| 摘要 |
PROBLEM TO BE SOLVED: To provide a combustion hose capable of attaining both of fuel low permeability (fuel barrier property) and pulsation reduction property at low cost.SOLUTION: A fuel hose includes: an inner layer 10 comprising a rubber layer 1 and a rubber layer 2; a resin layer 20 formed on the outer periphery of the inner layer 10, and mainly comprising a thermoplastic resin; and an outer layer 40 formed on the outer periphery of the resin layer 20, and comprising a reinforcement yarn layer 41 and a rubber layer 42. In the fuel hose, mechanical loss (Tanδ) of the inner layer 10 is 0.3-1.2, hose outer diameter change rate at the time when hose inner pressure is increased by 1 MPa is 10% or less, and hose volumetric change rate is 15% or more. |
