer 1 is formed of conductive fluororesin, and an outer layer 2 is formed of fluororesin. The fluororesin is preferably fluororesin which is continuously used in the temperature range of -35°C to 130°C, and the hose may be a straight tube, or a corrugated tube K which is formed in a bellows shape except connection parts 3 at both end parts. The hose may be constituted by press-fitting a nipple of a connector to the end parts thereof, and externally inserting a notched sleeve in an outer circumferential surface portion of the hose located on the nipple. COPYRIGHT: (C)2004,JPO&NCIPI
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